WorksheetsChp. 6
Total questions: 19
Worksheet time: 10mins
Which term does NOT describe smooth muscle cell?
nonstriated
visceral
skeletal
involuntary
Muscle tissue has the ability to shorten when adequately stimulated, a characteristic known as ____
irritability
elasticity
contractility
extensibility
The heads of the myosin myofilaments are called ____ when they link the thick and thin filaments together during skeletal muscle contraction
synapses
neuromuscular junctions
cross bridges
motor units
Contractions in which muscles shorten and produce movement are known as ____
resistance exercises
isotonic contractions
twitches
isometric contractions
The point of muscle attachment to an immovable or less movable bone is known as ____
action
insertion
origin
innervation
Muscles that perform opposite actions to one another are termed ____
fixators
synergists
antagonists
prime movers
What creates the alternating light and dark bands that provides the striation pattern on skeletal muscle tissue?
thick filaments and myosin heads
A bands and I bands
Z discs and H zones
sarcoplasm and sacrolemma
H zones and M lines
Which of the following is not a function of the muscular system?
stabilization of joints
production of movements
maintenance of posture
generation of heat
blood cell formation
Which of the following is composed mostly of the protein myosin?
thick filaments
thin filaments
light bands
Z discs
all myofilaments
During skeletal muscle contraction to what do myosin heads bind
thick filaments
myosin filaments
Z discs
the H zone
action filaments
Creatine phosphate (CP) functions within the muscle cell by ___
storing energy that will be transferred to ADP to resynthesize ATP
storing energy that will be transferred to ATP to resynthesize ADP
forming a chemical compound with action
forming a temporary chemical compound with myosin
inducing a conformational change in the myofilaments
Which of the following is an example of an isometric contraction
Pushing against an immovable wall
Shakin the head as to say "no"
Nodding the head as to say "yes"
Rotating the arm
Bending the elbow
Which of the following is a type of isometric exercise in which muscles increase in size and strength?
swimming
dancing
lifting weights
jogging
biking
Which movement is opposite to abduction?
rotation
flexion
adduction
supination
circumduction
While doing jumping jacks during an exercise class your arms and legs move laterally away from the midline of your body This motion is called
circumduction
extension
Adduction
Abduction
FLexion
Which of the following muscles are antagonists?
biceps brachii and triceps brachii
biceps femoris and biceps brachii
gastrocnemius and soleus
vastus medialis and vastus lateralis
masseter and temporalis
what condition results if muscles are not used, such as when immobilized in a cast for healing a broken bone?
lordosis
spina bifida
hypertrophy
atrophy
scoliosis
striated involuntary muscle tissue found in the heart is ____
cardiac muscle
dense regular
smooth muscle
skeletal muscle
dense irregular
what is covered by the endomysium?
an individual muscle cell
an entire muscle
smooth muscle only
fascicles of muscle cells
myofibrils
