Musculo Phys

Question 1

As exercise increases, oxygen intake also increases. Why?

Answer 1

restores energy systems

Question 2

Oxygen is needed for recovery of energy systems through _______ ________

Answer 2

oxidative phosphorylation

Question 3

Oxygen assists with the replenishment of _________ _________

Answer 3

creatine phosphate

Question 4

Oxygen assists with the conversion of ______ into _______ and _______

Answer 4

lactate
pyruvate
glucose

Question 5

Oxygen assists with the replenishment of ______ stores

Answer 5

glycogen

Question 6

What are the 3 different types of muscle fibers?

Answer 6

type 1
type 2a
type 2x

Question 7

What differentiates the different muscle fiber types?

Answer 7

the myosin heavy chain types

Question 8

Fiber distribution within muscle and across muscles is/is not uniform

Answer 8

is not

Question 9

Which type of muscle fiber is slow-oxidative?

Answer 9

type 1

Question 10

Which type of muscle fiber is fast-oxidative?

Answer 10

type 2a

Question 11

Which type of muscle fiber is fast-glycolytic?

Answer 11

type 2x

Question 12

Which muscle fiber has high resistance to fatigue?

Answer 12

type 1

Question 13

Which muscle fiber type has medium resistance to fatigue?

Answer 13

type 2a

Question 14

Which muscle fiber type has low resistance to fatigue?

Answer 14

type 2x

Question 15

Which muscle fiber type has lower myosin-ATPase activity?

Answer 15

type 1

Question 16

Fast-oxidative fibers are similar in speed and myosin-ATPase activity as ___________

Answer 16

fast-glycolytic fibers

Question 17

Red fibers are red in color because they have ________

Answer 17

myoglobin

Question 18

Which color of muscle fiber has an abundance of mitochondria?

Answer 18

red

Question 19

Which color of muscle fibers have lots of capillaries and a high myoglobin content?

Answer 19

red

Question 20

Which color of muscle fiber has an abundance of stored glycogen?

Answer 20

white

Question 21

White fibers have few _____ and high _______

Answer 21

mitochondria
glycolytic enzymes

Question 22

Glycolytic fibers need less ________ to function

Answer 22

oxygen

Question 23

Muscle fibers can be altered to suit needs of the animal. What is this called?

Answer 23

conditioning

Question 24

Most animals are born with type ____ muscle fibers that progressively become conditioned to type _______ fibers

Answer 24

2
1

Question 25

There are strain specific conditioning responses where ____ ________ occurs

Answer 25

protein synthesis

Question 26

As the number of contractile units in a muscle increases, the amount of ________ generated increases

Answer 26

power

Question 27

As the number of mitochondria in a muscle increases, the amount of ________ increases

Answer 27

endurance

Question 28

There are over _______ different proteins to convert a single molecule of glucose to ATP

Answer 28

100

Question 29

What are the 2 broad steps of excitation/contraction coupling?

Answer 29

transmit impulse to myocyte release calcium from SR

Question 30

Any movement with finesse will have _______ LMN activity

Answer 30

inverse

Question 31

In order to increase finesse of a muscle, you need to _______ ________

Answer 31

repeat movement

Question 32

Which type of muscle system is best used for quick finesse movements?

Answer 32

spring system

Question 33

Which type of muscle system is best used for powerful movement?

Answer 33

force systemaaaaaaaaaaaaaaaaaa