Bones and Landmarks
This groove on the humerus houses the radial nerve.
What is the radial (spiral) groove?
This anterior arm muscle has short and long heads, both inserting on the radial tuberosity.
What is biceps brachii?
This superficial anterior forearm muscle pronates and flexes the forearm.
What is the pronator teres?
The anterior arm muscles are innervated by this nerve.
What is the Musculocutaneous nerve?
This superficial vein crossing the cubital fossa is commonly used for venipuncture.
What is the median cubital vein?
The olecranon process is located on this bone.
What is the ulna?
This deep anterior arm muscle flexes the forearm in all positions.
What is the brachialis?
The muscle could be absent in humans and flexes the hand.
What is the palmaris longus?
This nerve innervates most of the anterior forearm muscles.
What is the median nerve?
The brachial artery bifurcates into these two arteries at the cubital fossa.
What are the radial and ulnar arteries?
The greater and lesser tubercles belong to this bone.
What is the humerus?
This small anterior arm muscle helps flex and adduct the arm, resisting dislocation of the shoulder.
What is the Coracobrachialis?
This deep anterior forearm muscle flexes the distal interphalangeal joints of digits 2–5.
What is flexor digitorum profundus?
This nerve innervates the flexor carpi ulnaris and medial half of FDP.
What is the ulnar nerve?
Injury to the radial nerve in the mid-humerus results in this classic clinical sign.
What is wrist drop?
The trochlear notch articulates with the humerus at this joint.
What is the elbow joint?
This posterior arm muscle is the chief extensor of the forearm.
What is the triceps brachii?
This extensor compartment muscle flexes the forearm despite being innervated by the radial nerve.
What is the brachioradialis?
The radial nerve supplies all of these compartments in the upper extremity
What are the extensor compartments of the arm and forearm?
The anterior interosseous nerve is a branch of this nerve.
What is the median nerve?
The head of the radius articulates with this structure on the humerus.
What is the capitulum?
This small posterior arm muscle assists triceps and abducts the ulna during pronation.
What is the anconeus?
This deep posterior forearm muscle abducts the thumb.
What is the abductor pollicis longus?
A lesion of this nerve at the wrist produces thenar weakness and sensory loss in digits 1–3.
What is the median nerve (carpal tunnel syndrome)?
The anatomical snuffbox overlies this artery, used for pulse palpation.
What is the radial artery?