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Flashcards in Muscles Deck (22):
0

Predominantly inhibitory; facilitate lateral inhibition

Renshaw cell

1

Motor neuron fiber innervation

AEGIS (alpha=extrafusal; gamma=intrafusal)

2

Detects muscle length and rate of change in muscle length

Muscle spindle

3

Detects changes in muscles tension

Golgi tendon

4

Plasma membrane that surrounds a muscle fiber

Sarcolemma

5

Invaginations of sarcolemma in close proximity to the terminal cisternse of the sarcoplasmic reticulum

Transerse tubules

6

Sarcoplasmic reticulum

Endoplasmic reticulum surrounding myofibril

7

Functional unit of the muscle

Sarcomere

8

Thick filaments

Myosin

9

Thin filaments

Actin,tropomyosin, troponin

10

Attaches troponin complex to tropomyosin

Troponin T

11

Inhibits actin myosin bindig

Troponin I

12

Calcium binding protein

Troponin C

13

Tethers myosin to Z line

Titin

14

Stabilized sarcolemma and prevents contraction induced rupture

Dystrophin

15

Binds actin to z lines

Activin

16

Binds z lines to sarcolemma

Desmin

17

Acts as a molecular ruler that sets the length of actin during assembly

Nebulin

18

All muscles fibefs innervated by a single motor nerve

Motor unit

19

Two major propioceptors

Muscle spindle, golgi tendon organ

20

Detects changes in muscle tension

Golgi tendon

21

Detecta changes in muscle length and rate of change of muscle length

Muscle spindles