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WorksheetsPTA 1800 Chap 3
Total questions: 112
Worksheet time: 56mins
Which phase of tissue healing primarily prepares the injury site for subsequent repair?
Hemostasis Phase prepares the site for repair
Remodeling/Maturation Phase prepares the site for repair
Inflammatory Phase prepares the site for repair
Repair/Proliferation Phase prepares the site for repair
What is the main focus of the Repair/Proliferation Phase in tissue healing?
Preparing the area through vascular and cellular responses
Restoring full function and maturation of tissues
Tissues begin to build strength and structure
Resolving inflammation without any tissue changes
How do the three phases of tissue healing relate over time?
They happen randomly without any predictable order
They are mutually exclusive and never coincide
They occur sequentially with no overlap at all
They overlap chronologically with interdependent timing
Which statement best captures the dependency between inflammation and healing?
Inflammation can occur without healing, but healing cannot occur without inflammation
Healing and inflammation are unrelated processes entirely
Inflammation always requires healing to begin
Healing can occur without inflammation in many cases
Which term describes redness in the inflammation phase due to increased blood flow, also called hyperemia?
Dolor indicates increased perfusion
Calor indicates increased perfusion
Tumor indicates increased perfusion
Rubor indicates increased perfusion
During acute inflammation, which cardinal sign is primarily linked to increased permeability and vasodilation?
Dolor from nociceptor pressure
Calor from arterial inflow
Tumor from vascular leakage
Rubor from capillary dilation
Hyperemia contributes most directly to which cardinal sign observed at inflamed tissue?
Swelling from fluid exudate
Redness from higher flow
Pain from pressure change
Loss of function from guarding
Which statement best characterizes the immediate purpose of the inflammation phase?
To restore full function rapidly
To eliminate all edema instantly
To reverse vasodilation promptly
To protect and prepare for healing
A patient presents with heat, redness, swelling, and pain after ankle sprain. What additional clinical outcome completes the classic set of signs?
Reduced joint mobility
Accelerated collagen synthesis
Enhanced tissue perfusion
Increased systemic fever
Which trigger is MOST consistent with chemical induction of inflammation?
Exposure to strong alkali
Invasion by gram bacteria
Cold-induced frostbite
Autoimmune joint reaction
Foreign bodies can initiate inflammation. Which example best fits this mechanism?
RA synovial autoimmunity
Viral upper infection
Retained surgical suture
UV skin irradiation
Which scenario exemplifies thermal agents causing inflammatory responses?
Sunburn from ultraviolet
Fracture of tibial shaft
Knee contusion after fall
Burn from hot surface
Which event occurs first at the injury site during the acute vascular reaction?
Sustained local vasodilation with permeability
Brief systemic vasoconstriction from pain and SNS
Formation of purulent exudate rich in leukocytes
Overwhelmed lymphatic drainage causing fluid stasis
The primary purpose of short-lived systemic vasoconstriction after trauma is to
Recruit macrophages to clean debris
Increase lymphatic pumping to clear fluid
Raise tissue acidity to guard muscles
Shunt blood and initiate clot formation
Which mediator is most closely linked to systemic vasoconstriction in the acute phase?
Bradykinin from plasma proteins
Histamine released from mast cells
Norepinephrine via sympathetic nerves
Prostaglandins from endothelial cells
Local vasodilation and increased vascular permeability near the injury primarily function to
Limit chemical accumulation and acidity
Reduce hydrostatic pressure in capillaries
Bring cells to kill microbes and clean
Prevent leukocyte margination
Edema formation in interstitial tissues is best described as
Excess red cell migration into tissues
Collapse of capillary endothelial cells
Accumulation of fluid outside vessels
Rapid plasma loss into arterioles
Which combination contributes most to edema development during inflammation?
Increased venule permeability
Reduced interstitial osmotic pressure
Enhanced lymphatic clearance
Decreased capillary hydrostatic pressure
Transudate is characterized by
Cloudy viscous fluid due to plasma proteins
Excess acidity causing muscle guarding
First fluid forming edema with low proteins
Pus rich in leukocytes and necrotic debris
Exudate differs from transudate because exudate
Is mainly composed of lymph and electrolytes
Forms before transudate during edema
Contains more plasma proteins making it cloudy
Has lower viscosity than transudate
Purulent exudate is defined by
High leukocyte concentration within exudate
Minimal protein content and clear appearance
Early-phase fluid with few cells present
Predominantly erythrocyte accumulation
During the vascular response, fluid stasis most directly leads to
Increased viscosity and tissue acidity
Enhanced lymphatic removal of exudate
Decreased chemical mediators in tissue
Lower vascular permeability in venules
Which statement best connects local vascular changes to functional goals at injury sites?
Vasoconstriction clears bacteria through pus
Vasodilation reduces bleeding but limits clotting
Lymphatic overload prevents leukocyte migration
Permeability increases to deliver fragile cells
Which sequence best represents early events in the vascular response to injury?
Pus accumulation → transudate formation → vasodilation
Systemic vasoconstriction → local vasodilation → edema formation
Exudate formation → norepinephrine release → stasis
Local permeability rise → systemic vasoconstriction → clotting
Which event best defines the cellular response early in inflammation?
Keratinocytes seal the wound surface
Endothelial cells form new vessels
Fibroblasts build collagen bundles
Leukocytes migrate to clear debris
Which leukocyte primarily performs initial phagocytosis at the injury site?
Neutrophil
Lymphocyte
Basophil
Eosinophil
Which statement describes how neutrophils influence other cells at an injury?
They attract other leukocytes to the area
They dissolve fibrin lattices entirely
They differentiate into plasma cells rapidly
They inhibit mast cell degranulation strongly
Which substance release by working macrophages can inhibit microbial growth?
Prostaglandin E4
Bradykinin peptide
Histamine sulfate
Hydrogen peroxide
Which process creates a temporary plug to limit local bleeding?
Elastin fiber deposition
Fibrin lattice cross-linking
Collagen triple helix unwinding
Platelet apoptosis pathways
Immediately after vascular injury, platelets most directly bind to which structure?
Endoplasmic reticulum lipids
Circulating immunoglobulin chains
Exposed subendothelial collagen
Keratin filaments of epithelium
Which best explains the role of fibrin released during hemostasis?
Promotes angiogenesis and collagenase
Blocks antigen binding to plasma cells
Activates complement and lyses bacteria
Stimulates clotting and stabilizes platelets
Which immune pathway culminates in formation of the membrane attack complex (MAC)?
Complement system cascade
Coagulation factor pathway
Platelet activation cycle
Kinin–prostaglandin axis
Which cells are activated to become plasma cells that produce antibodies?
Fibroblasts activated by platelets
B cells activated by T lymphocytes
Basophils activated by mast cells
Neutrophils activated by macrophages
Which outcome is most directly achieved by the MAC?
Differentiation of B cells only
Lysis of foreign cell membranes
Formation of fibrin cross-links
Chemotaxis of neutrophil clusters
During day 1 of inflammation, which coordinated interaction most effectively clears bacteria?
Neutrophil phagocytosis with macrophage recruitment
Platelet adhesion with collagen remodeling
Complement inhibition with fibrin breakdown
Keratinocyte migration with angiogenesis start
Which feature best distinguishes a muscle spasm from other guarding types shown in the diagram?
Conscious action driven by fear of pain
Sudden reflexive twitching that fades with support
Prolonged subconscious contraction without fear component
Doughy, dense feel that persists with support
What condition causes voluntary muscle guarding according to the diagram?
Sudden reflexive twitching due to nociception
Accumulation of muscle metabolites during stasis
Prolonged subconscious contraction relieved by support
Fear of pain prompting conscious muscle action
Which statement about involuntary muscle guarding is accurate in the diagram?
Subconscious inhibited muscle due to metabolite buildup
Subconscious prolonged muscle action that eases with support
Sudden reflexive twitching that resolves with support
Conscious action that will disappear with no fear
Which type is labeled as chemical muscle guarding in the diagram?
Prolonged subconscious contraction that eases with support
Conscious action that vanishes once fear subsides
Subconscious inhibited muscle from metabolite buildup with stasis
Sudden reflexive twitching that stops when supported
According to the pain cycle diagram, what immediately follows injury?
Pain leading to muscle guarding
Circulatory stasis and metabolite retention
Lowered tissue thresholds and tolerances
Limited activity and prolonged healing
In the cycle, what mechanism most directly contributes to chemical muscle guarding?
Lowered tissue thresholds from prolonged guarding
Retention of waste products like lactic acid
Limited activity following irritation and re-injury
Fear-driven conscious contraction
Which intervention would most effectively break the pain cycle at the guarding stage, based on the diagram logic?
Encourage fear to heighten voluntary action
Provide support to reduce pain and guarding
Increase immobilization to protect tissues
Promote metabolite accumulation through stasis
Which sequence best represents the self‑perpetuating loop shown in the pain cycle diagram?
Injury → Guarding → Pain → Stasis → Metabolites → Thresholds → Activity → Re‑injury → Chemical muscle
Injury → Pain → Guarding → Stasis → Metabolites → Chemical muscle → Lowered thresholds → Limited activity → Re‑injury/irritation → Pain
Injury → Pain → Chemical muscle → Guarding → Stasis → Metabolites → Limited activity → Re‑injury → Thresholds
Injury → Stasis → Pain → Metabolites → Guarding → Chemical muscle → Limited activity → Lowered thresholds → Pain
Which time window best characterizes the proliferation phase of tissue repair?
Day 0 to day 3
Day 3 to day 20
Day 21 to day 60
Day 60 to day 100
During the proliferation phase, what happens to inflammation?
Inflammation remains unchanged
Inflammation increases markedly
Inflammation fluctuates unpredictably
Inflammation decreases progressively
Which initial collagen type predominates early in proliferation and has low tensile strength?
Type I collagen
Type II collagen
Type IV collagen
Type III collagen
Neovascularization during healing refers to which process?
Formation of epithelial layers
Formation of lymphatic ducts
Formation of blood vessels
Formation of new nerves
Which cell type primarily drives wound contraction in the proliferation phase?
Keratinocytes
Myofibroblasts
Neutrophils
Endothelial cells
Which statement best describes re-epithelialization?
Deposition of fibrin clot
Aggregation of platelets
Restoration of skin coverage
Crosslinking of collagen fibers
According to typical healing timelines, when does collagen accumulation become most prominent?
Remodeling phase
Late proliferation phase
Early inflammation phase
During hemostasis phase
Which events are most characteristic of the hemostasis stage in early wound healing?
Fibroblast proliferation begins
Chemotactic signals escalate
Epithelial cells migrate to cover
Platelet aggregation and fibrin clot
Which phase of healing can persist for more than a year after injury and focuses on restoring prior tissue function?
Maturation phase emphasizing functional restoration
Proliferative phase emphasizing collagen synthesis
Inflammatory phase emphasizing edema control
Hemostasis phase emphasizing clot stabilization
During maturation, what process primarily restores tissue strength by changing collagen type?
Elastin deposition increasing tissue recoil
Fibroblast apoptosis reducing scar volume
Collagen conversion replacing type III with type I
Angiogenesis expanding capillary networks
Which statement best differentiates type III from type I collagen in healing tissues?
Type III is more elastic; type I is vascular
Type III is weaker; type I is stronger
Type III is permanent; type I is absent
Type III is stronger; type I is immature
Balanced synthesis and lysis during maturation are necessary for what outcome?
Immediate return to full tensile strength
Complete elimination of fibroblasts
Rapid clot formation and degranulation
Normal remodeling of scar architecture
As collagen matures and vascularity decreases, how does the scar’s appearance typically change?
From pale to cyanotic coloration
From red to white coloration
From purple to brown coloration
From white to red coloration
During the proliferative phase, tensile strength may be as low as approximately what percentage due to immature collagen?
5% of normal tensile strength
15% of normal tensile strength
50% of normal tensile strength
90% of normal tensile strength
Around which time does type III collagen begin to be replaced by type I collagen in healing tissue?
Day 3 post-injury
Day 7 post-injury
Day 12 post-injury
Day 30 post-injury
By roughly six weeks of healing, tissue tensile strength typically reaches what range with collagen maturation?
95–100% of original strength
75–80% of original strength
45–55% of original strength
25–35% of original strength
Which statement best describes scar tissue in normal healing?
It is a more mature collagen than normal
It is always problematic and requires removal
It is a natural part of healing processes
It contains abundant elastin like normal skin
Scar tissue becomes problematic primarily when it is:
Fully remodeled and pale
Excessive or disorganized
Confined to original wound edges
Well organized and limited
During maturation, the physical characteristics of a scar are determined by the balance between:
Edema and angiogenesis rates
Synthesis and lysis of collagen
Elastin deposition and fibrin
Inflammation and vasoconstriction
If collagen production exceeds collagen breakdown, the likely outcome is:
Improved tensile strength
Keloid or hypertrophic scar
Faster wound epithelialization
Atrophic scar formation
Which feature distinguishes keloids from hypertrophic scars?
They regress within months
They extend beyond original boundaries
They remain confined to incision line
They form only with infection present
Keloids are primarily associated with:
Enhanced oxygen-independent synthesis
Reduced fibroblast differentiation
Excessive elastin production
Genetic defects in collagen lysis
Why can compression therapy help treat keloids?
It increases local oxygen for synthesis
It expands scar boundaries into healthy tissue
It reduces oxygen, favoring collagen lysis
It stimulates elastin deposition in scars
Collagen synthesis after injury can persist for approximately:
2–4 weeks total
12–24 months total
3–6 years total
48–72 hours total
Intervention aimed at directing tissue remodeling is most effective during:
The first 24 hours
Between days 5–21
Months 10–18
After 6–9 months
By 6–9 months, scar collagen typically becomes:
Similar to normal dermal collagen
Highly elastic and extensible
Unable to be deformed or lengthened
Most responsive to mechanical therapy
Which visual cue suggests ongoing scar remodeling during follow‑up?
Scar appears paler than skin
Scar contains visible elastin fibers
Scar is fully flat and mobile
Scar appears redder than surrounding tissue
At approximately 3–5 weeks after injury, what percentage of tissue durability/integrity is typically present?
100 percent integrity
10 percent integrity
40 percent integrity
70 percent integrity
Which tissue uniquely heals to 100 percent of its original collagen with full cellular turnover?
Skeletal muscle
Ligament tissue
Articular cartilage
Bone tissue
Collagen remodels most effectively when exposed to which condition?
Complete load avoidance
Prolonged immobilization
Optimal healthy stress
Continuous heat therapy
Which statement best reflects the principle often summarized as “form follows function” in tissue healing?
Movement demands guide tissue structure
Pain level dictates collagen type
Blood flow sets joint geometry
Tissue shape determines movement
Which combination of factors must be managed to promote optimal tissue healing with stress application?
Age, gender, height
Diet, hydration, sleep
Location, color, size
Timing, type, amount
Which stress pattern best supports remodeling of articular cartilage and the inner annulus or nucleus of the disc?
Rapid ballistic stretching
Shear and torsion only
Modified compression and decompression with gliding
Pure tension without motion
Which stress type most appropriately targets bone for remodeling in the line of stress?
Tension loading
Compression and decompression
Rotational torsion
Shear strain
Muscle, tendon, ligament, capsule, and the outer annulus of the disc respond best to which stress in the line of stress?
Compression cycles
Gliding mobilization
Tension loading
Hydrostatic pressure
For the outer annulus of the intervertebral disc, which movement specifically produces the desired line-of-stress tension?
Lateral gliding
Pure compression
Axial rotation
Flexion movement
According to typical healing timelines, what tissue durability/integrity is expected at 2–3 months post-injury?
10 percent integrity
40 percent integrity
70 percent integrity
100 percent integrity
What duration most accurately defines chronic inflammation in clinical practice?
Lasts about one weekend
Lasts fewer than four days
Lasts roughly two weeks
Lasts more than one month
Which statement best distinguishes sub-acute from chronic inflammation by time course?
Sub-acute one weekend; chronic one semester
Sub-acute past four weeks; chronic past one month
Sub-acute past one month; chronic past four weeks
Sub-acute under two weeks; chronic under one month
Which mechanism commonly initiates chronic inflammation?
Immediate hemostatic response
Primary intention wound closure
Persistence of the injuring agent
Abrupt resolution without scarring
Which tissue change is most characteristic of chronic inflammation?
Rapid epithelialization only
Fibroblast proliferation with collagen
Neutrophil burst without repair
Complete absence of edema
Which clinical sign profile aligns with chronic inflammation?
Bright redness, intense heat, no edema
Heat, redness, fluctuating abscess, crepitus
No pain, no edema, full strength quickly
Pain, pitting edema, hardness, no heat
Which local factor most likely delays collagen synthesis during healing?
Young patient age
High dietary protein
Gentle protected movement
Compromised vascular supply
Infection in a wound primarily affects healing by which mechanism?
Reducing collagen production and increasing lysis
Enhancing tensile strength and mobility
Accelerating epithelial closure without scarring
Eliminating need for immune response entirely
Excessive movement of an injured area most likely leads to which outcome?
Delayed healing and possible adhesions
Immediate restoration of full strength
Improved collagen alignment instantly
Reduced infection risk regardless
Which wound characteristic typically heals faster among local factors listed?
Chronic ulcer with ischemic margins
Large poorly perfused abdominal wound
Small well-vascularized scalp wound
Extensive degloving soft tissue wound
Which systemic condition commonly impairs collagen synthesis and increases infection risk during healing?
Poorly controlled diabetes
Mild seasonal allergies
Optimal hydration status
High cardiorespiratory fitness
Which medication effect can delay healing by inhibiting inflammatory pathways?
Antihistamines accelerating lysis
Probiotics increasing neutrophils
Acetaminophen boosting collagen
Corticosteroids blocking the cascade
Which age-related pattern best describes wound closure rates across the lifespan?
Both ages heal at identical rates
Geriatric closure faster than pediatric
Ages have no effect on closure
Pediatric closure faster than geriatric
Which feature most directly explains cartilage’s limited healing capacity?
Presence of rich vasculature and nerves
Avascular and aneural tissue properties
High metabolic rate of chondrocytes
Abundant lymphatic drainage pathways
In musculoskeletal healing, which tissue is characteristically avascular, leading to slow repair?
Ligament tissue in all regions
Cortical bone structures
Articular cartilage of joints
Skeletal muscle fibers
Which combination best describes structures absent in cartilage that hinder repair?
Capillaries, venules, lymphatics
Arterioles, sympathetic nerves, glands
Veins, nociceptors, melanocytes
Lymph nodes, endocrine cells, ducts
Tendons typically heal through which sequence during maturation?
Immediate remodeling and rapid strength gain
Inflammation, proliferation, remodeling
Direct ossification without collagen
Angiogenesis absent throughout phases
Ligament healing often results in which mechanical consequence compared to pre-injury?
Restored identical stiffness and alignment
Irreversible necrosis without repair capacity
Residual laxity with altered collagen organization
Complete ossification replacing fibers
Which intervention most directly improves nutrient delivery to injured cartilage?
Increased joint loading causing compression
Controlled motion enhancing diffusion
Prolonged immobilization with casting
High-intensity electrical stimulation
Skeletal muscle injury complicated by myositis ossificans involves which process?
Complete denervation without regeneration
Autoimmune destruction of myofibrils
Ectopic bone formation within muscle
Fibers transforming into adipocytes
Compared with tendon, cartilage’s reparative response is typically characterized by which cellular activity?
Rapid osteoblastic bridging of defects
Extensive satellite cell activation and fusion
Limited chondrocyte division and matrix turnover
Robust fibroblast proliferation and vascular ingrowth
Early tendon healing strength is primarily due to which factor?
Reinnervation improving contractility
Mineral deposition raising stiffness
Scar tissue bridging with type III collagen
Crosslinking of type I collagen fibers
Which statement best contrasts ligament and tendon healing environments?
Tendons are intra-articular and bathed in synovial fluid
Both are avascular and lack any neural input
Ligaments are intramuscular and highly vascular
Extra-articular ligaments have better blood supply than intra-articular ones
What consequence may follow aggressive massage of a large quadriceps contusion in the first week?
Immediate restoration of tensile strength
Increased likelihood of myositis ossificans
Reduced risk of hematoma organization
Enhanced satellite cell fusion into fibers
Which rehabilitation strategy best aligns with tissue-specific healing for tendons in the maturation phase?
Progressive loading with controlled tensile stress
Complete rest until six months post-injury
Continuous passive motion without resistance
Early high-load eccentric training
Which event occurs during the inflammation phase of bone healing shortly after impact?
Medullary canal becomes patent again
Fracture stabilizes with soft callus
Lamellar bone replaces fibrous bone
Hematoma formation lowers local pH
Soft callus formation primarily serves what function during fracture healing?
Initiates neovascularization and contraction
Converts woven bone to lamellar bone
Stabilizes fracture and decreases pain
Restores medullary canal patency
The hard callus phase most closely corresponds to which clinical observation?
Clinical healing period timing
Acute heat and redness signs
Balanced collagen lysis activity
Scar color lightening changes
During bone remodeling, what key transformation occurs to the repaired tissue?
Fibrous bone converts to lamellar bone
Soft callus expands into hematoma
Collagen synthesis ceases completely
Neovascularization declines abruptly
Which set correctly lists the three general phases of tissue repair across tissues?
Inflammation, proliferation, maturation
Hemostasis, ossification, remodeling
Initiation, progression, resolution
Granulation, epithelialization, scar
Which features best characterize the proliferation phase in soft tissue healing?
Epithelialization, fibroplasia, contraction
Hematoma formation and lower pH
Heat, redness, swelling, pain
Balanced collagen synthesis and lysis
Which statement about scar tissue strength is most accurate?
Never differs across tissue types
Often weaker than original tissue
Usually stronger than original tissue
Always equal to original tissue strength
Which factor can hinder the normal healing response and potentially delay recovery?
Balanced collagen turnover
Stable hard callus formation
Anti‑inflammatory drug use
Adequate neovascularization
