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Flashcards in MUSCLE: Deck (14)
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1

Muscle contraction results from

the sliding together of actin and myosin filaments

2

Each muscle consist of

myofibrils > sarcomeres

3

What must be present for a muscle cell to contract?

atp and calcium

4

Steps in E-C coupling

action potential propagates down from sarcolemma to the T-tubules
releasing calcium ions, which binds to troponin, tropomyosin unblocks
actin and myosin from cross bridges

5

the muscle that executes a given movement is

the prime mover

6

the muscles that produces the opposite movement

the antagonist

7

work in cooperation with the prime mover

synergist

8

reduce the angle at the joint

flexors

9

increase the angle at the joint

extensors

10

draw a limb away from the midline

abductors

11

return the limb back toward the body

adductors

12

QUADRICCEP FEMORIS INCLUDE

rectus femoris
vastus lateralis
vastus intemedius
vastus medialis

13

HAMSTRING GROUP

biceps femoris
semitendinosus
semimembranosus

14

ABDOMINAL MUSCLES:

rectus abdominis
internal oblique
external oblique
transversus abdominus