Muscle Physiology Flashcards
Classification of Muscle Fibers, Functional Characteristics of Muscle Fibers, and Muscle Receptors
1
Q
Aerobic
A
Type I
2
Q
Red
A
Type I
3
Q
Tonic
A
Type I
4
Q
Slow Twitch
A
Type I
5
Q
Slow-oxidative
A
Type I
6
Q
Anaerobic
A
Type II
7
Q
White
A
Type II
8
Q
Phasic
A
Type II
9
Q
Fast Twitch
A
Type II
10
Q
Fast-glycolytic
A
Type II
11
Q
Low Fatigability
A
Type I
12
Q
High Capillary Density
A
Type I
13
Q
High Myoglobin Content
A
Type I
14
Q
Smaller Fibers
A
Type I
15
Q
Extensive Blood Supply
A
Type I
16
Q
Large Amount of Mitochondria
A
Type I
17
Q
Type I Examples
A
Marathon, Swimming
18
Q
High Fatigability
A
Type II
19
Q
Low Capillary Density
A
Type II
20
Q
Low Myoglobin Content
A
Type II
21
Q
Larger Fibers
A
Type II
22
Q
Less Blood Supply
A
Type II
23
Q
Fewer Mitochondria
A
Type II
24
Q
Type II Examples
A
High jump, Sprinting
25
Q
Muscle Spindles
A
- Distributed throughout the belly of the muscle
- Send information to the nervous system about muscle length and/or rate of change to its length
- Important in the control of posture
- Works with gamma system to help control involuntary movements
26
Q
Golgi Tendon Organ
A
- Encapsulated sensory receptors which muscle tendons pass through at the point where the tendon connects to the muscle fibers
- Very sensitive to tension, especially when produced from active muscle contraction
- Transmit information about tension or the rate of change of tension within the muscle
