Kinesiolody 11 Flashcards

Elbow Joint

1
Q

elbow joint

A

articulation of the humerus with the ulna and radius

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2
Q

uniaxial (hinge) joint

A

allows only flexion and extension, one plane and one axis

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3
Q

radioulnar (pivott) joint

A

articulation between the ulna and the radius, occurs at both proximal and distal ends of the forearm, uniaxial, allows only pronation or supination on transverse plane around vertical axis

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4
Q

proximal radioulnar joint

A

head of radius pivots within the radial notch of ulna

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5
Q

distal radioulnar joint

A

distal end of radius rotates around the distal end of the ulna

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6
Q

elbow function

A

to shorten, or lengthen the upper extremity and to place the hand in space

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7
Q

carrying angle

A

the anatomical position, in the longitudinal axes of the humerus and the forearm from the anatomical position

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8
Q

occurance of carrying angle

A

because distal end of humerus is not level. The medial side (trochlea) is lower than the lateral side (capitulum)

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9
Q

elbow flexion end feel

A

soft, because of muscle bulk of the arm and forearm compressing together to limit further motion

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10
Q

elbow extension end feel

A

boney, bone-to-bone contact, olecranon process of ulna moves into olecranon fossa of humerus

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11
Q

supination forearm end feel

A

firm, not quite as distinct because of muscle and ligament tension

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12
Q

pronation forearm end feel

A

boney, due to the boney contact between the ulna and radius

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13
Q

open chain activity of fore arm

A

both the joint surfaces glide on the humerus in the same direction as the motion of the forarm

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14
Q

Scapula Infraglenoid Tubercle

A

raised portion on the interior lip of the glenoid fossa that provides attachment of the long head of thee triceps muscle

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15
Q

Scapula Supraglenoid Tubercle

A

Raised portion on the superior lip of the glenoid fossa that provides attachment for the long head of the biceps muscle

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16
Q

Scapula Coracoid Process

A

Projection on the anterior surface that provides the attachment for the short head of the biceps muscle

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17
Q

Humurus Spiral Groove

A

groove that the radial nerve runs through as it spirals around the midhumerus

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18
Q

Humerus Trochlea

A

located on the medial side of the distal end; articulates with the ulna

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19
Q

humerus capitulum

A

on the lateral side, next to the trochlea, articulates with head of radius

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20
Q

humerus medial epicondyle

A

located on the medial side of the distal end, above the trochlea, larger and more prominent than the lateral epicondyle, provides attachment for the pronator teres muscle

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21
Q

hemerus lateral epicondyle

A

located on lateral side of the distal end, above the capitulum, provides attachment for the anconeus and the supinator muscles

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22
Q

humerus lateral supracondyle ridge

A

located above the lateral epicondyle, provides attachment for the brachioradialis muscle

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23
Q

humerus olecranon process

A

located on the posterior surface between the medial and lateral epicondyles, articulates with the olecranon process of the ulna

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24
Q

medial bone of forearm

A

ulna

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25
Q

ulna olecranon process

A

located at the proximal end on the posterior surface, forms prominent point of elbow, provides attachment for triceps muscle

26
Q

ulna trochlear notch

A

semilunar notch, articulates with the trochlea of humerus, makes up the anterior surface at the proximal end

27
Q

ulna coronoid process

A

located just below the trochlear notch with the ulnar tuberosity, provides attachment for brachialis muscle

28
Q

ulna radial notch

A

located at the proximal end on the lateral side, just distal to the trochlear notch, articulation point for the head of the radius

29
Q

ulnar tuberosity

A

located below the coronoid process, provides attachment for the brachialis muscle

30
Q

ulna styloid process

A

at the distal end, on the posterior medial surface

31
Q

ulna head

A

distal end, lateral surface, unlar notch of radius pivots around during pronation and supination

32
Q

lateral bone of forearm

A

radius

33
Q

radius head

A

proximal end, has cylinder shape with depression in the superior surface where it articulates with the capitulum of the humerus

34
Q

Radial Tuberosity

A

Located on medial side, near proximal end, provides attachment for biceps muscle

35
Q

styloid process

A

located posterior lateral at distal end, provides attachment for the brachioradialis muscle

36
Q

three ligaments of elbow

A

medial collateral ligament, lateral collateral ligament, angular ligament

37
Q

medial collateral ligament of elbow

A

triangular, spans the medial side of elbow. attaches on the medial epicondyle of the humerus and runs obliquely to the medial sides of the coronoid process and the onlecranon proces of the ulna

38
Q

elbow lateral collateral ligament

A

triangular, attaches proximally on the lateral epicondyle of the humerus and distally on the angular ligament and lateral side of the ulna

39
Q

elbow angular ligament

A

attaches anteriorly and posteriorly to the radial notch of the ulna encompassing the radial head of the radius holding it against ulna

40
Q

elbow joint capsule

A

attaches around the distal end of the humerus and encompasses the trochlea and capitulum and the fossas located above. Attaches aroundthe, proximal end of ulna under the radial notch and coronoid process, and around trochlear notch onto just around an under the head of the radius

41
Q

interosseous membrane

A

assists in holding together the radioulnar articulation, located between the ulna and the radius, keeps the two bones from separating and provides more surface area for attachment of the forearm and wrist muscles.

42
Q

line of pull of a muscle

A

will play in the major role in determining the action of the muscle

43
Q

brachialis muscle

A

lies deep to biceps
O - Distal half of humerus, anterior surface
I - Coronoid process and ulnar tuberosity of ulna
A - elbow flexion

44
Q

biceps brachii muscle

A

has two heads (long head & short head), anterior aspect of arm, common name biceps
O - long head : supraglenoid tubercle of scapula
short head : coracoid process of scapula
I - radial tuberosity of radius
A - Elbox flexion, forearm supination

45
Q

brachioradialis muscle

A

assistive role in pronation and supination to midpoint of 90 degrees
O - lateral supracondyle ridge on humerus
I - styloid process of radius
A - Elbow flexion

46
Q

triceps brachii muscle

A

commonly called triceps, has three heads, located posteriorly
O - long head: Infraglenoid tubercle of scapula
lateral head: inferior to greater tubercle of posterior humerus
medial head: posterior surface of humerus
I - olecranon of ulna
A - elbow extension

47
Q

anconeus muscle

A

O - lateral epicondyle of humerus
I - lateral and inferior to olecranon process of ulna
A- not a prime mover in any joint action, assists in elbow flexion

48
Q

pronator teres muscle

A

O - medial epicondyle of humerus and coronoid process of ulna
I - lateral aspect of radius at its midpoint
A - forearm pronation, assistive in elbow flexion

49
Q

pronator quadratus muscle

A

O - distal one fourth of ulna
I - distal one fourth of radius
A- forearm pronation

50
Q

supinator muscle

A

deep muscle that wraps around the elbow joint laterally from the posterior surface to the anterior surface
O - lateral epicondyle of humerus and adjacent ulna
I - anterior surface of the proximal radius
A - forearm supination

51
Q

tennis elbow

A

lateral epicondylitis

52
Q

lateral epicondylitis

A

common overuse condition that effects the common extensor (anconeus). tendon where it inserts on the lateral epicondyle of the humerus. The extensor capri radialis brevis is particularly effected.

53
Q

golfer’s elbow

A

medial epicondylitits

54
Q

medial epicondylitis

A

inflammation of a common flexor tendon that inserts on the medial epicondyle (pronator teres)

55
Q

little league elbow

A

overuse injury of the medial epicondyle, usually caused by repetitive throwing, youngsters whom have not reached skeletal maturity

56
Q

nuresmaid’s elbow

A

pulled elbow

57
Q

pulled elbow

A

usually seen in younger children under the age of 5 whom have experience a strong traction force of the arm, force causes the radial head to sublux out from under the annular ligament

58
Q

elbow dislocation

A

caused when a great deal of force is applied to elbow that is in a slightly flexed position, causes ulna to slide posterior to humerus

59
Q

supracondylar fractures

A

among most common fractures in children and are caused by falling on an outstretched hand. The distal end of humerus fractures just above the condyles

60
Q

Volkmann’s ischemic contracture

A

danger of both supracondyle fracture and elbow dislocation, potential damage to the brachial artery

61
Q

ulnar nerve compression

A

pain from ‘hitting the funny bone’ of elbow