Chapter 1 And 2 anatomy and muscle physiology

Question 1

What does the axial skeleton consist of?

Answer 1

Skull, rib cage, vertebrae

Question 2

What is an isotonic contraction?

Answer 2

Constant tension as muscle changes length

Question 3

What type of fibers in terms of their oxygen usage are 2A fibers?

Answer 3

Mixed, fast oxidative glycolytic

Question 4

What does epimysium surround?

Answer 4

The outermost layer, surrounds the entire muscle

Question 5

What does the perimysium surround?

Answer 5

One motor unit

Question 6

What does the endomysium surround?

Answer 6

One muscle fiber

Question 7

Describe Henneman size principal

Answer 7

First of all type 1 fibers are contracted, then type 2a fibers, then type 2x

Question 8

What level of muscle anatomy is associated with a motor unit?

Answer 8

Fascicle

Question 9

Sarcomere structure. What are the four regions of a sarcomere?

Answer 9

1. Z disc.
2. I band
3. A band.
4. H zone.

Question 10

What is the acronym for the regions in a sarcomere?

Answer 10

H.A.I.Z

Question 11

What are the two bands in a sarcomere?

Answer 11

A band, I band

Question 12

What is the equation for work?

Answer 12

Force x distance

Question 13

What is the equation for power?

Answer 13

Work / time

Question 14

What are the three phases of muscle contraction?

Answer 14

Latent period, contraction phase, and relaxation phase