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Kin > Muscular System > Flashcards

Muscular System Flashcards

1
Q

Types of Muscles

A

Cardiac - Involuntary
Smooth - Involuntary
Skeletal - Voluntary

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2
Q

Function of Skeletal Muscles

A

Produce movement, attach to bones using tendons, contract to cause movement

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3
Q

Line of Pull

A

The direction of which a muscle is pulled

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4
Q

Origin

A

Attachment of a muscle that remains relatively fixed during muscle contraction

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5
Q

Insertion of Muscle

A

Muscle end attached to the bone that moves when the muscle contracts

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6
Q

Principles of Muscle Action

A

Muscle must cross at a joint to act on it, How a muscle crosses the joint reflects the action, when a muscle shortens it extends the joint

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7
Q

Fixator

A

Stabilizes other joints to prevent unwanted movement

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8
Q

Synergist

A

Help agonist muscle

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9
Q

Agonist

A

Primary mover

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10
Q

Antagonist

A

Opposite reaction, provides resistance

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11
Q

Origin of the Sternocleidomastoid

A

Upper part of manubrium, anterior border of medial 1/3 clavicle

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12
Q

Insertion of Sternocleidomastoid

A

Mastoid process of temporal bone

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13
Q

Function of Sternocleidomastoid

A

Flexion of head

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14
Q

Origin of external obliques

A

Lower body of 8 lower ribs

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15
Q

Insertion of external obliques

A

Anterior half of iliac crest, abdominal aponeurosis, (connective tissue) to crest of pubis and linea alba

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16
Q

Function of external obliques

A

Flexion of trunk, lateral flexion and rotation of trunk, tenses abdominal wall for protection

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17
Q

Origin of rectus abdominis

A

Crest of pubis

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18
Q

Insertion of rectus abdominis

A

Coastal cartilage of 5th, 6th, and 7th ribs

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19
Q

Function of rectus abdominis

A

Tenses abdominal wall

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20
Q

Origin of Trapezius

A

Nuchal line of occipital bone, vertebral spines c1-c7, vertebral spines t1-t12

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21
Q

Insertion of Trapezius

A

Posterior border, lateral 1/3 of clavicle, upper surface of acromion, upper border of scapular spine

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22
Q

Function of Trapezius

A

Upward rotation, elevation, depression, extension of neck, hyperextension, retraction of scapula

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23
Q

Origin of Infraspinatus

A

Infraspinatus fossa of scapula

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24
Q

Insertion of Infraspinatus

A

Greater tubercle of humerus

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25
Q

Function of Infraspinatus

A

Lateral rotation of humerus, abduction of shoulder, stabilizer of head of humerus

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26
Q

SITS Muscles

A

Supraspinatus, Infraspinatus, Teres minor, Subscapularis

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27
Q

Origin of the Pectoralis Major

A

Anterior surface, Proximal end of clavicle, Anterior surface of sternum, Costal cartilage of upper 6 ribs

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28
Q

Insertion of Pectoralis Major

A

Bicipital groove of humerus (superior/lateral aspect of humerus)

29
Q

Function of Pectoralis Major

A

Flexion and adduction of shoulder joint, medial rotation of arm

30
Q

Origin of Latissimus Dorsi

A

Vertebral spines t7-L5, posterior surface of sacrum, crest of ilium, lower 3 ribs

31
Q

Insertion of Latissimus Dorsi

A

Bicipital groove of humerus

32
Q

Function of Latissimus Dorsi

A

Extension, Hyperextension, adduction of humerus, medial rotation of arm

33
Q

Origin of Deltoid

A

anterior border of lateral 1/3 of clavicle, middle-superior surface of acromion, posterior-lower border of scapular spine.

34
Q

Insertion of Deltoid

A

Deltoid tuberosity of humerus

35
Q

Function of Deltoid

A

anterior- flexion/medial rotation of humerus, middle- abduction of humerus, posterior- extends/laterally rotates humerus

36
Q

Origin of Bicep Brachii

A

short head: coracoid process of scapula
long head: supraglenoid tubercle of scapula

37
Q

Insertion of Bicep Brachii

A

Radial tuberosity of radius, proximal ulnar aponeurosis

38
Q

Function of Bicep Brachii

A

Flexion of elbow and shoulder, supination of forearm

39
Q

Origin of Brachialis

A

Distal half of anterior aspect

40
Q

Insertion of Brachialis

A

Coronoid process of ulna

41
Q

Function of Brachialis

A

Flexion of elbow

42
Q

Origin of Triceps Brachii

A

origin of triceps brachii
long head: infraglenoid tubercle of scalpula. lateral head: superior, posterior surface of humerus. medial head: inferior, posterior medial surfaces of humerus

43
Q

Insertion of Triceps Brachii

A

Olecranon process of ulna

44
Q

Function of Triceps Brachii

A

Extends elbow and shoulder

45
Q

Origin of Brachioradialis

A

Lateral supracondylar ridge of humerus

46
Q

Insertion of Brachioradialis

A

Styloid process of radius

47
Q

Function of Brachioradialis

A

Flexion

48
Q

Origin of Pronator Teres

A

Medial epicondyle of humerus, coracoid process of ulna

49
Q

Insertion of Pronator Teres

A

Middle 1/3 of lateral surface pf radius

50
Q

Function of Pronator Teres

A

Pronation of forearm, aids in flexion of elbow

51
Q

Origin of Supinator

A

Lateral of epicondyle of humerus, supinator crest of ulna

52
Q

Insertion of Supinator

A

Lateral, Anterior, Upper 1/3 of radius

53
Q

Function of Supinator

A

Supination of forearm

54
Q

What muscles make up the Quads

A

Rectus femoris, Vastus lateralis, Vastus intermedius, Vastus lateralis

55
Q

Where do the Quad muscles insert

A

Tibial Tuberosity

56
Q

What function do all the quadriceps muscles work towards

A

Extension of the knee, the rectus femoris also works the flex flexor

57
Q

Origin of rectus femoris

A

Anterior inferior iliac spine, brim of the acetabulum of ilium

58
Q

Where does the adductor longus insert

A

Linea aspera of femur

59
Q

Where do the vastus medialis and lateralis originate

A

linea aspera

60
Q

Function of tibialis anterior

A

Dorsiflexes and inverts foot

61
Q

Muscles that make up the hamstring

A

Semitendinosus, semimembranosus, bicep femorsis

62
Q

Common site of origin of the Hamstring muscle is

A

Tibial Tuberosity

63
Q

Function of hamstring muscle

A

Flexion of knee and extension of hip

64
Q

Slowest muscle in the body

A

Soleus

65
Q

Function of soleus

A

Plantar flexion

66
Q

Where do gastrocnemius and soleus insert

A

Calcaneus via achilles tendon

67
Q

Origin of gastrocnemius

A

Medial and lateral condyles of femur

68
Q

Function of gastrocnemius

A

Plantar flexion, flexion of the knee

Kin (5 decks)

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