Brainscape's Knowledge GenomeTM

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


See full index

Muscular System > Muscle Characteristics > Flashcards

Muscle Characteristics Flashcards

1
Q

What causes contractions and shortening of muscles

A

Movement of microfilaments

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

Encloses a single muscle fiber

A

Endomysium

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

Wraps around a fascicle of muscle fibers

A

Perimysium

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

Covers the entire skeletal muscle

A

Epimysium

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

On the outside of the epimysium

A

Fascia

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

What can the epimysium blend into

A

Tendons or aponeuroses

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

What are tendons made of

A

Collagen fibers

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

Why do tendons cross joints

A

Toughness and small size

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

What are tendons

A

Cord like structures that attach muscle to bone

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

What are aponeuroses

A

Sheet like structures that attach muscles indirectly

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

Four basic functions of muscles

A

Produce movement
Maintain posture
Stabilize joint
Generate heat

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

All movement come from what

A

Muscle contraction

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

To maintain posture what occurs

A

Tiny adjustments are being made constantly

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

ATP uses energy to make muscles contract and how much of that is released as heat

A

3/4

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

Skeletal muscles account for how much of the body mass

A

20%

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

What type of muscle generate s the most heat

A

Skeletal

17
Q

Specialized plasma membrane

A

Sacrolemma

18
Q

Long organelles inside muscle cells

A

Myofibrils

19
Q

Specialized smooth endoplasmic reticulum

A

Sacroplasmic reticulum

20
Q

What do Myofibrils look like

A

They are aligned in a way that makes them look banded

21
Q

I band

A

Light band

22
Q

I band contains what

A

Thin filaments

23
Q

A band

A

Dark band

24
Q

Dark bands contain what

A

Thick filaments

25
Q

Contractile unit of a muscle fiber

A

Sarcomere

26
Q

Thick filaments

A

Myosin

27
Q

Thin filaments

A

Actin

28
Q

What are thin filaments attached to

A

Z discs

29
Q

What is special about thick filaments

A

Have heads

30
Q

What is the h zone or bare zone

A

Area where ther is no actin filaments

31
Q

What is the function of the SR

A

Stores and releases calcium

32
Q

Location of the SR

A

Surrounds the Myofibrils

33
Q

Other name for a muscle cell

A

Muscle fiber

Muscular System (7 decks)

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