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WorksheetsFINAL
Total questions: 112
Worksheet time: 56mins
Blood vessels, nerves, ureters, and lymphatic vessels all enter/exit the kidney at the __________.
renal capsule
nephron
renal pyramid
hilum
One renal pyramid and its overlying cortex constitute one __________.
lobule
lobe
capsule
glomerulus
The __________ carries blood directly into the glomerulus.
afferent arteriole
renal artery
cortical radiate artery
efferent arteriole
A renal pyramid voids urine into the __________.
major calyx
renal papilla
minor calyx
ureter
The _____________ are blood vessels that surround the renal tubules.
peritubular capillaries
radiate arteries
renal arteries
radiate arteries
Blood plasma is filtered in the __________.
renal tubule
renal column
renal corpuscle
minor calyx
Glucose and amino acids are reabsorbed from the glomerular filtrate by the __________.
renal corpuscle
proximal convoluted tubule
glomerular capillaries
collecting duct
In a healthy kidney, very little __________is filtered by the glomerulus.
vitamins
protein
electrolytes
amino acids
Which of the following would reduce the glomerular filtration rate?
Vasoconstriction of the efferent arteriole
Stretching the afferent arteriole
Sympathetic stimulation
An increase in osmotic pressure in the glomerular capsule
In response to a drop in overall hydrostatic blood pressure, __________ stimulates constriction of the glomerular inlet and even greater constriction of the outlet.
sodium chloride
angiotensin II
calcitrol
cortisol
Renin converts angiotensinogen, released from the __________, into angiotensin I.
lungs
liver
heart
spleen
The __________ are primarily responsible for maintaining the salinity of the renal medulla versus the renal cortex.
corpuscles
collecting ducts
distal convoluted tubules
nephron loops
Which of the following is a direct result of antidiuretic hormone?
Increased urine acidity
Decreased urine volume
Increased urine volume
Increased urine
salinity
Hormones secreted by the heart, called __________, act to increase the excretion of salt and water in the urine, which decreases blood volume and pressure.
aldosterone
natriuretic peptides
angiotensin I
angiotensinII
Which renal structure is responsible for producing hypertonic urine by reabsorbing water while allowing metabolic wastes and NaCl to pass through?
Collecting duct
Distal convoluted tubule
Proximal convoluted tubule
Glomerulus
The urine is most likely to be hypotonic when _________.
a person is lost and deprived of drinking water
the body's water volume is high
the body's pH is slow
the output of natriuretic peptides is high
A drop in blood pressure stimulates the kidneys to secrete___________.
aldosterone
antidiuretic hormone
renin
angiotensin II
The average adult produces approximately __________ of urine per day.
1 to 2 L
500 to 1000mL
8 to 10 L
5 L
Excessive urine output is called _________
oliguria
diuresis
hematuria
uremia
Contraction of the __________ stimulates voiding of the urine.
diaphragm
detrusor
urethra
ureter
Backflow of urine from the urinary bladder into the ureters is prevented by __________.
the ureteral muscles
valves
the urethra
the detrusor muscle
The ___________ reflex stimulates the voiding of urine.
micturition
urination
tendon
ureteral
Water output is significantly controlled through variations in ____________.
metabolic water
urine volume
drinking habits
sweating
When blood volume and pressure are too high ____________.
ADH release is inhibited
the kidneys produce less urine
renal tubules reabsorb more sodium
ADH release is stimulated
Hypernatremia tends to cause all of the following except __________.
a reduction in plasma volume
interstitial fluid accumulation
edema
hypertension
The mechanism of stabilizing the glomerular filtration rate (GFR) based on the tendency of smooth muscle to contract when stretched is known as __________.
renal autoregulation
sympathetic control
the renin-angiotensin-aldosterone mechanism
The major chemical buffers of the body are ___________.
bicarbonate, phosphates, and proteins
bicarbonate, nucleic acids, and proteins
urinary and respiratory
urinary and digestive
Angiotensin-converting enzyme is found only in the kidneys and converts angiotensinogen to angiotensin I.
true
false
The ureters pass anterior to the bladder and enter it from below.
true
false
It is normal to find some glucose in the urine.
true
false
Aldosterone increases salt retention, which causes water retention.
true
false
Glomerular filtration occurs when blood plasma leaves the glomerulus and enters the glomerular capsule.
true
false
The __________ is a muscular tube that carries urine from the kidney to the urinary bladder.
major calyx
renal pelvis
ureter
urethra
Which of the following is true of antidiuretic hormone?
DH stimulate shypothalamic osmoreceptors.
ADH targets the cerebral cortex.
ADH inhibits salivation and thirst.
ADH promotes water conservation.
Which of the following is true regarding aldosterone?
Aldosterone reduces Na + reabsorption and K + secretion.
Aldosterone causes the urine to be more diluted.
Aldosterone increases Na + reabsorption and K + secretion.
Aldosterone increases both Na + and K + reabsorption.
The process of separating wastes from the body fluids and eliminating them is called __________.
excretion
regulation
salivation
diuresis
The ability to maintain internal stability is called
reproduction.
homeostasis.
development.
thermodynamics.
The study of the structure and function of the hormone-producing glands is called
comparative physiology.
endocrinology.
exploratory physiology.
pathology.
When writing his/her notes, a doctor mistakenly misspells the intended word "ileum" as "ilium", stating "examine the ilium further". What is the possible outcome of this mistake?
The next practitioner may mistakenly examine the hip when he/she should have been examining the intestines.
The practitioner may mistakenly examine the knee when he/she should have been examining the lungs.
It's just a spelling error, and it's obvious what the doctor meant.
The practitioner may mistakenly examine the lungs when he/she should have been examining the knee.
When examining a patient, a nurse notices that the right kidney is not in its usual location. This most likely means
the patient definitely has a kidney pathology.
the patient may simply have an anatomical variation.
the nurse is not good at palpation.
the patient is faking an injury.
When a woman is giving birth, the head of the baby pushes against her cervix and stimulates release of the hormone oxytocin. Oxytocin travels in the blood and stimulates the uterus to contract. Labor contractions become more and more intense until the baby is expelled. This is an example of
positive feedback.
integration control.
negative feedback
dynamic equilibrium.
On average the resting heart rate of a healthy, normal adult human is between 70 and 80 beats per minute (bpm). A marathon runner may have a resting heart rate of 55 bpm. This is an example of
an exercise-induced physiological variation.
a pathological physiological variation.
a normal anatomical variation.
a pathological anatomical variation.
Blood glucose concentration rises after a meal and stimulates release of the hormone insulin. Insulin travels in the blood and stimulates body cells to uptake glucose from the bloodstream. This reduces blood glucose concentration. This is an example of
negative feedback.
dynamic equilibrium.
positive feedback.
set point adjustment.
Which one of the following is not in the correct anatomical position?
Face and eyes facing forward
Palms facing posteriorly
Feet flat on the floor
Arms at sides
The right shoulder is ______ and __________ to the umbilical region.
superior; lateral
inferior; medial
inferior; lateral
posterior; lateral
The most superior segment of the upper limb is called
the brachial region.
the manual region.
the antebrachial region.
the digits.
The trachea is _____ to the esophagus.
posterior
anterior
dorsal
inferior
The plane that passes vertically through the body or an organ and divides it into anterior and posterior portions is called the _____ plane.
median
frontal
transverse
oblique
This system breaks down food and absorbs nutrients.
Digestive
Circulatory
Lymphatic
Urinary
The ________ is an organ directly associated with both the _____ systems.
pancreas; digestive and endocrine
small intestine; digestive and integumentary
stomach; digestive and reproductive
testis; male reproductive and urinary
This system provides protection, water retention, thermoregulation, and vitamin D production
Integumentary system
Muscular system
Excretory system
Skeletal system
This system regulates blood volume and pressure, stimulates red blood cell formation, and controls fluid, electrolyte, and acid-base balance.
Circulatory system
Urinary system
Reproductive system
Digestive system
The abdominopelvic cavity contains a moist serous membrane called the
meninges.
mediastinum.
peritoneum.
pleura.
The brain and the spinal cord are protected by
mucous membranes.
the meninges.
a visceral layer.
a parietal layer.
The _______ cavity contains the lungs, which are enfolded in the _____.
thoracic; pleurae
thoracic; peritoneum
abdominopelvic; pleurae
abdominopelvic; peritoneum
Which of the following lists examples of body structures from the simplest to the most complex?
protein, mitochondrion, adipocyte (fat cell), connective tissue, stomach
mitochondrion, connective tissue, stomach, protein, adipocyte (fat cell)
protein, adipocyte (fat cell), stomach, connective tissue, mitochondrion
protein, stomach, connective tissue, adipocyte (fat cell), mitochondrion
A(n) _____________ is a group of similar cells and their intercellular materials in a discrete region of an organ performing a specific function.
tissue
organism
organelle
organ system
_________________ are the simplest body structures considered alive.
Cells
Organelles
Organs
Molecules
The heart occupies a space called the pleural cavity.
true
false
Histology is the study of structures that can be observed without a magnifying lens.
true
false
Negative feedback is a self-amplifying chain of events that tend to produce rapid change in the body.
true
false
Blood has a pH ranging from 7.35 to 7.45. Slight deviations from this can cause major problems oreven death. You are doing an intense workout, and your skeletal muscle cells are producing metabolic acids such as lactic acid. Your blood pH does not drop significantly in spite of the metabolic acids released into the blood. You maintain a constant blood pH because
the body contains chemicals called buffers that resist changes in pH.
metabolic acids are neutralized in muscle cells before being released into the blood.
endothelial cells secrete excess H + to prevent a decrease in pH.
metabolic bases are produced at the same rate by muscle cells to neutralize the acids.
Consider oxygen, which has an atomic number of 8 and an atomic mass of 16. How many valence electrons does it have?
6
8
2
4
Glucose is broken down in most of your cells to form carbon dioxide, oxygen, and the energy currency of the cell called ATP. This type of reaction is both _________ and ___________.
catabolic; endergonic
anabolic; endergonic
catabolic; exergonic
anabolic; exergonic
The most relevant form of energy in human physiology is the energy stored in
the chemical bonds of organic molecules.
radioisotopes.
free radicals with an odd number of electrons.
Van der Waals forces
Enzymes are specific to substrates because of the shape of their
active sites.
terminal amino acids.
alpha chain.
receptors.
Nucleic acids are ______ of ______.
monomers; ATP
polymers; DNA
polymers; nucleotides
molecules; monosaccharides
When ATP breaks down to ADP, potential energy stored in bonds is released. This energy stored in bonds is __________ energy.
kinetic
chemical
heat
electrical
The opposite of a dehydration synthesis is hydrolysis.
true
false
In a synthesis reaction, new covalent bonds are formed between smaller molecules to form a larger molecule.
true
false
What type of bond attracts one water molecule to another?
A hydrogen bond
An ionic bond
A peptide bond
A covalent bond
Ionic bonds break apart in water more easily than covalent bonds.
true
false
Any chemical reaction in which an atom gains electrons is called:
reduction.
oxidation.
condensation.
hydrolysis.
A solution that resists a change in pH when acid or base is added to it is
a buffer.
a colloid.
a reducing agent.
an oxidizing agent
A solution with pH 4 has ______ the H + concentration of a solution with pH 8.
twice
1/10,000
10,000 times
4 times
Blood pH is approximately 7.4, which is slightly acidic.
true
false
Calcitriol is the most active form of _____________.
Phosporus
Vitamin D
Calcium
Vitamin K
The result of calcium and phosphate levels in blood that are too low for normal deposition is a softness of the bones called ___________ in children and ___________ in adults.
Osteomalacia; Rickets
Rickets; Osteomalacia
A decrease in the mineral content of bone can cause the bone to soften.
true
false
___________ gives bone the ability to resist compression, whereas ____________ resists tension.
Calcium; Phosphorus
Minerals; Callagen
Collagen; minerals
Collagen; Matrix
_______________ are common in compact bone but rarely seen in spongy bone.
lamellae
Central canals
Osteocytes
Lacunae
The cells that deposit bone matrix are called ______________
Osteoblasts
Osteocytes
Osteoclasts
Osteons
Calcium plays an essential role in all of the following except
Muscle contraction
blood clotting
DNA synthesis
Exocytosis
Due to vertebral compression fractures, osteoporosis often leads to an exaggerated thoracic spinal curvature.
true
false
Intramembranous ossification is common in children, whereas endochondral ossification is typical in adults.
true
false
In endochondral ossification, the precursor connective tissue is _____________, which is replaced by bone
fibrocartilage
soft embryonic connective tissue
hyaline cartilage
transitional epithelium
Intramembranous ossification is responsible for the formation of the
short bones of the ankle
flat bones of the skull
long bones of the limbs
short bones of the wrist
The antagonist for the triceps brachii is the
biceps brachii
supinator
teres minor
anconeus
All of the following are functions of muscles except
stability
secretion
control of openings
respiration
Which of the following activities would increase a muscle's resistance to fatigue?
Bench pressing
Training for a marathon
Driving a golf ball
Sprinting
In skeletal muscle, alternating light and dark bands are termed
strabismus
striations
treppe
myoblasts
The training regimen of a competitive weight lifter is designed partly to
convert certain parallel muscles into stronger pennate muscles
increase the size of his motor units
lower the threshold for muscle excitation
increase the average number of myofibrils per muscle fiber
The neurotransmitter that is excitatory for skeletal muscles is called
norepinephrine
acetylcholine
acetylcholinesterase
dopamine
The absence or inhibition of acetylcholinesterase at a synapse would lead to which of the following?
Muscle wasting
Tetanus
Flaccid paralysis
Numbness
Which muscle type depends solely on the sarcoplasmic reticulum as its calcium source?
Skeletal muscle
Skeletal and smooth muscle
Cardiac muscle
Smooth and cardiac muscle
The longest muscle in the human body is the:
iliopsoas
sartorius
semitendinosus
semimembranosus
Release of acetylcholine at a neuromuscular junction
increases permeability of the sarcolemma to Na +
overrides the inhibitory effect of acetylcholinesterase
decreases the positive charge on the sarcolemma
decreases the release of Ca 2+ from the sarcoplasmic reticulum
Which of the following does not contribute to a person's tolerance to prolonged exercise?
The speed with which acetylcholinesterase catalyzes reactions
The number of mitochondria in the muscle cell
Physical conditioning (improving maximal rate of oxygen uptake)
The amount of glucose stored in the muscle
Which muscle(s) can contract without the need for nervous stimulation?
Skeletal muscle
Smooth and cardiac muscle
Skeletal, smooth, and cardiac muscle
Cardiac muscle
To stimulate muscle contraction, acetylcholine is released from the ___________ into the synaptic cleft.
axon terminal
sarcolemma
junctional folds
terminal cisterns
Aerobic respiration produces approximately _____ more ATPs than anaerobic fermentation.
24
100
28
48
Which of the following would be caused by contraction of smooth muscle?
Release of urine from the urinary bladder
Elevating the eyebrows
Deep inspiration
Blinking the eyelids
Michael Jordan was arguably the best player in professional basketball history. Scientifically one would expect him to have highly developed
red muscle
white muscle
slow-twitch fibers
Exposure to Clostridium tetani causes continuous release of acetylcholine. What effect does this have on smooth muscle?
Flaccid paralysis
No effect
Lockjaw
Spastic paralysis
Drugs called calcium channel blockers may be used to lower blood pressure by causing arteries to vasodilate. These drugs
prevent calcium from entering smooth muscle, thus allowing the muscle to relax
prevent calcium from entering the sarcoplasmic reticulum of smooth muscle
prevent calcium from exiting the sarcoplasmic reticulum in skeletal muscle
After taking their wedding vows, a bride and groom often ceremonially kiss using which of the following muscles before walking away from the altar?
Orbicularisoris
Depressor angulioris
Quadricepsfemoris
Platysma
Calcitriol is the most active form of _____________.
Calcium
Vitamin D
Vitamin K
Phosporus
Bone cells called ___________ have the greatest number of lysosomes.
Osteoclats
Stem Cells
Osteoblasts
Osteocytes
A crista ampullaris is found within each of the ____________.
ampullae of the semicircular ducts
scalae
maculae
vestibules
A patient's blood is found to be abnormally viscous. This could be due to abnormally high ___________ concentration, as this component is the main contributor to blood viscosity.
albumin
erythrocyte
sodium
fibrin
Erythrocytes transport oxygen and
defend the body against pathogens.
transport some carbon dioxide.
initiate blood clotting
regulate erythropoiesis.
Most oxygen is transported bound to
heme groups in hemoglobin
the plasma membrane of erythrocyte
Alpha chains in hemoglobin
delta chains in hemoglobin
