Neurovasculature and lymph nodes of the neck

This tutorial explores the anatomy and function of arm muscles, focusing on those attached to the humerus. The muscles are divided into ventral and dorsal groups. The ventral group includes the biceps brachii, a two-headed muscle responsible for arm flexion and supination, and the brachialis, the strongest elbow flexor. The dorsal group consists of the triceps brachii, a three-headed muscle that extends the elbow, and the anconeus, which stabilizes the ulna. The video concludes with a call to explore more interactive resources on Kenhub.

Which of the following muscles is part of the ventral group of the upper arm?

• Deltoid

• Anconeus

• Biceps brachii

• Triceps brachii

What is the primary function of the biceps brachii?

• Stabilization of the ulna

• Extension of the elbow

• Abduction of the shoulder

• Flexion and supination of the arm

Which muscle is known as the strongest flexor of the elbow joint?

• Brachialis

• Biceps brachii

• Anconeus

• Triceps brachii

What is the role of the triceps brachii in the arm?

• Supination of the forearm

• Flexion of the elbow

• Adduction of the shoulder

• Extension of the elbow

How does the anconeus muscle contribute to arm movement?

• It abducts the shoulder

• It pronates the forearm

• It stabilizes the ulna

• It flexes the elbow