Brainscape's Knowledge GenomeTM

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


See full index

Unit 3 > Muscular System > Flashcards

Muscular System Flashcards

1
Q

Muscular system

A

All voluntary controlled muscles of the body

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

Origin

A

Attachment of a muscle’s tendon to a stationary bone
Proximal

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

Insertion

A

Attachment of muscle’s other tendon to a movable bone
Distal

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

Action of muscle

A

Main movements that occur when muscle contracts

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

Reverse muscle action

A

During specific movements of the body the actions are reversed
The position of origin and insertion are flipped

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

Levers

A

Rigid structure that can move around a fixed point called a fulcrum

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

Effort

A

Causes movement
Force exerted by muscular contraction

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

Load/resistance

A

Opposes movement
Weight of body part moved or resistance body is trying to overcome

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

Mechanical advantage

A

Load is closer to fulcrum and effort is further from fulcrum, this results in small effort required to move a large load over a small distance

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

Mechanical disadvantage

A

Load is further from fulcrum and effort is applied closer to fulcrum, thus a relatively large effort is required to move small load

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

First class lever

A

Fulcrum is between load and effort
Mechanical advantage or disadvantage

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

2nd class lever

A

Load is between fulcrum and effort
Always mechanical advantage

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

3rd class lever

A

Effort between fulcrum and load
Most common in body
Always mechanical disadvantage

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

Fascicles

A

All muscle fibers are parallel to one another

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

Parallel

A

Fascicles are parallel to longitudinal axis of muscle and terminate at either end in flat tendons

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

Fusiform

A

Fascicles are nearly parallel to longitudinal axis of muscle and terminate in flat tendons

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

Circular

A

Fascicles are in concentric circular arrangement, form sphincter muscles that enclose orifice

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

Triangular

A

Fascicles spread over broad area converge at thick tendons

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

Pennate

A

Short fascicles in relation to total muscle length
Tendons extend nearly entire length of muscle

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

Unipennate

A

Fascicles arranged on only 1 side of tendon

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

Bipennate

A

Fascicles arranged on both sides of centrally positioned tendons

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

Multipennate

A

Fascicles attach obliquely from many directions to several tendons

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

Prime mover

A

Aka agonist
Contracts to cause action

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

Antagonist

A

Stretches and yields to effects of prime mover

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

Fixators

A

Muscle groups that stabilize origin of prime movers so they can act more efficiently

26
Q

Compartment

A

(In limbs)
Group of skeletal muscles, their associated blood vessels and associated nerves all of which have a common function

27
Q

Direction

A

Orientation of muscle fascicles relative to body line

28
Q

Rectus

A

Parallel to midline

29
Q

Transverse

A

Perpendicular to midline

30
Q

Oblique

A

Diagonal to midline

31
Q

Maximus

A

Largest

32
Q

Minimus

A

Smallest

33
Q

Longus

A

Long

34
Q

Brevis

A

Short

35
Q

Latissimus

A

Widest

36
Q

Longissimus

A

Longest

37
Q

Magnus

A

Large

38
Q

Major

A

Larger

39
Q

Minor

A

Smaller

40
Q

Vastus

A

Huge

41
Q

Deltoid

A

Triangular

42
Q

Trapezius

A

Trapezoid

43
Q

Serratus

A

Saw toothed

44
Q

Rhomboid

A

Diamond shaped

45
Q

Orbicularis

A

Circular

46
Q

Pectinate

A

Comb like

47
Q

Piriformis

A

Pear shaped

48
Q

Platys

A

Flat

49
Q

Quadratus

A

Square, 4 sided

50
Q

Gracilis

A

Slender

51
Q

Flexor

A

Decrease joint angle

52
Q

Extensor

A

Increases joint angle

53
Q

Abductor

A

Moves away from midline

54
Q

Adductor

A

Moves towards midline

55
Q

Levator

A

Raises or elevates body part

56
Q

Depressor

A

Lowers or depressed body part

57
Q

Supinator

A

Turns palms up

58
Q

Pronator

A

Turns palm down

59
Q

Sphincter

A

Decreases size of opening

60
Q

Tensor

A

Makes body part rigid

61
Q

Rotator

A

Rotates body around longitudinal axis

Unit 3 (5 decks)

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