Chapter 8 Part II Flashcards Preview

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Flashcards in Chapter 8 Part II Deck (45)
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Part of a muscle name referring to fibers parallel to midline

Rectus

1

The fleshy portion of a muscle

Belly

2

The end of a muscle attached to the stationary bone

Origin

3

Part of a muscle name referring to the smallest of a set of muscles

Minor

4

A muscle that stabilizes the origin of a prime mover

Fixator

5

The the biceps brachii and triceps brachii muscles function as _____.

Antagonists

6

Muscles that helps the prime mover function more efficiently

Synergist

7

Part of a muscle name referring to a two-headed origin

Biceps

8

Part of a muscle name referring to a muscle with a circular shape

Orbicularis

9

Muscles generally move the none they lie ____ to.

Proximal

10

In order to move a bone, a muscle must have its _____ on that bone.

Insertion

11

Part of a muscle name referring to fibers perpendicular to midline

Transverse

12

Muscles of the back (posterior trunk) function to do what action to the head trunk, and upper arm?

Extend

13

A muscle that produces an effect opposite of the prime mover

Antagonist

14

Part of a muscle name referring to the largest of a set of muscles

Maximus

15

The end of a muscle attached to the movable bone

Insertion

16

Part of a muscle name referring to a muscle with a triangular shape

Deltoid

17

Part of a muscle name referring to a three-headed origin

Triceps

18

Ost movements occur due to the contraction of a _____ of muscles

Group

19

The hamstring muscles function to do what action to the lower leg?

Flex

20

Fixates _____ the origin of the prime mover so that they prime mover can act more efficiently.

Stabilize

21

Smiling

Zygomaticus major

22

Rotates the vertebral column to twist us sideways.

External oblique

23

Flexes and rotates the head

Sternocleidomastoid

24

Used in crossing our legs--flexes the leg at the knee joint and abducts and laterally rotates the thigh at the hip joint.

Sartorius

25

Together with the adductor group, adducts the thigh at the hip joint

Gracilis

26

Closes the eyelids

Orbicularis oculi

27

Extends the arm when the posterior portion contracts, abducts the arm when the lateral portion contracts, and flexes the arm when the anterior portion contracts

Deltoid

28

Abducts, flexes, or extends the arm at the shoulder joint.

Deltoid

29

Muscle in the thumb side that flexes the hand

Flexor carpi radials