Cubital Fossa Anatomy Quiz

What structure forms the lateral boundary of the cubital fossa?

Which of the following structures is NOT a content of the cubital fossa?

What forms the floor of the cubital fossa?

What is the superior boundary of the cubital fossa?

Which nerve is located deep within the cubital fossa, between the muscles forming the lateral boundary and the brachialis?

What structures accompany the median nerve as it enters the hand through the carpal tunnel?

Which muscles does the median nerve supply distal to the carpal tunnel?

What area does the palmar cutaneous branch of the median nerve supply?

Which bones form the boundaries of the carpal tunnel?

What areas receive sensory fibers from the median nerve?

Cubital Fossa Anatomy

The cubital fossa is a depression on the anterior elbow, appearing as a superficial triangular space.
The fossa's deep structure contains varied amounts of fat anterior to the humerus and elbow joint.
The fossa's boundaries are defined by three distinct structures:
- Superiorly: A line connecting the medial and lateral epicondyles.
- Medially: The mass of flexor forearm muscles arising from the medial epicondyle (e.g., pronator teres).
- Laterally: The mass of extensor forearm muscles originating from the lateral epicondyle and supra-epicondylar ridge (e.g., brachioradialis).
The fossa's floor is composed of the brachialis muscle (arm) and supinator muscle (forearm).
The roof comprises interconnected brachial and antebrachial fascia reinforced by the bicipital aponeurosis, along with subcutaneous tissue and skin.

Cubital Fossa Contents

The brachial artery, the terminal portion, is centrally located and divides into the radial and ulnar arteries.
The brachial artery lies between the biceps tendon and median nerve.
Accompanying veins exist, running alongside the arteries.
The biceps brachii tendon is present.
The median nerve is contained within the fossa.
The radial nerve, positioned deeply between the lateral boundary muscles (brachioradialis) and the brachialis, further divides into superficial and deep branches.
The median cubital vein is found superficially, anterior to the brachial artery.
The medial and lateral cutaneous nerves are in the subcutaneous tissue, relating to the basilic and cephalic veins.

Test your knowledge of the anatomy of the cubital fossa with this quiz. Learn about its boundaries, contents, and the muscles associated with this important anatomical space in the elbow region. Perfect for students studying human anatomy and physiology.