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Flashcards in Muscles Deck (38):
0

Tissue surrounding the entire muscle that separates f from
Other muscles or bones

Fasciae

1

Tissue around the entire muscle

Epimysium

2

Tissue surrounding the individual fascicals

Permits in

3

Tissue surrounding the individual muscle fiber

Endomysium

4

Adult stem cells repair damaged muscle cells

Myoblast

5

The muscle cell membrane outer most layer

Sarcolemma

6

The muscle cytoplasm

Sarcoplasn

7

The muscle cells ER

Sarcoplasmic reticulum

8

Run perpendicular to the ER to carry materials from fiber to fiber run opposition direction of ER

Transverse tubules

9

Submits of muscle fiber

Myofibrils

10

Sub units of myofibril

Myofilaments

11

Neuron that connect to muscles

Motor neuron

12

Gap between nerve and fiber

Synapse

13

The last part of the motor neuron in the neuromuscular junction

Synaptic terminal

14

The part of the muscle in the neuromuscular justin area

Motor end plate

15

The amount of stimulus needed to release a neurotransmitter

Action potential

16

Neurotransmitter that causes Na ions to enter the fiber

Acetylcholine

17

The gradual build up of tension do to repeated stimuli

Wave summation

18

Maximum tension with brief periods of relaxation

Incomplete tetanus

19

No period of relaxation constant full tension( smooth)

Complete tetanus

20

Contraction ends but low levels of tension remains in muscle fiber

Treppe

21

Tension in the myofibril

Internal tension

22

Tension at the tendon

External tension

23

A motor neuron and all of the fibers it connects to

Motor unit

24

Fewer fiber per neuron- react quicker with less force

Fine motor skills

25

Many fiber per neuron- slower but have more force

Course motor skills

26

Resting tension in a muscle

Muscle tone

27

Length of muscle changes

Isotoic contractions

28

Shortens

Concentric

29

Lengthens

Eccentric

30

Muscles do not change

Isometric contractions

31

Maximum amount of tension produced (determined by number of mitochodria)

Power

32

How long a muscle can perform

Endurance

33

Commin large powerf white have a few mitochondria

Fast

34

Small fatigue slowly red more oxyhemoglobin many mitochondria

Slow

35

Pink pale

Intermediate

36

Muscle growth

Hypertrophy

37

Muscle loss

Atrophy