week 2/2 > forearm and wrist region Flashcards
Radioulnar joints
superior and inferior radioulnar joints
superior radioulnar joint located
between the head of the radius and radial notch of ulna
inferior radioulnar joint located
between the head of the ulna and ulnar notch of the radis
type of joint for superior-inferior radioulnar joints
synovial hinge joint
movements for the forearm
pronation (pronator teres and quadratus)
supination (biceps brachii, supinator)
muscles of forearm
pronator teres
- medial epicondyle. > ulna, shift of radius
pronation of radioulnar joints, flexion of elbow joint.
two heads > median nerve passes between, forms boundary of cubital fossa. median nerve
flexor carpi radialis
- medial epicondyle > base metacarpal 2,3
- flexion, abduction of wrist joint
- radial artery and pulse lateral to tendon at wrist
- median nerve
flexor carpi ulnaris
medial epicondyle > palmar aponeurosis
- flexion of wrist joint
- may be small or absent, median nerve lateral to tendon at wrist median nerve
palmaris longus
1: attachment and insertion
2; action on arm
- medial epicondyle > palmar aponeurosis
- flexion, adduction of wrist joint
flexor digitorum superficialis
- flexion of wrist joint, mcp and PIP. joint
ELBOW REGION
elbow joint
- 2 sets of ligaments
1: medial collateral ligament
2: lateral collateral ligament
elbow joint
- 2 sets of ligaments
1: medial collateral ligament
2: lateral collateral ligament