Biceps brachii muscle

The video discusses the biceps brachii muscle, commonly known as the biceps, located between the shoulder and elbow. It explains the etymology of the name, highlighting its two-headed structure: the long head and the short head. The long head originates at the supraglenoid tubercle, while the short head goes over the coracoid process. Both heads unite at the humerus and attach to the radial tuberosity. The biceps brachii's main functions are elbow flexion and forearm supination, and it is innervated by the musculocutaneous nerve.

What is the common name for the biceps brachii muscle?

• Quadriceps

• Deltoid

• Biceps

• Triceps

What does the term 'bicep' mean?

• One head

• Two heads

• Four heads

• Three heads

Where does the long head of the biceps brachii originate?

• Coracoid process

• Humerus

• Radial tuberosity

• Supraglenoid tubercle

What is the main function of the biceps brachii?

• Flex the wrist

• Extend the elbow

• Flex the elbow and supinate the forearm

• Rotate the shoulder

Which nerve innervates the biceps brachii?

• Musculocutaneous nerve

• Ulnar nerve

• Radial nerve

• Median nerve