Anatomy - Muscle System Flashcards Preview

Exam 1/2 Anatomy and Physiology > Anatomy - Muscle System > Flashcards

Flashcards in Anatomy - Muscle System Deck (27):
1

What is the point of contact between the nerve ending and muscle fiber?

Neuromuscular junction

2

What is the chemical that is released when a nerve impulse passes through the neuromuscular junction for muscle contraction?

Acetylcholine

3

_____ is the end of the muscle attached to the more stationary bone.

Origin

4

_____ is the end of the muscle attached to the bone undergoing the greatest movement.

Insertion

5

_______ contract to stabilize.

Synergists

6

______ yields to agonist.

Antagonists

7

The ______ is the muscle that is primarily responsible for a particular movement.

Prime mover

8

There are ___ types of muscle.

3

9

What occurs in an isometric muscle contraction?

The length of the muscle does not change but the amount of tension increases during the contraction process

10

What occurs in an isotonic contraction?

The amount of tension produced by the muscle is constant during contraction but the muscle length changes

11

What are the 3 types of muscle?

Skeletal
Cardiac
Smooth

12

Sternocleidomastoids are located?

From ear to manubrium

13

Trapezius muscles are located?

Shoulders

14

Where are the deltoids located?

Outside of shoulder socket

15

Pectoralis major is located?

Under breasts

16

Rectus abdominis' are located?

6 pack

17

Latissimus is located?

Under arm pits on side

18

Obliques are located?

Posterior to latimiss, on side of hips

19

Gluteus Maximus is?

"Big butt"

20

Gluteus minimus are located?

Upper portion of butt

21

The Rectus femorus are located?

Thigh

22

The quadriceps are located? Also called?

Sides of thigh
Vastus

23

Gastronomius is located?

Calf

24

The sartorial muscle is located?

Outside of hip and inside part of knee

25

Isometric muscles _____ change shape during movement.

Does not

26

Isotonic muscles ______ change shape during movement.

Does; gets shorter

27

Does shivering produce heat?

Yes, but not long term