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Flashcards in muscle system Deck (17)
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1
Q

What are the tree primary kinds of muscles?

A

smooth muscles: intestines
cardiac muscles: heart
skeletal muscles: attaches and moves bones

2
Q

Name three purposes of Skeletal Muscles

A

Movement, Posture, Warmth

3
Q

Most important muscle of the neck for rotation?

A

sternocleidomastoid

4
Q

Name the four major muscles of the abdominal group?

A

transverse abdominus (cough), internal oblique (deep tissue), external oblique (exterior tissue), rectus abdominus (6 pack)

5
Q

What muscles are the primary hip flexors?

A

psoas major and iliacus

6
Q

The activity of muscles when they shorten?

A

Contractions

7
Q

What are the two types of muscle activation and how are they different?

A

Isotonic Contraction: when a muscle shortens in length and origin and insertion points draw together

Isometric Contraction: When a muscle strains against resistance but does not change in length

8
Q

When muscles act in mutual opposition to provide stability of bones and joints what is happening?

A

agonist: muscle producing movement
antagonist: producing the opposite movement

9
Q

muscle of the upper back that assists with head movement, shrugs, etc.

A

trapezius

10
Q

widest muscle of the back that allows for the “swimmer stroke”?

A

latissimus dorsi

11
Q

Muscle of the upper chest that flexes, adducts, and medially rotates the arm?

A

pectoralis major

12
Q

prime mover of the upper arm in all directions?

A

deltoid

13
Q

primary mover of the upper arm is opposed by the muscle of the posterior arm called

A

triceps

14
Q

four muscles that stabilize the shoulder joint are?

A

suprasinatus, infraspinatus, teres minor, subscapularis

15
Q

Group of four anterior thigh muscles?

A

quadriceps remoras (rectus femoris, vastus lateralis, vastus medialis, vastus intermedius)

16
Q

Three posterior thigh muscles that flex the knee and extend the leg at the hip?

A

hamstrings (semimembranosus, semitendinosus, bicep femoris)

17
Q

largest skeletal muscle in the body that extends the legs and the him, affects pelvic rock?

A

gluteus maximus