A&P Exam 3

Question 1

Skeletal Muscles

Answer 1

Causes voluntary movement, we are in control

Question 2

Skeletal muscles structure

Answer 2

Has alot of mitochondria
It has many levels

Question 3

Muscle fibers

Answer 3

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

Question 4

What does fasicle do

Answer 4

Builds into the whole muscles

Question 5

Sarcomere

Answer 5

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

Question 6

Myofibri

Answer 6

Proteins and things that regulate it

Question 7

Sarcolema

Answer 7

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

Question 8

sarcoplasma

Answer 8

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

Question 9

Tryan

Answer 9

specialized ER that has 3 parts

Question 10

sarcoplasmareticular

Answer 10

Regulates calcium moving in and out

Question 11

Terminalsistol

Answer 11

stores a lot of calcium
Muscle recovery

Question 12

T-tubial

Answer 12

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

Question 13

Myosatellite cells

Answer 13

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

Question 14

myoblast

Answer 14

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

Question 15

2 keys protein in sacromere

Answer 15

acten and myensine

Question 16

Active site

Answer 16

acten and myensine combined

Question 17

m-line

Answer 17

middle of Torso

Question 18

H-band

Answer 18

whole trunk/torso
Just myensine
Very thick

Question 19

A-band

Answer 19

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

Question 20

I-band

Answer 20

Just acten is present

Question 21

Z-line

Answer 21

End of sarcomere
It goes in

Question 22

Titin

Answer 22

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

Question 23

Insertion

Answer 23

movement/ free spot

Question 24

SHORT END

Answer 24

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

Question 25

Long end

Answer 25

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

Question 26

Twitch

Answer 26

Muscles goes through full contraction

Question 27

relaxation phase

Answer 27

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

Question 28

motor units

Answer 28

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

Question 29

slow fibers

Answer 29

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

Question 30

fast fibers

Answer 30

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

Question 31

myoglobin

Answer 31

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

Question 32

creotine protein

Answer 32

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

Question 33

resting muscle fibers

Answer 33

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

Question 34

carboloading

Answer 34

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

Question 35

leverage

Answer 35

muscles has somewhere to go

Question 36

yellow bone marrow

Answer 36

storage of lipids, minerals, fats

Question 37

red bone marrow

Answer 37

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

Question 38

hydroxyapatite

Answer 38

alot of different calcium it is tough

Question 39

spongy bone

Answer 39

looks like a sponge more resistant to breaking

Question 40

tribaculate

Answer 40

criss crossing branches located at the end of our joints

Question 41

oseorpoginator

Answer 41

becomes a bone grows into osseousglass

Question 42

osseousglass

Answer 42

secretes organic components of bone grows into osteocytes

Question 43

osteoblast

Answer 43

releases ostoecodes

Question 44

osteocodes

Answer 44

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

Question 45

osteocytes

Answer 45

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

Question 46

osteoclast

Answer 46

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

Question 47

compact bone

Answer 47

concentric lamellas we have many of this

Question 48

lucanae

Answer 48

osteocytes sit in here

Question 49

central canal

Answer 49

blood vessels go through here

Question 50

ephyficites

Answer 50

tends to be spongy bone, end of bone

Question 51

biaphycytes

Answer 51

complex bone

Question 52

metaphycytes

Answer 52

mix of all depends on where you are growing

Question 53

spicules

Answer 53

bone grows out of range

Question 54

appositional

Answer 54

bone grows wider osteoblast grows on the side

Question 55

intramembranous

Answer 55

Things like the skull bone traps blood vessels

Question 56

endochondrial classification

Answer 56

long bones

Question 57

calcification

Answer 57

secretion of calcium to the ground substance adding calcium

Question 58

ossification

Answer 58

makes bone and bone growth

Question 59

primary ossification

Answer 59

spongy bones and blood vessells

Question 60

sutural bones

Answer 60

looks like stitches

Question 61

irregular bones

Answer 61

vertebrae bones

Question 62

short bones

Answer 62

tiny bones

Question 63

long bones

Answer 63

humer, femur, long shaft in the middle

Question 64

sesamoid bone

Answer 64

extra bones knee cap (patella)