Question

What are the origins of the short head and long head of the biceps brachii muscle?

1) Coracoid process and supraglenoid tubercle
2) Coracoid process and lip of glenoid cavity
3) Supraglenoid tubercle and lip of glenoid cavity
4) Radial tuberosity

Answer 1

The short head and long head of the biceps brachii muscle originate from the coracoid process and supraglenoid tubercle of the scapula.

Step-by-step explanation:

The short head and long head of the biceps brachii muscle originate from the coracoid process and supraglenoid tubercle of the scapula. The short head originates from the coracoid process, which is a hook-like bony projection on the scapula that projects anteriorly. The long head originates from the supraglenoid tubercle, which is located on the superior border of the scapula, between the suprascapular notch and glenoid cavity.