Question

fill in the blank question

the floor of the intertubercular sulcus of the humerus is an attachment site for the muscle called the dorsi.

Explanation:

Identify the anatomical landmark

The question asks for the muscle that attaches to the floor of the intertubercular sulcus (also known as the bicipital groove) of the humerus.

Determine the muscle attachment

Three major muscles attach to the intertubercular sulcus of the humerus, often remembered by the mnemonic "a lady between two majors":

• Pectoralis major attaches to the lateral lip.
• Teres major attaches to the medial lip.
• Latissimus dorsi (the "lady") attaches to the floor of the groove.

Match with the sentence structure

The sentence ends with "dorsi." The muscle name is "latissimus dorsi." Therefore, the missing word to fill in the blank before "dorsi" is "latissimus".

Answer:

The floor of the intertubercular sulcus of the humerus is an attachment site for the muscle called the <blank>latissimus</blank> dorsi.