Skeleton of the Upper Limb Flashcards
WHat region is the humerus in?
brachial region
what is the longest upper limb bone?
humerus
what does the articulation of the scapula with the humerus form?
shoulder joint
What does the articulation of the humerus with the ulna and radius form?
elbow joint
What do the greater and lesser tubercles of the humerus attach?
rotator cuff muscles
what does the intertubercular groove of the humerus house?
biceps brachii tendon (long head)
what does the deltoid tuberosity of the humerus attach?
deltoid
What part of the humerus articulates with the radius?
capitulum
what part of the humerus articulates with the ulna
trochlea
What attaches to the medial epicondyle of the humerus?
wrist flexor muscles
what does the lateral epicondyle of the humerus attach?
wrist extensor muscles
What is the most frequent region of fracture of the humerus?
surgical neck
What does the olecranon fossa of the humerus house?
olecranon of ulna when the forearm is extended
what does the radial groove of the humerus transmit?
radial nerve
what does the radial fossa of the humerus house?
radial head of radius when forearm is flexed
what does the coronoid fossa of the humerus house?
coronoid process of the ulna when the forearm is flexed
what region is the ulna located in?
antebrachial region
what separates the olecranon and coronoid processes of the ulna?
trochlear notch
What does the trochlear notch of the ulna articulate with? where?
trochlea of humerus at the elbow joint
what does the radial notch of ulna articulate with? what does it form?
radius, forms proximal radioulnar joint
what does the ulnar styloid process attach?
wrist ligaments
what is the interosseus membrane?
flat interconnecting ligament between the ulna and radius
What region is the radius located in?
antebrachial region
where is the head of the radius anatomically? what does it articulate with?
proximal, articulates with capitulum of humerus
what does the radial tuberosity of the radius attach?
biceps brachii
what happens when the biceps contract?
pull on the radial tuberosity of radius, pulling it back into anatomical position
what does the ulnar notch of the radius articulate with? form?
articulates with ulna forming distal radioulnar joint
what does the radial styloid process attach?
wrist ligaments
T/F: the Ulna articulates directly with the carpals
false, doesn’t touch any
Which carpals does the radius articulate with?
scaphoid and lunate
The __________ articular surface of the radius articulates with the ________ and ________ carpal bones forming the ________ joint
distal, scaphoid, lunate, wrist
the ulna is separated from the carpals by _____________ _________ discs
fibrocartilaginous articular
What is the carpus?
the wrist
what does the carpus articulate with?
radius and metacarpals
What are the proximal carpals?
scaphoid
lunate
triquetrum
pisiform
what are the distal carpals?
trapezium, trapezoid, capitate, hamate
what is the metacarpus?
palm
what does the metacarpus articulate with?
carpals and phalanges 1-5
what doe the phalanges articulate with?
metacarpals
what does the pollex consist of? what is it?
1st digit, proximal and distal phalanx
what do the 2-5th digits consist of?
proximal, middle, distal phalanx
