muscle tissue Flashcards

(32 cards)

1
Q

fasicle

A

tubes, group of muscle cells

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

muscle cell (fiber)

A

multiple nuclei, striated

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

a bicep is an

A

organ

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

sarcolemma

A

Muscle fiber has a phospholipid bilayer, cell membrane

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

myofibrils (organelle)

A

tubes full of contractile proteins

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

hypertrophy

A

An enlargement of existing muscle
fibers

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

sacroplasm

A

muscle cell cytoplasm and contains organelles like
mitochondria and a large amount of glycogen for energy production and
myoglobin for oxygen storage.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

sarcoplasmic reticulum

A

modified endoplasmic reticulum (stores calcium Ca++)
-neuron triggers SR to release calcium

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

sacromeres

A

basic unit of contraction in skeletal muscle

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

myosin

A

the main component of thick filaments, functions as
a motor protein. (contractile protein)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

actin

A

the main component of thin filaments, connects to the
myosin for the sliding together of the filaments. (contractile protein)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

tropomyosin

A

keeps us from spasms (regulatory protein)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

troponin

A

Protein that sits on top of tropomyosin, calcium binds to (regulatory protein)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

titin

A

elastic protein that helps a sarcomere return to its
resting length after a muscle has contracted or been
stretched. (structural protein)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

dystrophin

A

attaches tubes of contractile proteins to cell membrane

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

main function of skeletal muscle

A

to move bone
Stabilize joints
Produce heat

16
Q

epimysium

A

dense fibrous connective tissue

17
Q

perimysium

A

dense irregular connective tissue

18
Q

Endomysium

A

areolar connective tissue

19
Q

Aponeurosi

A

holding muscle to muscle

20
Q

Muscle origin

A

Attachment site to the bone where it is stationary

21
Q

Muscle insertion

A

muscle attaches to bone that is going to move

22
Q

Catabolize

A

big to small generates heat

23
Q

Conductivity

A

The property of muscle tissue that allows an impulse to travel down the entire length of the cell membrane

24
Botulinum toxin (botox)
paralysis muscles, blocks the ACh synaptic vesicle
25
Myoglobin
supports oxygen in muscles, makes muscle fibers red
26
Slow twitch muscle fibers
aerobic, steady power, endurance
27
Fast twitch fibers
anaerobic, explosive powers, fatigues easily
28
Slow oxidative fibers
use the most oxygen, use ATP slowly (trunk and lower limbs)
29
Fast oxidative fibers
less myoglobin, use atp quickly
30
Fast glycolytic fibers
white fibers, not a lot of ability to use ATP- use it really fast (upper limbs)
31
Compartment syndrome
adductor swells, compressed nerves and blood vessels Fascia needs to be cut to release muscle and swelling