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Lab Exam 3 Notecards
Muscle Physiology, Endocrine, Blood, Heart, Circulatory System
4
Anatomy
Undergraduate 2
04/14/2010

Additional Anatomy Flashcards

 


 

Cards

Term
1. Motor Unit
2. Relationship between motor unit size and percision
3. Relationship between motor units and muscle tone
4. Neuromuscular Junctions
Definition
1. One motor neuron and all muscle fibers connecting
1. Range 10-2000

2. Smaller unit = precision movements
2. Larger unit = gross movements

3. More activated motor units = more tone

4. Where motor neuron connects to muscle fiber
Term

Muscle Twitch

1. Latent Period

2. Contraction

3. Relaxation

Definition

1. Time between stimulus and muscle contraction

 

2. Shortening of muscle fiber

 

3. AChE deactivates ACh--Ca+ ions back to sarcoplasmic reticulum

Term

Muscle Tension-Relationship with...

1. Frequency of Stimulation

2. Number of Motor Neurons

3. Degree of Muscle Stretch

Definition

1. Increased stimulus = increased tension

 

2.

 

3.

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