Muscles Part 1

Question 1

protein in a muscle fiber that forms the thin filaments that slide between filaments of myosin

Answer 1

actin

Question 2

causes muscle contractions, thick filament

Answer 2

myosin

Question 3

three protein subunits and are attached to actin

Answer 3

troponin

Question 4

rod-shaped, occupy the longitudinal grooves of the actin helix

Answer 4

tropomyosin

Question 5

movement from the myofibrils in which actin and myosin filaments slide past one another

Answer 5

contraction

Question 6

sight of functional connection

Answer 6

synapse

Question 7

neurons communicate with the cells that they control by releasing chemicals

Answer 7

neurotransmitters

Question 8

neurons that control effector

Answer 8

motor neurons

Question 9

where a motor neuron con and skeletal muscle meet

Answer 9

neuromuscular junction

Question 10

nuclei and mitochondria are abundant and the sarcoma is extensively folded

Answer 10

motor end plate

Question 11

separates the membrane of the neuron and the membrane of the muscle fiber

Answer 11

synaptic cleft

Question 12

layers of dense connective tissue

Answer 12

fascia

Question 13

attach muscle to bone

Answer 13

tendons

Question 14

fibrous sheets that attach to bone or the coverings of adjacent muscles

Answer 14

aponeuroses

Question 15

surrounds whole muscle

Answer 15

epinysium

Question 16

surround fascicles within muscle

Answer 16

perimysium

Question 17

surrounds muscle fibers(cells) within fascicle

Answer 17

endomysium

Question 18

muscle cell membrane

Answer 18

sacrolema

Question 19

functional unit of muscle contraction

Answer 19

sacromere

Question 20

threadlike structures

Answer 20

myofibrils

Question 21

elastic myofilament

Answer 21

titin

Question 22

cytosplasm in a muscle fiber

Answer 22

sacroplasm

Question 23

thin band

Answer 23

I Band

Question 24

thick and thin band

Answer 24

A Band

Question 25

thick bone

Answer 25

H Zone

Question 26

Disc

Answer 26

Z Line

Question 27

a thickening

Answer 27

M-Line

Question 28

immune system attacks part of the body, 1/3 normal number of acetylcholine receptors, muscle fatigue

Answer 28

myasthenia gravis

Question 29

portion of the muscular network that surrounds muscles

Answer 29

deep fascia

Question 30

portion of muscular network that lies beneath the skin

Answer 30

subcutaneous fascia

Question 31

forms the connective tissue layer of the serous membranes covering organs in various body cavities and lining those cavities

Answer 31

subserous fascia

Question 32

two enlarged portions of the sarcoplasm reticulum

Answer 32

cisternae