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64 notecards = 16 pages (4 cards per page)

Viewing:

Muscles and Muscle Tissue

front 1

name the three types of muscles

back 1

smooth, cardiac, skeleton

front 2

location of smooth muscle

back 2

skin, walls of hallow organs

front 3

control of smooth muscle

back 3

involuntary

front 4

branching of smooth muscle

back 4

no

front 5

striations of smooth muscles

back 5

no

front 6

intercalated discs in smooth nucleus

back 6

no

front 7

nucleus location in smooth muscle

back 7

single and central

front 8

cell shape in smooth muscle

back 8

spindle

front 9

location of cardiac muscle

back 9

heart

front 10

control of cardiac muscle

back 10

involuntary

front 11

branching of cardiac muscle

back 11

yes

front 12

striations in cardiac muscle

back 12

yes

front 13

intercalated discs in cardiac muscle

back 13

yes

front 14

nucleus location in cardiac muscle

back 14

single and usually central

front 15

cell shape of cardiac muscle

back 15

branched cylinder

front 16

location of skeleton muscle

back 16

attached to bones

front 17

control of skeleton muscle

back 17

voluntary

front 18

branching in skeleton muscle

back 18

no

front 19

striations in skeleton muscle

back 19

yes

front 20

intercalated disc in skeleton muscle

back 20

no

front 21

nucleus location in skeleton muscle

back 21

multiple and peripheral

front 22

shape of skeleton muscle

back 22

cylinder

front 23

what does myo or sacro mean

back 23

muscles

front 24

what are the special characteristics of muscles

back 24

excitability, contractibility, extensibility, elasticity

front 25

what is excitability in a muscle

back 25

responsiveness to stimuli

front 26

what is contractibility

back 26

able to shorten after stimuli

front 27

what is extensibility

back 27

ability to extend or stretch

front 28

what is elasticity

back 28

ability to recoil back in length after being stretched

front 29

what is the function of muscles

back 29

produce movement, maintain posture and body position, stabilize joints, generate heat, protects the internal organs

front 30

muscular tissue consists of

back 30

nerves, blood vessels, connect tissue sheath, muscles

front 31

what connective tissue sheaths are in muscular tissues

back 31

epimysium, perimysium, endomysium

front 32

what is epimysium

back 32

dense irregular connective tissue that surround the whole muscle

front 33

what is perimysium

back 33

connective tissue that surround the muscle fascicle or muscle bundles

front 34

what is endomysium

back 34

connective tissue that surrounds each individual muscle fiber

front 35

the attachment of origin and insertion of muscle can be __________ or ____________.

back 35

direct or indirect

front 36

what happens in direct attachment

back 36

the epimysium is fused direction to the periosteum or perichondrium

front 37

what happens in indirect attachment

back 37

epimysium extends beyond the muscle either as a rope like tendon or sheet like aponeurosis, which is attached to the bone or surround muscle

front 38

what is the cell membrane of the muscle cell called

back 38

sarcolemma

front 39

what is the cytoplasma of the muscle cell called

back 39

sarcoplasm

front 40

what is the diameter of a muscle cell

back 40

10-100 micrometer

front 41

what is the length of a muscle cell

back 41

up to 30cm

front 42

what does the sarcoplasma contain

back 42

glycosomes and myoglobin

front 43

what are glycosomes

back 43

granules of stored glycogen that provide glucose during muscle cell activity

front 44

what are myoglobin

back 44

red pigment that store oxygen

front 45

each muscle cell contains thousands of rod like ________________ that run ___________

back 45

myofibril, parallel to each other

front 46

how much of the muscle fiber is myofibrils

back 46

80%

front 47

what is the contractile unit of the muscle

back 47

sarcomere

front 48

each sarcomere consists of

back 48

contractile protein

front 49

a contractile protein consists of

back 49

myosin, actin, regulatory, a band, h zone, m line, I band, z line

front 50

what is myosin

back 50

thick myofilament, has a tail and head

front 51

what does the head of a myosin have

back 51

an ATP binding site and an actin binding site

front 52

what is actin

back 52

thin myofilament, two actin protein strands twisted over each other

front 53

what does the actin have

back 53

a myosin binding site

front 54

what is tropomyosin

back 54

regulatory protein, when muscle is relaxed it does not allow the two binding sites to meet

front 55

what is troponin

back 55

keep the tropmyosin in place when the muscle is relaxed

front 56

location of a band

back 56

extends from one end of myosin to the other end of myosin

front 57

location of h zone

back 57

part of sarcomere within the a band where there is only myosin

front 58

location of m line

back 58

part of sarcomere within the a band in the center of the h zone which consists of the myosin myofilaments to each other

front 59

location of I band

back 59

part of sarcomere where we see only actin myofilaments

front 60

location of z line

back 60

part of sarcomere within the I band where adjacent actin myofilimanet are connected together

front 61

where does a sarcomere extend to

back 61

from one z line to the other z line

front 62

which lines do not change size

back 62

m, z, a

front 63

sliding filament theory of muscle contraction

back 63

calcium comes into muscle cell. reposition of regulatory protein. actin binding sites of myosin bind to the myosin binding site of actin. uses energy from ATP and creates a rowing action preformed by myosin.

front 64

the rowing action of myosin results in

back 64

h zone decrease. shortening of I bond, shortening of sarcomere, shortening of myofilament, shortening of muscle fiber, shortening of muscle bundle, shortening of muscle.