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Muscular System Test
What muscle is labeled number 4?
Where do actin and myosin meet?
Muscular System Test
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1
Where do actin and myosin meet?
z-line
m-line
actin filament
sarcomere
2
What muscle is labeled number 4?
Rectus Abdominus
Latissmus Dorsi
External Oblique
Deltoid
3
What muscle is labeled 3?
rectus abdominus
deltoid
pectoralis major
trapezius
4
Which membrane covers a whole muscle?
endomysium
perimysium
fascicle
epimysium
5
What muscle is labeled 1?
Latissimus Dorsi
Trapezius
Deltoid
Soleus
6
Which of the following muscle tissues is non-striated?
smooth and cardiac
cardiac
skeletal
smooth
7
What is labeled number 1?
Muscle Fiber
muscle
Fascicle
Actin
8
Which of the following is not a type of myofilament?
mysoin
actin
myofibril
9
What is labeled number 7? This covers an individual muscle fiber.
muscle
perimysium
endomysium
epimysium
10
What are the opposing muscles called?
synergist
agonist
antagonist
prime mover
11
What is it called when their is a difference between the amount of oxygen available and the amount of oxygen required?
muscle fatigue
intense exercise
aerobic respiration
oxygen debt
12
The attachment of the tendon to the more stationary bone is called the?
insertion
moveable
belly
origin
13
What part of a muscle fiber is long, thin muscle cells, covered by sarcoplasmic reticulum
myofibril
myofilament
muscle fiber
fascicle
14
What part of the muscle is labeled number 9?
actin
muscle fiber
myosin
sarcomere
15
Which of the following is responsible for contracting activity of muscle fibers?
muscle fiber
myofilaments
myofibril
muscle
16
What muscle is labeled 6?
trapezius
biceps brachii
deltoid
triceps
17
Myosin is a thick myofilament.
False
True
18
Muscles are either lengthened or relaxed, with no in-between.
False
True
19
The middle of the muscle is called the insertion point
True
False
20
Which is not a function of the muscular system?
supports your body
maintains posture
stabalizes joints
produces movement
21
Myosin filaments have rounded extensions called heads.
False
True
22
When you become out of breath and your muscles begin to burn during a workout, this is caused by?
lack of calcium
lack of water
lack of oxygen
lack of carbon dioxide
23
What are the muscles called that are doing the action?
syenrgists
prime movers
antagonist
agonist
24
What is labeled number 11?
perimysium
mysoin
actin
myofilament
25
Which muscle tissue(s) are involuntary?
skeletal and smooth
skeletal and cardiac
smooth
cardiac and smooth
26
Muscles are attached to bones by what?
diaphysis
joints
tendons
ligaments
27
Which of the following is not a criteria to name a muscle?
color
size
origin and insertion
shape
28
What is the third step of the sliding filament theory?
acitve site; calcium bones to troponin
Power Stroke; actin is pulled toward m-line ADP and phosphate are released
detachment; new atp attaches to myosin head
Myosin resets and atp splits
29
What muscle is labeled 3?
latissimus dorsi
deltoid
gluteus medias
gluteus maximus
30
Muscle, Fascicle, Muscle Fiber, _________, Myofilament
muscle
myofibril
mysoin
actin
31
Which characteristic of muscles means the ability to shorten when stimulated?
elasticity
excitability
extensibility
contractibility
32
Each time a myosin filament engages with an actin filament, how many ATP molecules are used?
7
5
1
2
33
How many steps are in the Sliding Filament Theory?
4
7
3
5
34
What is formed through cellular respiration?
ADP
Calcium
Phosphate
ATP
35
What is the first step of the sliding filament theory?
Contraction Begins ATP energizes myosin head &converts to ADP and Phosphate
Power Stroke; actin is pulled toward m-line ADP and phosphate are released
Myosin resets and ATP splits
Detachment; New ATP attaches to myosin head
36
What is the 5th step of the sliding filament theory?
Power Stroke; actin is pulled toward m line ADP and phosphate are released
Detachment; New ATP attaches to myosin head
Myosin resets and ATP splits
Active Site; calcium bonds to troponin
37
Which of the following characterisitc means ability to respond to a stimulus?
excitability
extensibility
contractibility
contractibility
38
What is labeled number 3? This memebrane covers the whole muscle.
endomysium
muscle fiber
epimysium
perimysium
39
Which of the four characterisitcs means the ability to recoil or bounce back?
Excitability
Elasticity
Contractibility
Extensibility
40
Membranes covering the muscles fibers allow them to _____________ and keeps them from bursting.
slide
contract
generate heat
lengthen
