Enumerate the bones of the upper limb, shoulder girdle and the joints of the upper limb. Add a note on the elbow joint.
Bones of the shoulder girdle
Scapula
clavicle
Bones of the upper limb
Humerus
ulna
radius
carpal bones - proximally medial to lateral and then distally lateral to medial
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Pisiform, Triquetral, Lunate, Scaphoid, Trapezium, Trapezoid, Capitate, Hamate
metacarpals
Phalanges - Three finger for each finger and two for thumb
Joints of the Upper Limb
Shoulder joint
Elbow joint
Wrist joint
Carpal joints
Carpometacarpal joints
Metacarpophlangeal joints
Interphalangeal joints
Elbow Joint
Definition
An articulation between the humerus of the upper arm and ulna & radius of the forearm.
Type of joint
It is a synovial joint
It is a hinge joint
The parts
The parts of the humerus that take part in the joint : trochlea and capitulum at the lower end of the humerus
The part of the ulna in the joint : olecranon process: that of the radius : head
The components of the joint :
Humeroulnar part - between the trochlea and the trochlear notch of the olecranon - major part
Humeroradial part - between the capitulum of the humerus and the head of the radius
All the articulating surfaces are included in a capsule lined inside by a synovial membrane - synovial joint
Movements
Flexion
Extension
When the elbow is extended fully and the forearm supinated, laterally an angle 170° is formed - carrying angle - more pronounced in the female - when articles are carried they are held away from body
