Bones of the Upper Limbs

Discipline: Medical Sciences (Anatomy, Physiology, Pharmacology etc.)

Type of Paper: Question-Answer

Academic Level: Undergrad. (yrs 3-4)

Paper Format: APA

Pages: 1 Words: 275


Each upper limb has __ bones     30

There are __ carpals in the carpus, __ metacarpals in the metacarpus (palm), and __ phalanges in the hand.      8, 5, 14

the arm bone       humerus

the longest and largest bone of the upper limb    humerus

the humerus articulates proximally with the ______ and distally with the _____ and ______.      scapula, ulna & radius

proximal end of humerus features a rounded ______ that articulates with the ______ of the scapula to form the ____________ joint.
head, glenoid cavity, glenohumeral

distal to the head is the _____, which is visible as an oblique groove  neck

What part of the humerus is the former site of the epiphyseal growth plate?
the neck

a lateral projection distal to the anatomical neck, the most laterally palpable bony landmark of the shoulder region immediately inferior to the acromion of the scapula   greater tubercle

an anterior projection of the humerus   less tubercle 

grove between greater and less tubercle of humerus  intertubercular sulcus

a constriction in the humerus just distal to the tubercles where the head tapers to the shaftsurgical neck

Why is the surgical neck referred to as it is?
It is the site of many fractures

the _____ of the humerus is roughly cylindrical at its proximal end but gradually becomes ______ until it is flattened and broad at the distal end 
body, triangular

v-shaped area of humerus that serves as attachment point for tendons of the deltoid muscle   deltoid tuberosity

rounded knob on the lateral aspect of the distal end of the humerus that articulates with the head of the radius   capitulum

an anterior depression above the capitulum that articulates with the head of the radius when the forearm is flexed   radial fossa

located medial to the capitulum of the humerus, it is a spool-shaped surface that articulates with the trochlear notch of the ulna   trochlea

an anterior depression that receives the coronoid process of the ulna when the forearm is flexedcoronoid fossa

a large posterior depression that receives the olecranon of the ulna when the forearm is extended      olecranon fossa

rough projections on either side of the distal end of the humerus to which the tendons of most muscles of the forearm are attached 
medial and lateral epicondyles

bone located on the medial aspect of the forearm    ulna

True or False? The ulna is longer than the radius.     True

at the proximal end of the ulna is the _______ which forms the prominence of the elbow     olecranon

an anterior projection of the ulna that that articulates with trochlea of the humerus        coronoid process 

a large curved area between the olecranon and coronoid process that forms part of the elbow joint         trochlear notch

The distal end of the ulna consists of a ____ that is separated from the wrist by a disc of fibrocartilage             head

located on the posterior side of the ulna's distal end the ______ provides attachment for the ulnar collateral ligament to the wrist  
styloid process

smaller bone of the forearm that is located on the lateral aspect of the forearm    radius

the radius is _____ at its proximal end and _______ at its distal end
narrow, widens

The proximal end of the radius has a disc-shaped ____ that articulates with capitulum of the _______ and the radial notch of the ____.
head, humerus, ulna

a roughened area inferior to the neck on the anteromedial side that is a point of attachment for the tendons of the biceps brachii msucle
radial tuberosity

the capitulum is to the head as the trochlea is to the ______coronoid process

the shaft of the radius widens distally to form a ______ on the lateral side which can be felt proximal to the thumb      styloid process

the distal end of the radius articulates with three bones of the wrist to form the ________ joint
radiocarpal (wrist)

the radiocarpal joint joins the distal end of the radius with what three bones of the wrist?   the lunate, the scaphoid, and the triqutrum

proximal region of hand made up of 8 carpals       carpus

the eight carpals are joined together by ______    ligaments

Carpals are arranged in ___ transverse rows of ___ bones each.    2, 4

scaphoid, lunate, triquetrum, pisiform    carpal bones in proximal row

trapezium, trapezoid, capitate, and hamate   carpal bones of the distal row

boatlike carpal bone                scaphoid

moon-shaped carpal bone    lunate

three cornered carpal bone   triquetrum

pea-shaped carpal bone    pisiform

four-sided carpal bone with no two side parallel   trapezium

a four-sided carpal bone with two sides parallel   trapezoid

head-shaped carpal bone    capitate

hooked carpal bone     hamate

largest carpal bone    capitate

In about 70% of carpal fractures only the _____ bone is broken.    scaphoid

In the anatomical position, the first metacarpal is the most _____ bone lateral

There are __ metacarpals    5

the ____ of the metacarpals articulates with proximal phalanges (the knuckles)      head

finger bones    phalanges

there are __ phalanges    14

the ____ is the first phalange       thumb

There are __ phalanges in each finger except in the thumb there are __   3, 2

thumb    pollex