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Gross Anatomy > Joints/Other Test 2 > Flashcards

Joints/Other Test 2 Flashcards

0
Q

Disc Firmly attached to anterior and posterior SC ligaments, thickenings of the fibrous layer of joint capsule and the interclavicular ligament. Shock absorber for clavicle

A

articular disc of the SC joint

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1
Q

synovial articulation between sternal end of clavicle & manubrium, as well as 1st costal cartiliage. Saddle joint, but functions as a ball and socket joint. flexion and abduction

A

Sternoclavicular joint

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2
Q

surrounds the SC joint, including epiphysis at sternal end of clavicle.

A

joint capsule of SC joint

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3
Q

plane synovial articulation located 2-3 cm from “point of shoulder” formed by the lateral part of the acromion. flexion and abduction.

A

acromioclavicular (AC) joint

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4
Q

articular surfaces of AC joint covered with fibrocartiliage are separated by:

A

articular disc of AC joint

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5
Q

sleevelike, loose fibrous layer of the AC joint attached to margins of articular surfaces.

A

joint capsule of AC joint

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6
Q

strong, extra-articular ligament separated into conoid and trapezius ligament. anchors clavicle to the coracoid process of scapula

A

coracoclavicular ligament

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7
Q

vertical and attached to coracoid process. goes to the base of the clavicle

A

Conoid ligament (part of coracoid ligament)

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8
Q

Horizontal, and attached to the superior surface of the coracoid process extending laterally and posteriorly to trapezoid line on inferior surface of clavicle. limits flexion and abduction

A

trapezoid ligament (of coracoclavicular ligament)

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9
Q

ball and socket, synovial joint. permits a lot of ROM, but its mobility makes it unstable. flexion, abduction, extension, medial and lateral rotation. *main shoulder joint

A

glenohumeral joint

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10
Q

fibrocartliaginous ringlike structure

A

glenoid labrum

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11
Q

originates on the superglenoid tubercle of scapula. flexes elbow joint. chief extensor

A

tendon of the long head of the biceps brachii

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12
Q

broad, fibrous band running from greater to lesser tubercle. bridging over ntertubercular sulcus and converting the sulcus into a canal of the tendon of the long head of the biceps brachii

A

transverse humeral ligament

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13
Q

spans between acromion and coracoid process. prevents superior displacement from glenoid cavity

A

coraco-acromial ligament

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14
Q

Borders of the quadrangular space

A

medial: long head of triceps
lateral: humeral shaft
superior: teres minor
inferior: teres major

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15
Q

contents of the quadrangular space

A

Axillary nerve

Posterior Circumflex Humeral Artery

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16
Q

pyrimidal space inferior to the glenohumeral joint and superior to the skin and axillary fascia

A

axilla

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17
Q

borders of the axilla

A

Apex- cervico-axillary canal
base-concave skin, subcutaneous tissue and deep fascia
anterior wall- pec major and minor and pectoral and clavipectoral fascia associated with them. anterior axillary fold is most inferior part
Posterior wall- scapula and subscapularis anteriorly, and inferiorly by teres major and and lats. posterior axillary wall is most inferior portion
Medial wall- formed by thoracic wall and overlying serratus anterior
Lateral wall- narrow bony wall formed by intertubercular sulcus

18
Q

contents of axilla

A

axillary artery and its branches, axillary vein, nerves of the cords & branches of the brachial plexus, lymphatic vessels and several groups of axillary lymphnodes all embedded in axillary fat.

19
Q

synovial hinge type of joint, located inferior to humeral epicondyles. flexion and extension occur here.

A

elbow (humeroulnar) joint

20
Q

pivot type of synovial joint allowing movement of head and radius of ulna. fibrous layer of the joint capsule encloses the joint and is continuous with the elbow joint. pronation and supination

A

proximal radio-ulnar joint

21
Q

lateral and fan-like ligament that extends from lateral epicondyle of of humerus and binds distally with annular ligament.

A

radial collateral ligament

22
Q

encircles and holds head of radius in the radial notch of ulna forming proximal radial-ulnar joint, permitting pronation and supination

A

annular ligament

23
Q

medial, triangular ligament extending from medial epicondyle of humerus to coronoid process, consisting of 3 bands- anterior cord like (strongest), posterior fan like (weakest) and oblique band which deepens the socket for trochlea of the humerus

A

ulnar collateral ligament

24
Q

cubital fossa borders

A

superiorly: imaginary line from medial and lateral epicondyles
medially: pronator teres
laterally: brachioradialis
floor: brachialis and supinator
roof: brachial and antebrachial fascia

25
Q

contents of cubital fossa

A

brachial artery, biceps tendon, median nerve, radial nerve, medial cubital vein and medial & lateral cutaneous nerves

26
Q

condyloid synovial joint, performs flexion/extension, abbduction/adduction, and circumduction

A

radiocarpal joint

27
Q

articular surfaces of radiocarpal joint

A

distal end of radius, and articular disc with proximal row of carpal bones (except pisiform)

28
Q

ligaments of radiocarpal joint

A

anterior and posterior ligaments strengthen fibrous capsule. ulnar collateral ligament attaches to styloid process of ulna and triquetrium, radial collateral ligament attaches to styloid process of radius and scaphoid

29
Q

pivot type of synovial joint

A

radioulnar joint

30
Q

fibrocartilaginous, binds the end of the ulna and radius together and is the main uniting structure of the joint

A

articular disc of the distal radio-ulnar joint

31
Q

membrane between radius and ulna. aids in pronation

A

interosseus membrane

32
Q

holds extensor tendons in place and prevents bowstringing of the tendons when the hand is extended at the wrist.

A

extensor retinaculum

33
Q

transverse carpal ligament that extends btw anterior prominence of outer capral bones into carpel tunnel

A

flexor retinaculum

34
Q

what kind of joint is an intercarpal joint?

A

plane synovial

35
Q

what are the ligaments of the intercarpal joints?

A

anterior, posterior, and interosseus ligaments

36
Q

what actions take place at intercarpal joints?

A

flexion and abduction of hand occur at midcarpal joint

37
Q

what type of joint are the carpometacarpal joints of digits 2-5?

A

plane synovial

38
Q

on the thumb, what type of joint is the carpometacarpal joint?

A

saddle

39
Q

what ligaments are at a carpometacarpal joint?

A

anterior, posterior, interosseus ligaments

40
Q

what movements occur at carpometacarpal joints?

A

flexion/extension, abduction/adduction @ CMC joint of thumb, almost no movement and 2 and 3 digits, 4th digit slightly mobile, 5th digit very mobile

41
Q

what type of joint is the metacarpophalangeal?

A

condyloid

42
Q

what type of joint are the interphalangeal joints?

A

hinge

43
Q

what passes through the carpal tunnel?

A

9 tendons (4 tendons FDS, 4 tendons, FDP, 1 tendon FPL), 1 nerve (median nerve)

Gross Anatomy (7 decks)

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