bones of upper limb Flashcards
pectoral girdle and upper limb
32 bones
Clavicle
Scapula
Humerus
Radius
Ulna
8 carpals
5 metacarpals
14 phalanges
pectoral gridle consists of
2 bones clavicle and scapula
arm articulates with the trunk through the _________
pectoral girdle
clavicle
articulates medially with
sternum and sternoclavicular joint
clavicle articulates laterally with
acromion and acromioclavicualr joint
clavicle
medial end, rounded shape:
-features
costal tuberosity, costoclavicular ligament
clavicle
lateral end, flattened shape
-features
conoid tubercle, coracoclavicular ligament
clavicle acts as a brace to resist
longitudinal compression
clavicle
fracture of the ________ is common and dislocation of the _____ joint
medial portion
AC joint
ligaments on inferior clavicle
coracoclavicular
costoclavicular
spine of scapular articulates with
clavicle
acromion process of scapula articulates with
clavicles to form acromioclavicular joint (AC joint)
coracoid process of scapula stabilizes …
shoulder
fossae of scapula
supraspinous, infraspinous and sub scapular
attachments for mm
glenoid cavity of scapula articulates with … to form
head of humerus to from shoulder glenohuermal joint, ball and socket
T or F
the spine of the scapula articulates with the humerus, forming the shoulder joint
False
humerus articulates proximally with -___– and distally with ____ and ____
scapula
radius and ulna
proximal end of humerus
head (fits in glenoid cavity to form shoulder GH joint)
anatomical neck
surgical neck
great and lesser tubercles
shaft of humerus
deltoid tuberosity (attachment of deltoid muscle) and
radial groove (radial nerve passes in)
humerus distal end
capitulum articulates with
radius
humerus distal end
trochlea articulates with
ulna
humerus distal end
radial fossa articulates with
ulna
humerus distal end
coronoid fossa is on the
anterior aspect
humerus distal end
olecranon fossa is on the
posterior aspect
humerus distal end
medial and lateral epicondyles on
either sides of distal end
if it is a right humerus facing anterior which side is the capitulum on
left
radius
-features
- Lateral side of forearm
- Proximal end
Head
Neck
Radial tuberosity - Shaft
Interosseous membrane
- Proximal end
radius distal end
radial styloid process articulates with _______
radial collateral ligament of wrist
on the proximal end of ulna is the
on the distal end of the radius is the
(notches)
radial notch
Ulan notch
ulna features
medial side of forearm
proximal end
-olecranon process
-coronoid process
ulna proximal end
olecranon process is the site of attachment for the
triceps brachii
ulna proximal end
coronoid process fits into ________ of humerus
coronoid fossa
ulna
trochlear notch articulates with the _____ of humerus
trochlea
ulna
ulnar styled process articulates with
ulnar collateral ligament of wrist
humerus - fossa:
coronoid fossa for ____________ of ulna
coronoid process
humerus- fossa:
olecranon fossa for _________ of ulna
olecranon process
ulna
interosseous membrane connects
radius to ulna
supination to pronation
radius goes over top of ulna
carpal bones
proximal carpal bones (from lateral to medial)
scaphoid
lunate
triquetrum
pisiform
name articulations
scaphoid
lunate
triquetrum
pisiform
Scaphoid (articulates with radius)
Lunate (articulates with radius and ulna)
Triquetrum (articulates with ulna and pisiform)
Pisiform (articulates with tiquetrum)
distal carpal bones (from lateral to medial)
trapezium
trapezoid
capitate
hamate
name articulations
trapezium
trapezoid
capitate
hamate
Trapezium (articulates with scaphoid)
Trapezoid (articulates with scaphoid)
Capitate (articulates with scaphoid)
Hamate (articulates with triquetrum)
metacarpal bones
Roman numerals (I- IV)
Each has base, body and head
Proximally, articulate with distal carpals
phalanges (finger) bones
Articulate proximally with metacarpals.
Number is 14
Each finger has proximal, body and distal phalanges except thumb has only proximal and distal phalanges
how many metacarpals are in each hand
5
