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Multiple Choice
Which anatomical feature is located on the anterior surface of the right humerus and serves as the attachment site for the biceps brachii muscle?
A
Deltoid tuberosity
B
Radial tuberosity
C
Coronoid fossa
D
Intertubercular sulcus (bicipital groove)
Verified step by step guidance
1
Step 1: Begin by identifying the anatomical location of the humerus. The humerus is the long bone in the upper arm, connecting the shoulder to the elbow.
Step 2: Understand the anterior surface of the humerus. This is the front-facing side of the bone when viewed in anatomical position.
Step 3: Recall the function of the biceps brachii muscle. It is a major muscle of the upper arm responsible for flexion of the elbow and supination of the forearm. Its tendon attaches to a specific feature on the humerus.
Step 4: Learn about the intertubercular sulcus (bicipital groove). This is a groove located on the anterior surface of the humerus, between the greater and lesser tubercles. It serves as the attachment site for the tendon of the biceps brachii muscle.
Step 5: Compare the intertubercular sulcus to the other options provided (deltoid tuberosity, radial tuberosity, coronoid fossa). Note that these features are located on different parts of the humerus or other bones and do not serve as the attachment site for the biceps brachii muscle.