Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

anatomy > chapter 10- muscle tissue > Flashcards

chapter 10- muscle tissue Flashcards

1
Q

muscles make up _____ of body mass

A

almost half

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

muscles transfer ATP to

A

directed mechanical energy

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

functions of muscle tissue

A

movement and maintaining posture

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

4 main characteristics

A

excitability, contractibility, extensibility, elasticity

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

nerve endings are found

A

in every muscle cell

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

muscle tissue is vascularized for

A

nutrients, oxygen, energy, and waste removal

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

epimysiym

A

dense irregular connective tissue that surrounds whole tissue

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

perimysium

A

dense regular connective tissue that surrounds bundles of muscle fiber

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

endomysium

A

areolar loose connective tissue that surrounds each muscle fiber

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

cell characteristics

A

large multinucleate cells

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

sarcolemma

A

plasma membrane of muscle cells

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

sarcoplasm

A

cytoplasm of muscle cells

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

sarcoplasmic reticulum

A

smooth ER around myofibrils that store regulate and release calcium

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

Z line

A

anchor for actin

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

M line

A

anchor for myosin

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

sarcomere

A

functional unit of skeletal muscle, z disc to z disc

17
Q

myofilament types

A

myosin and actin

18
Q

myosin

A

thick, rodlike tail with 2 heads that are binding sites for actin and ATP

19
Q

actin

A

thin, binding site for myosin heads, made of G-actin string (2 twisting strands)

20
Q

tropomyosin

A

rod like structure that wraps around actin and blocks it from myosin binding

21
Q

troposin

A

3 polypeptide subunit complex in actin- 1 bound to actin, 1 bound to tropomyosin, 1 bound to calcium

22
Q

steps of sliding filament of contraction

A
  1. myosin binds to actin, forms crossbridge
  2. myosin pulls actin, power stroke
  3. ATP binds to myosin
  4. myosin can detach from actin after ATP binding, then returns to cocked position for next power stroke

anatomy (13 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions