Chapter 8 Part 2 Flashcards Preview

Physiology-organization Of The Human Body > Chapter 8 Part 2 > Flashcards

Flashcards in Chapter 8 Part 2 Deck (45):
0

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

Orgin

3

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

Minimus

4

A muscle that stabilizes the origin of a prime mover

Fixators

5

The biceps brachii and triceps brachii muscles function as

Antagonists

6

Muscle that helps the prime mover function more efficiently

Synergists

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

Obicularis

9

Muscles generally move the bone they lie ______ to

Closest

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

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

Groups

19

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

Flexes leg at the knee joint

20

Fixators ___ the origin of the prime mover so that the prime mover can act more efficiently

Stabilizes

21

Smiling

Zygomaticus major

22

Rotates the vertebral column to twist us sideways

External oblique

23

Flexes and rotates the head

Sterncleclomastroide

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 posterior portion contracts
Abducts the arm when the lateral portion contracts
Flexes the arm when the anterior portion contracts

Deltoid

28

Abducts, flexes and extends the arm at the shoulder joint

Deltoid

29

Muscle on the thumb side that flexes the hand

Flexor carpi radials

30

Group that flexes the lower leg and extends the thigh

Hamstrings

31

Arm muscle that flexes arm and forearm

Biceps brachii

32

Works with the soleus to plantarflex the foot

Gastrocernius

33

Group that extends the leg at the knee joint

Quadriceps

34

Well-developed swimming muscle used to extend, adduct, or rotate the arm

Latissimus Dorsi

35

Extends the phalanges

Extensor dicjitorium

36

Boxers use this muscle to move the scapula laterally and forward

Serratus anterior

37

Main muscle that closes the jaw

Masseter

38

The only quadriceps muscle that flexes the thigh and extends the leg

Rectus femoris

39

Puckers the lips

Orbicularis oris

40

Posterior arm muscle that extends the arm at the shoulder

Triceps brachii

41

Wrinkles the skin of the forehead

Frontalis

42

Elevates the clavicle
Depresses or elevates the scapula
Extends the head

Trapezius

43

Flexes and abducts the thigh at the hip joint

Tensor fasciae latae

44

Elevates and retracts the mandible

Temporalis