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kenisiology exam 2 > A&P Exam 3 > Flashcards

A&P Exam 3 Flashcards

1
Q

Skeletal Muscles

A

Causes voluntary movement, we are in control

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2
Q

Skeletal muscles structure

A

Has alot of mitochondria
It has many levels

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3
Q

Muscle fibers

A

A group of muscle cells/fibers that has their own nerves that go to specific parts of muscles

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4
Q

What does fasicle do

A

Builds into the whole muscles

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5
Q

Sarcomere

A

Main contraction in muscle fibers
Its is deep inside the muscle
Regulated in region myofribi

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6
Q

Myofibri

A

Proteins and things that regulate it

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7
Q

Sarcolema

A

It is sensitive to electrical changes
Happens outside the cell membrane or plasma membrane

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8
Q

sarcoplasma

A

Happens inside Cytoplasma
It has ion concentrations, which is why we need electrolytes
Can lead to mitochondria conditions (people cant sit up straight)

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9
Q

Tryan

A

specialized ER that has 3 parts

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10
Q

sarcoplasmareticular

A

Regulates calcium moving in and out

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11
Q

Terminalsistol

A

stores a lot of calcium
Muscle recovery

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12
Q

T-tubial

A

Electrical wiring of muscle fibers
communicates signals
How we regulate muscles
How we change calcium movement

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13
Q

Myosatellite cells

A

absorbs area
sees if is damage around muscles and decides to repair

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14
Q

myoblast

A

secretes protein and builds up its muscle
Infuse ameture muscle cells
fusion of myoblast

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15
Q

2 keys protein in sacromere

A

acten and myensine

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16
Q

Active site

A

acten and myensine combined

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17
Q

m-line

A

middle of Torso

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18
Q

H-band

A

whole trunk/torso
Just myensine
Very thick

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19
Q

A-band

A

All proteins
Includes myensine and acten
where contraction is visible (movement)

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20
Q

I-band

A

Just acten is present

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21
Q

Z-line

A

End of sarcomere
It goes in

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22
Q

Titin

A

stretches out very far
makes sure it doesn’t get to small or to large

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23
Q

Insertion

A

movement/ free spot

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24
Q

SHORT END

A

MUSCLES CRUSH
TRYING TO MAKE SURE WE AREN’T GOING TO THE H-BAND, MUSCLES CAN’T CONTRACT
LENGTH OF SARCOMERE

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25
Q

Long end

A

ACTEN BARELY OVERLAPS
NOT MAKING MUCH TENSION
ACTEN CANT SEE MYENSINE CAUSING IT NOT TO CONTRACT.

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26
Q

Twitch

A

Muscles goes through full contraction

27
Q

relaxation phase

A

Muscles cant actively relax which is why it takes a long time.

28
Q

motor units

A

Each nerve talks to many different fasicles
we have motor units to contract in many ways

29
Q

slow fibers

A

takes muscles long time to fatigue
It is dark because of myoglobin
females have this while giving birth

30
Q

fast fibers

A

muscles hit fatigue quickly. needs to relax soon
ex: eyes looking to the side can fatigue quickly
males have more fast fibers

31
Q

myoglobin

A

Holds oxygen in muscles
ex: You dont need to breath more so calves can work

32
Q

creotine protein

A

holds on to extra phosphate
it is less reactive
uses it to store actively during rest

33
Q

resting muscle fibers

A

muscles are not actively contracting
builds up energy storage
take glucose, turns it into glycogen to make atp.

34
Q

carboloading

A

gets storage on kreotine and glycogen allows you to get storage you need.

35
Q

leverage

A

muscles has somewhere to go

36
Q

yellow bone marrow

A

storage of lipids, minerals, fats

37
Q

red bone marrow

A

blood cell production
keeps blood cells safe by being inside the bone

38
Q

hydroxyapatite

A

alot of different calcium
it is tough

39
Q

spongy bone

A

looks like a sponge
more resistant to breaking

40
Q

tribaculate

A

criss crossing branches
located at the end of our joints

41
Q

oseorpoginator

A

becomes a bone
grows into osseousglass

42
Q

osseousglass

A

secretes organic components of bone
grows into osteocytes

43
Q

osteoblast

A

releases ostoecodes

44
Q

osteocodes

A

branches that allows cells to communicate with each other
has gap junctions

45
Q

osteocytes

A

most bone cells contain this
has gap junctions to transport calcium
maturing and monoriting of bone

46
Q

osteoclast

A

develop from immune cells
breaks down bone when we need calcium blood stream

47
Q

compact bone

A

concentric lamellas
we have many of this

48
Q

lucanae

A

osteocytes sit in here

49
Q

central canal

A

blood vessels go through here

50
Q

ephyficites

A

tends to be spongy bone,
end of bone

51
Q

biaphycytes

A

complex bone

52
Q

metaphycytes

A

mix of all
depends on where you are growing

53
Q

spicules

A

bone grows out of range

54
Q

appositional

A

bone grows wider
osteoblast grows on the side

55
Q

intramembranous

A

Things like the skull
bone traps blood vessels

56
Q

endochondrial classification

A

long bones

57
Q

calcification

A

secretion of calcium to the ground substance
adding calcium

58
Q

ossification

A

makes bone and bone growth

59
Q

primary ossification

A

spongy bones and blood vessells

60
Q

sutural bones

A

looks like stitches

61
Q

irregular bones

A

vertebrae bones

62
Q

short bones

A

tiny bones

63
Q

long bones

A

humer, femur, long shaft in the middle

64
Q

sesamoid bone

A

extra bones
knee cap (patella)

kenisiology exam 2 (24 decks)

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