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WorksheetsBio 171 Exam 4 Review
Total questions: 64
Worksheet time: 36mins
The epimysium covers
the fascicle
the muscle fiber
the muscle
the sarcomere
insertion is attachment of muscle tendon to stationary bone
true
false
select all the characteristics of muscle tissue
electrical excitability
conductivity
elasticity
contractility
which muscle tissue types have a single nucleus
cardiac
smooth
skeletal
thin microfilament
actin
myosin
troponin
tropomyosin
a single motor neuron and all of the muscle fibers it innervates
action potential
motor neuron
axon
motor unit
which of the following is an organelle of muscle cells
sarcolemma
myofibril
fascicle
calcium
order from most to least complex
fascicle
muscle fiber
myofibril
muscle
muscle
fasicle
muscle fiber
myofibril
myofibril
muscle fiber
fascicle
muscle
muscle
muscle fiber
fasicle
myofibril
regulatory proteins in muscle fibers
actin
myosin
troponin
tropomyosin
the sarcomere is the smallest unit of muscle structure
true
false
calcium binds to
myosin
tropomyosin
troponin
actin
sustained contraction that lacks even partial relaxation between stimuli
summation
refractory period
latent period
tetanus
Which of the following occurs after the nerve action travels down motor neuron and releases ACH?
actin and myosin form a cross bridge
T tubules trigger sarcoplasmic reticulum to release CA
ACH binds to receptors so sodium channels open causing depolarization
calcium binds to troponin, removing tropomyosin from actin binding sites
Plant poison used on arrows & blowgun darts
botox
curare
acetylcholine
strabismus
curare blocks Ach release and botox blocks Ach receptors
true
false
what is released into the NMJ to stop muscle contraction
acetylcholine
acetylcholinesterase
calcium
sodium
aerobic respiration makes 2 ATP and lactic acid
true
false
characteristics of oxidative-glycolytic fibers
walking
pink
red
medium amount of miitochondria
tons of mitochondria
characteristics of fast glycolytic fibers
red
white
endurance running
weight lifting
tons of mitochondria
characteristics of slow oxidative fibers
red
white
endurance running
give ATP fast
give ATP slow
lacy structure that releases calcium into muscle cell
sarcolemma
sarcoplasm
sarcoplasmic reticulum
sarcomere
cretine-phosphate produces ATP for a 100 meter dash sprint (usain bolt does it in 7 seconds)
true
false
when muscles get bigger, we add more muscle cells
true
false
The duration of contraction and relaxation of smooth muscle is shorter than in skeletal muscle
True
False
time during which muscle tension increases
latent period
contraction period
refractory period
summation period
time lag between when stimulus is applied and when contraction begins
latent period
contraction period
refractory period
summation period
time during which muscle tension decreases, and muscle returns to resting state
latent period
contraction period
relaxation period
summation period
rigor mortis is a state of paralysis caused by botulinum toxin
true
false
prime mover of inspiration
internal intercostals
external intercostals
diaphragm
vastus lateralis
prime mover of elbow flexion
biceps brachii
brachialis
triceps brachii
brachiordialis
the deltoid does which movements
flex arm
extend arm
abduct arm
adduct arm
which of the following muscles are part of the rotator cuff
subscapularis
supraspinatus
infraspinatus
teres minor
serratus anterior is used in punching
true
false
ischiocavernosus aids in erection while bulbospongiosus maintains erection
true
false
order erector spinae from lateral to medial
iliiocostaliis
spinalis
longissimus
longissimus
spinalis
iliiocostaliis
iliiocostaliis
longissimus
spinalis
the external abdominal obliques cause ______ rotation when contracted unilaterally
contralateral
ipsilateral
the internal intercostals are used for _______ and ______ the ribcage
expiration; depress
inspiration; depress
expiration; elevate
inspiration; elevate
A muscle that causes a desired action is the antagonist, and the agonist produces an opposite action
true
false
facial muscles insert into
skin
joints
orbicularis oculi is used for
protruding lips
chewing
closing eye
opening eye
a common site for botox injection is
levator palpebrae superioris
corrugator supercilii
orbicularis oculi
frontalis
the internal abdominal obliques cause ______ rotation when contracted unilaterally
contralateral
ipsilateral
triceps brachii is named for
being the third arm muscle
having two heads and an insertion
being the prime mover of elbow extension
having three heads
the sternocleidomastoid muscle is the prime mover of neck flexion and shakes head no
true
false
when acting unilaterally, the sternocleidomastoid produces ______ rotation
contralateral
ipsilateral
hamstring muscles include
biceps femoris
semitendinosus
semimembranosus
sartorius
the gastrocnemius dorsiflexes the foot
True
False
which of the following apply to the quadriceps muscles
prime mover of knee extension
prime mover of knee flexion
strongest muscles in body
longest muscles in body
most muscles cross at at least one _____
joint
tendon
ligament
nerve
the iliotibial band is a combination of
gluteus minimus
gluteus medius
gluteus maximus
tensor fasciae latae
wrist flexors from medial to lateral
flexor carpi ulnaris palmaris longus
flexor carpi radialis
palmaris longus
flexor carpi radialis
flexor carpi ulnaris
flexor carpi ulnaris
flexor carpi radialis
palmaris longus
palmaris longus
flexor carpi ulnaris
flexor carpi radialis
condition of muscle swelling to the point where healthy fibers and blood vessels are compressed and damaged
rigor mortis
compartment syndrome
muscular hypertrophy
acidosis
hand and eye muscles have _____ fibers
fast glycolytic
slow oxidative
fast oxidative-glycolytic
oxygen-storing reddish pigment that gives skeletal muscles their color
hemoglobin
myoglobin
creatine phosphate
acetylcholine
the subscapularis produces lateral humerus rotation
true
false
titin links actin filaments to a peripheral protein on the inner face of the sarcolemma
true
false
produces backward swing of the arm
trapzeius
biceps bracchii
pronator teres
latissimus dorsi
dorsiflexes and inverts the foot
soleus
tibialis anterior
tibialis posterior
fibularis longus
prime movers of the shoulder joint
pectoralis minor
pectoralis major
serratus anterior
lattisimus dorsi
orbicularis oculi has a ______ arrangement
circular
pennate
convergent
parallel
flexes fingers 2-5
flexor carpi ulnaris
flexor digitorum superficialis
flexor carpi radialis
palmaris longus
used to show expressions of horror
frontalis
platysma
corrugator supercilii
zygomaticus major
muscle fatigue occurs with
decreased blood flow
ion imbalances across the sarcolemma
too much ATP
accumulation of lactic acid
_____ fibers have the largest diameter
Slow oxidative
fast oxidative glycolytic
fast glycolytic
