Brainscape's Knowledge GenomeTM

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


See full index

Human Anatomy > Muscles > Flashcards

Muscles Flashcards

1
Q

Tendon

A

Muscle to bone

Part of muscular and skeletal system

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

Origin

A

Fixed end
Most stationary
Proximal end of muscle

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

Insertion

A

Mobile
Distal end of muscle
Undergoes greatest movement

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

Belly

A

Part of muscle between origin and insertion

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

Agonist

A

Muscle contracting in pair

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

Antagonist

A

Muscle relaxing in pair

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

Synergists

A

Muscles that work in groups

Each muscle can belong to more than one synergist

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

Prime mover

A

Muscle that plays a main role out of the group of synergists

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

Fixators

A

within synergists

Stabilise the origin of a prime mover

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

Muscles grouped into 3 main classes

A

Pennate
Straight
Orbicular

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

Pennate muscle

A 
Produces the greatest force 
Most muscles involved in movement 
Striated - contracting these directions 
Bipennate 
Semipennate 
Multipennate
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

Bipennate

A

Fibres arranged on either side on a common tendon

Barbs on a feather

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

Semipennate

A

Or unipennate

Muscle with fibres on one side go the tendon

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

Multipennate

A

Muscle fibres arranged at many places around a central tendon

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

Straight Muscle

A

Fibres parallel to long axis of the muscle

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

Orbicular muscle

A

Fibres arranged in a circle around an opening

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

Specific muscle shapes

A 
Quadrate 
Rhomboidal 
Fusiform 
Trapezium 
Triangular
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

Digastric

A

Muscles with multiple components such as two bellies

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

Bicipital

A

Muscle with two origins

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

Quadrate muscle

A

Four sided

Right angles

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

Rhomboidal muscle

A

Four sided with no right angle

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

Fusiform muscle

A

Spindle shape

Tapered either end

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

Trapezium muscle

A

Four sided

no right angles or parallel sides

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

Triangular muscle

A

Three sided

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

Lever systems

A

Lever - bone
Fulcrum - joint
Weight - force of gravity
Class i, ii and iii

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

Class I lever

A

Fulcrum located between pull and the weight
Seesaw
Posterior neck muscles contact to cause neck extension (face is the weight and joint in neck acts as fulcrum)

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

Class II lever

A

Weight between fulcrum and the pull
Wheelbarrow
Muscles contract to open jaw (pull) and mandible is weight. TMJ joint is fulcrum

28
Q

Class III

A

Most common
Pull located between fulcrum and weight
Biceps brachii contracts to pull the the radius (lever) which flexes the elbow (fulcrum) and elevates hand (weight)

29
Q

Sternocleidomastoid

A

Neck - 2
One contracting alone - Laterally flexes head and neck to same side/rotates head to opposite side
Both contract together - Flexes neck

30
Q

Trapezius

A

Neck - 1

Extends and laterally flexes neck

31
Q

Erector spinae group

A

Superficial back muscles grouped together

Extending, laterally flexing and rotating the vertebral column

32
Q

Thorax (thoracic cavity)

A

Rib cage cavity from neck to diaphragm

33
Q

Thoracic muscles

A 
4 main groups of the thorax muscles: 
Scalenes 
External intercostals 
Internal intercostals 
Transversus thoracics
34
Q

Diaphragm

A

Muscle of the thorax
Major movement produced by quiet breathing
Dome shaped
During contracting, dome flattens and thoracic cavity increases causing inspiration

35
Q

Inspiration

A

Rest - Diaphragm contracts and rib cage is elevated by external intercostal muscles
Exercise - Diaphragm contracts and scalene elevates first two ribs more forcefully casing an increase in thoracic volume

36
Q

Expiration

A

Rest - Diaphragm relaxes af muscle groups relax
Exercise - Diaphragm relaxes and internal intercostal muscles and transverses thoracis depress the ribs causing a decrease in thoracic cavity volume

37
Q

Rectus Abdominis

A

Flexes vertebral column and compresses abdomen

38
Q

External and internal abdominal oblique

A

Flex and rotate vertebral column
Compress abdomen
Depress thorax

39
Q

Transversus abdominis

A

Compress abdomen

40
Q

Deltoid (anterior, medial and posterior)

A

Flexes and extends shoulder
Abducts
Medially and laterally rotates arm

41
Q

Coracobrachialis

A

Abducts the arm and flexes the shoulder

42
Q

Pectoralis major

A

Flexes shoulder
Adducts
Medially rotates arm

43
Q

Latissimus dorsi

A

addicts and medially rotates arm

Extends shoulder

44
Q

Teres major

A

Extends shoulder
Adducts arm
Medially rotates arm

45
Q

Rotator cuff

A

Hold head of humerus in place at glenoid cavity

46
Q

Rotator cuff comprised of

A 
Infraspinatus 
Subscapularis 
Suprasinatus 
Teres minor 
All shoulder movement
47
Q

Biceps brachii

A

Arm
Flexes shoulder and elbow
Supinates forearm and gand

48
Q

Brachialis

A

Arm

Flexes elbow

49
Q

Tricep brachii

A

Arm
Extends elbow
Extends arm
Adducts arm

50
Q

Brachioradialis

A

Forearm

Flexes elbow

51
Q

Pronator teres

A

Forearm

Pronates forearm

52
Q

Supinator

A

Forearm

Supinates forearm

53
Q

Gluteus maximus

A

Extends hip

54
Q

Gluteus medius

A

Abducts thigh

55
Q

Gluteus minimus

A

Abducts though

56
Q

Piriformis

A

Abducts thigh

57
Q

Tensor fasciae latae

A

Thigh
Flexes hip
Abducts
Medially rotates thigh

58
Q

Vastus Lateralis

A

Thigh

Help make up quadriceps

59
Q

Rectus Femoris

A

Thigh

Help make up quadriceps

60
Q

Sartorius

A

Thigh

Flexes hip and knee

61
Q

Vastus medialis

A

Thigh

Help make up quadriceps

62
Q

Vastus intermedius

A

Thigh

Help make up quadriceps

63
Q

Hamstring

A

Semitendiosus
Semimembranosus
Biceps femoris

64
Q

Gastrocnemius

A

Calve (posterior)

Plantar flexes foot and flexes knee

65
Q

Soleus

A

Calve (posterior)

Plantar flexes foot

66
Q

Tibialis anterior

A

Calve (anterior)

Dorsiflexes foot

Human Anatomy (8 decks)

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