Brainscape's Knowledge GenomeTM

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


See full index

Biol 2401 A&P > Muscular System > Flashcards

Muscular System Flashcards

1
Q

What is the primary function of the muscular system?

A

The primary function of the muscular system is to facilitate movement of the body.

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

True or False: Skeletal muscles are under voluntary control.

A

True

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

What type of muscle is found in the heart?

A

Cardiac muscle

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

Fill in the blank: The three types of muscle tissue are __________, smooth, and cardiac.

A

skeletal

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

What is the term for the arrangement of muscle fibers in a muscle?

A

Fascicle arrangement

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

Name one type of fascicle arrangement.

A

Parallel, pennate, circular, or convergent

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

True or False: Smooth muscle is found in the walls of hollow organs.

A

True

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

What does the term ‘origin’ refer to in muscle anatomy?

A

The origin is the attachment point of a muscle that remains relatively fixed during contraction.

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

What is the ‘insertion’ of a muscle?

A

The insertion is the attachment point of a muscle that moves during contraction.

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

Which type of muscle fiber arrangement allows for the greatest range of motion?

A

Parallel

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

What is the primary role of tendons?

A

Tendons connect muscles to bones.

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

Fill in the blank: The __________ of a muscle is the part that contracts and shortens.

A

belly

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

True or False: Pennate muscles have fibers that run parallel to the muscle’s long axis.

A

False

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

What is the function of the muscular system in maintaining posture?

A

To stabilize the body and maintain its position against gravity.

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

What is the term for the angle of pull of a muscle?

A

Line of action

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

What type of muscle arrangement is characterized by fibers that are short and attach to a central tendon?

A

Pennate

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

True or False: The fascicle arrangement can affect the strength and range of motion of a muscle.

A

True

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

What are circular muscles also known as?

A

Sphincters

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

Fill in the blank: The __________ system works closely with the skeletal system to produce movement.

A

muscular

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

What is a common example of a convergent muscle?

A

Pectoralis major

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

What does ‘muscle tone’ refer to?

A

The continuous and passive partial contraction of the muscles.

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

True or False: All muscles can contract and relax.

A

True

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

Name a characteristic of smooth muscle.

A

Involuntary control and non-striated appearance.

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

What type of muscle is responsible for voluntary movements?

A

Skeletal muscle

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
25
Q

Fill in the blank: Muscles work in __________ to create movement.

A

pairs

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
26
Q

What is the term for muscles that oppose the action of another muscle?

A

Antagonists

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
27
Q

What is the role of synergist muscles?

A

To assist the prime mover in performing a movement.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
28
Q

True or False: All skeletal muscles are striated.

A

True

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
29
Q

What is the function of the diaphragm in the muscular system?

A

To facilitate breathing by contracting and expanding the thoracic cavity.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
30
Q

Fill in the blank: The __________ is the muscle that primarily performs a specific movement.

A

agonist

31
Q

What is the role of the muscular system in thermoregulation?

A

Muscles generate heat through contraction, helping to maintain body temperature.

32
Q

What is the term for a muscle that is responsible for the majority of a specific movement?

A

Prime mover

33
Q

True or False: Muscle fibers can change their type based on training.

A

True

34
Q

What describes a muscle’s ability to stretch and return to its original shape?

A

Elasticity

35
Q

Fill in the blank: The __________ is the connective tissue that surrounds an entire muscle.

A

epimysium

36
Q

What are the three connective tissue layers associated with muscles?

A

Epimysium, perimysium, and endomysium.

37
Q

True or False: Fascicles are bundles of muscle fibers.

A

True

38
Q

What is the primary role of the perimysium in muscle structure?

A

To provide support and protection to the fascicles.

39
Q

What is a key feature of cardiac muscle?

A

It is striated and involuntary.

40
Q

Fill in the blank: The __________ system is responsible for movement and posture.

A

muscular

41
Q

What is a lever?

A

A lever is a simple machine that consists of a rigid beam pivoted at a fixed point, known as the fulcrum.

42
Q

True or False: Levers can only move objects in a straight line.

A

False

43
Q

Fill in the blank: The three classes of levers are first-class, second-class, and _____ class.

A

third

44
Q

Which class of lever has the fulcrum located between the effort and the load?

A

First-class lever

45
Q

What is the mechanical advantage of a lever?

A

The mechanical advantage of a lever is the ratio of the output force to the input force.

46
Q

Multiple Choice: In a second-class lever, where is the load located?

A

A) Between the fulcrum and the effort

47
Q

Give an example of a first-class lever.

A

A seesaw or a pair of scissors.

48
Q

True or False: The longer the arm of the lever, the greater the mechanical advantage.

A

True

49
Q

What is the role of the fulcrum in a lever system?

A

The fulcrum acts as the pivot point around which the lever rotates.

50
Q

Fill in the blank: In a third-class lever, the effort is applied _____ the load.

A

between

51
Q

What does the term ‘longus’ refer to in muscle nomenclature?

A

It refers to a muscle that is long in length.

52
Q

What does the term ‘brevis’ indicate in muscle terminology?

A

It indicates a muscle that is short in length.

53
Q

True or False: The term ‘vastus’ means small.

A

False.

54
Q

Fill in the blank: The muscle name ‘pectoralis major’ suggests a _____ size muscle located in the chest.

A

large

55
Q

What is the primary difference between ‘longus’ and ‘brevis’ muscles?

A

The primary difference is their length; ‘longus’ muscles are longer, while ‘brevis’ muscles are shorter.

56
Q

Which muscle term would you expect to describe a muscle that is both long and thin?

A

Longus.

57
Q

Multiple Choice: What does the term ‘minor’ in muscle nomenclature generally refer to? A) Large B) Small C) Medium

A

B) Small

58
Q

What does the prefix ‘rectus’ imply about the muscle’s orientation?

A

It implies that the muscle fibers run straight.

59
Q

True or False: The term ‘teres’ means cylindrical.

A

True.

60
Q

Fill in the blank: The term ‘oblique’ refers to muscles that run at a _____ angle to the body’s midline.

A

slanting

61
Q

What is the meaning of the term ‘latissimus’?

A

It means the widest.

62
Q

Multiple Choice: Which of the following terms describes a large muscle? A) Minor B) Major C) Brevis

A

B) Major

63
Q

What does ‘quadratus’ refer to in muscle terminology?

A

It refers to a muscle that is square or rectangular in shape.

64
Q

True or False: The term ‘sartorius’ refers to a muscle that is named for its function in sewing.

A

True.

65
Q

What does ‘biceps’ indicate about a muscle?

A

It indicates that the muscle has two heads.

66
Q

Fill in the blank: ‘Triceps’ indicates a muscle with _____ heads.

A

three

67
Q

What does the term ‘flexor’ refer to?

A

It refers to a muscle that decreases the angle at a joint.

68
Q

Multiple Choice: Which of the following terms means ‘straight’? A) Rectus B) Oblique C) Longus

A

A) Rectus

69
Q

What does the term ‘adductor’ imply about a muscle’s function?

A

It implies that the muscle brings a limb closer to the midline.

70
Q

True or False: The term ‘extensor’ refers to a muscle that increases the angle at a joint.

A

True.

71
Q

Flexor is?

A

A) bending B) straightening C) moving away from midline

72
Q

Extensor is _____

A

Straightening

73
Q

Pronator means _____

A

Rotating palm down

Biol 2401 A&P (1 decks)

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