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Kinesiology > Lab 2: Elbow, forearm > Flashcards

Lab 2: Elbow, forearm Flashcards

1
Q

humerus greater tubercle

A

prominent area at top of the humerus and is the attachment for the two large, powerful rotator cuff muscles - supraspinatus and infraspinatus.

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2
Q

humerus lesser tubercle

A

although smaller, is more prominent than the greater tubercle: it is situated in front, and is directed medially and anteriorly.

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3
Q

deltoid tuberosity

A

a rough, triangular[1] area on the anterolateral (front-side) surface of the middle of the humerus to which the deltoid muscle attaches.

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4
Q

radial groove

A

the shallow groove that passes around the shaft of the humerus; it lies between the humeral attachments of the lateral and medial heads of the triceps brachii; the radial nerve and deep brachial artery course within the groove.

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5
Q

Medial epicondyle

A

is larger and more prominent than the lateral epicondyle and is directed slightly more posteriorly in the anatomical position. It gives attachment to the ulnar collateral ligament of elbow joint, to the Pronator teres, and to a common tendon of origin (the common flexor tendon) of some of the Flexor muscles of the forearm

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6
Q

Intertubercular groove

A

separates greater and lesser tubercles of humerus. lodges the long tendon of the Biceps Brachii muscle between the tendons of Pectoralis Major on the lateral lip and Teres Major on the medial lip. It also transmits a branch of the anterior humeral circumflex artery to the shoulder-joint.

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7
Q

Lateral supracondylar ridge

A

a prominent, rough margin, a little curved from behind forward, formed by the lower part of the lateral border of the body of the humerus. origin of the brancioradioradialis, extensor carpi radialis longus, triceps brachii, and attachment of the lateral intermuscular septum

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8
Q

lateral epicondyle

A

a small, tuberculated eminence, curved a little forward, and giving attachment to the radial collateral ligament of the elbow-joint, and to a tendon common to the origin of the supinator and some of the extensor muscles. Specifically, these extensor muscles include the anoconeus muscle, the supinator, extensor carpi radialis brevis, extensor digitorum, extensor digiti, and extensor carpi ulnaris

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9
Q

Capitulum

A

a smooth, rounded eminence on the anterior lateral side of the humerus, It articulates with the cupshaped depression on the head of the radius, and is limited to the front and lower part of the bone.

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10
Q

trochlea of humerus

A

the medial portion of the articular portion of the elbow joint which articulates which articulates with the trochlear notchon the ulna in the forearm

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11
Q

radius

A

lateral bone of forearm

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12
Q

radial tuberosity

A

an eminence beneath the radius neck on the medial side, which is divided into 2 a rough anterior portion for the insertion of the biceps brachii tendon, and a posterior, smooth portion, on which a bursa is interposed between the tendon and the bone

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13
Q

ulnar crest

A

gives attachement for interosseous membrane

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14
Q

ulna

A

medial bone of forearm

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15
Q

supinator fossa of ulna

A

on ulna proximal, next to ulnar crest

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16
Q

olecranon process of ulna

A

a large, thick, curved bony eminence of the forearm that projects behind the elbow

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17
Q

coranoid process of ulna

A

a triangular eminence projecting forward from the anterior proximal portion of the ulna.

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18
Q

Trochlear Notch of ulna

A

a large depression, formed by the olecranon and the coronoid process, and serving for articulation with the trochlea of the humerus.

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19
Q

carpals

A

the 8 wrist bones of each hand, arranged in proximal and distal rows of 4 bones each

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20
Q

metacarpals

A

5 bones which span the palm of each hand

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21
Q

phalanges

A

14 on each hand, 2 for the thumb (1st digit), and 3 for each of the remaining 4 digits

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22
Q

anular ligament

A

surrounds the radial head in the proximal radio-ulnar articulation

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23
Q

ulnar collateral ligament

A

on the medial side of the elbow

24
Q

biceps brachii origin

A

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

25
Q

biceps brachii insertion

A

tuberosity of radius and fascia of forearm via bicipital aponeurosis

26
Q

biceps brachii main actions

A

supinates flexed forearm; flexes forearm at elbow; weak arm flexor

27
Q

strengthening for biceps brachii

A

hold weights in hands, hold arms in anatomical position, flex forearm at elbow, lower, repeat

28
Q

stretching for biceps brachii

A

abduct shoulder to 90 degrees with arm straight and against a wall, rotate torso in opposite direction of arm

29
Q

brachialis origin

A

distal half of anterior humerus

30
Q

brachialis insertion

A

coronoid process and tuberosity of ulna

31
Q

brachialis and brachioradialis main actions

A

flexes forearm at elbow in all positions

32
Q

brachioradialis origin

A

proximal two thirds of lateral supracondylar ridge of humerus

33
Q

brachioradialis insertion

A

lateral surface of distal end of radius

34
Q

brachialis and brachioradialis strengthening

A

hold weights in hands, hold arms in anatomical position, flex forearm at elbow, lower, repeat

35
Q

brachialis and brachioradialis stretching

A

abduct shoulder to 90 degrees with arm straight and against a wall, rotate torso in opposite direction of arm

36
Q

pronator teres origin

A

medial epicondyle of humerus and coronoid process of ulna

37
Q

pronator teres insertion

A

middle of lateral surface of radius

38
Q

pronator teres main actions

A

pronates forearm and flexes elbow

39
Q

pronator teres strengthening

A

hold round weights in hands, abduct shoulder, then pronate forearm and flex elbow

40
Q

pronator teres stretching

A

abduct arm then supinate forearm by rotating forearm laterally, then holding in place by placing opposite hand on rotated arm’s hand

41
Q

pronator quadratus origin

A

distal fourth of anterior surface of ulna

42
Q

pronator quadratus insertion

A

distal fourth of anterior surface of radius

43
Q

pronator quadratus main action

A

pronates forearm

44
Q

pronator quadratus strengthening

A

hold round weights in hands, abduct shoulder, then pronate forearm

45
Q

pronator quadratus stretching

A

abduct arm then supinate forearm by rotating forearm laterally, then holding in place by placing opposite hand on rotated arm’s hand

46
Q

supinator origin

A

lateral epicondyle of humerus; radial collateral, and anular ligaments; supinator fossa; and crest of ulna

47
Q

supinator instertion

A

lateral, posterior, and anterior surfaces of proximal third of radius

48
Q

supinator action

A

supinates forearm

49
Q

supinator strengthening

A

hold weights in hands, then supinate forearms with elbows flexed at 90 degrees

50
Q

supinator stretching

A

flex shoulder in front of body, then pronate forearm, taking opposite hand and holding hand of pronated forearm in place.

51
Q

triceps brachii origin

A

long head: infraglenoid tubercle of scapula; lateral head: posterior humerus; medial head: posterior surface of humerus, inferior to radial groove

52
Q

triceps brachii insertion

A

proximal end of olecranon of ulna and fascia of forearm

53
Q

triceps brachii main actions

A

extends forearm at elbow; is chief extensor of elbow; steadies head of abducted humerus (long head)

54
Q

triceps brachii strengthening

A

get in a reverse pushup position on a bench by keeping legs straight and feet far from bench, pronating forearm, and hyperextending shoulder, hyperextending hands to place on bench edge, then flexing elbow to lower body closer to floor, then extending forearm at elbow to raise body back in straight line

55
Q

triceps brachii stretching

A

hyperflex shoulder to move arm straight above head, flex elbow, hold bent elbow close to ear, then take opposite hand and put pressure on elbow medially, so that elbow is abducted behind head

Kinesiology (7 decks)

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