Brainscape's Knowledge GenomeTM

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


See full index

A&P 1 > Chapter 10 & 11 > Flashcards

Chapter 10 & 11 Flashcards

1
Q

Zone of overlap is made up of what?

A

Where thick and thin filaments overlap

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

What are the proteins found in a sarcomere?

A

Myosin, actin, titin, troponin and tropomyosin

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

What is the largesst protein in the human body?

A

Titin

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

When contraction occurs the _________ get smaller.

A

H zones and I bands

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

Triad is made up of__________________________

A

One transverse tubue and two terminal cisternae

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

F actin is made up of_____________

A

Two rows of G actin

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

________ is the smallest functional unit of muscle fiber/cell

A

Sarcomere

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

All of these are steps in muscle contraction except _________

  • Excitation
  • Extraction
  • Contraction
  • Excitation-contraction coupling
A

Extraction

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

All of these are layers of connective tissue except _______

  • Perimysium
  • Epimysium
  • Osteomysium
  • Endomysium
A

Osteomysium

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

What are the neurotransmitters inside the vesicles?

A

Acetylcline

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

Dark bands are made up of _________

A

A band

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

When calcium is inside this it is relaxed

A

Terminal cisternae

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

When contraction occurs this increases

A

Zones or areas of overlap

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

This has a head, a tail and when it binds it forms a cross bridge.

A

Thick filament

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

What has an active site that can bind to a thick filament?

A

G actin

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

One tropomyosin contains how many active sites

A

7

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

All of these are functions of muscles except?

  • Movement
  • Excretion
  • Heat production
  • Posture
  • Guards entrances and exits.
A

Excretion

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

All of these are components of thin filaments except

  • F actin
  • Myosin
  • Tropomyosin
  • Nebulin
  • Troponin
A

Myosin

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

What protein holds the tropomyosin molecules in place?

A

Troponin

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

All of these are characteristics of skelteal muscles that permit them to function as they do except?

  • Extensibility
  • Exitability
  • Flexibility
  • Contractibility
A

Flexibility

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

When nerve impulses reach the end of a motor neuron fiber, small vesicles release what substances across the synapitc cleft.

A

Neurotransmitter

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
22
Q

When nerve impulses reach the end of a motor neuron fiber, small vesicles release what substances across the synapitc cleft.

A

Neurotransmitter

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
23
Q

What is another name for cardiac muscle?

A

Striated involuntary

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
24
Q

What causes the inside of muscle cells to become more negative as compared to the ECF?

A

Na/K ATPase pump

25
Q

What allows Na ions to move inside skeletal muscle?

A

nACH

26
Q

What is the result of Na ions entering the skeletal muscle?

A

Muscle becomes Depolarized

Skeletal muscle becomes more positive.

27
Q

Whats another name for skeletal muscle?

A

Striated voluntary

28
Q

Whats another name for smooth muscle?

A

Nonstriated involuntary

29
Q

This surrounds the entire muscle and has a dense layer of collagen fibers

A

Epimysium

30
Q

This divides the muscle into compartments called fasicles

A

Perimysium

31
Q

This surrounds individual muscle cells and inerconnects adjacent muscle fibers

A

Endomysium

32
Q

Muscle fibers are also called

A

Muscle cell

33
Q

Each muscle has two attachment sites called

A

Origin and insertion

34
Q

This is surrounded by enomysium and made up of myofibrils.

A

Muscle fibers

35
Q

This is surrounded by perimysium and made up of muscle fibers

A

Muscle fascicle

36
Q

This is surrounded by epimysium and made up of muscle fascicles

A

Skeletal muscle

37
Q

This is surrounded by sarcoplasmic reticulum and made up of sarcomeres.

A

Myofibrils

38
Q

This is surrounded by sarcoplasmic reticulum and made up of sarcomeres.

A

Myofibrils

39
Q

This is made up of thick and thin filaments

A

sarcomeres

40
Q

The following are all parts of a uscle fiber except

A

sarcomeres

41
Q

Skeletal muscle can reach how many inches in length?

A

12

42
Q

During the embryonic stage, cells called _____ fuse together to form a single muscle fiber

A

Myoblasts

43
Q

This is passageways that carry electrical impulses from sarcolemma into cell sarcoplasm

A

Transverse tubule

44
Q

This is the cell membrane of muscle fiber that surrounds sarcoplasm

A

Sarcolemma

45
Q

This is responsible for skeletal muscle fiber contraction

A

Myofibrils

46
Q

Expanded chambers of sarcoplasmic reticulum are called

A

Terminal cisternae

47
Q

When contraction occurs the width of _______ remain constant

A

A bands

48
Q

A strand of ______ spirals between two rows of G actin holding F actin together

A

Nebulin

49
Q

This protein covers G actins “active site” preventing Actin/Myosin from interacting

A

Tropomyosin

50
Q

This has three subunits that bind to tropomyosin, G actin and calcium molecule

A

Troponin

51
Q

This is the area where nerve and muscle meet

A

Neuromuscular junction

52
Q

A motor neuron sends impulse down azon to end of nerve called _____

A

Synaptic terminal

53
Q

Another name for action potential is

A

Electrical impulse

54
Q

The gap between the muscle and neuron is called

A

Synaptic cleft

55
Q

The section of the muscle that holds the nACH receptors is called the

A

Motor end plate

56
Q

The motor neuron vesicles release ACH into the

A

Synaptic cleft

57
Q

The motor neuron vesicles release ACH into the

A

Synaptic cleft

58
Q

ACH floats across synaptic cleft to the muscle and binds to receptors on outside of muscle called

A

nACH receptors

A&P 1 (6 decks)

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