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Multiple Choice
Which of the following is a prominent bony projection on the scapula that serves as an attachment site for muscles of the shoulder?
A
Coracoid process
B
Olecranon process
C
Radial tuberosity
D
Medial epicondyle
Verified step by step guidance
1
Understand the anatomy of the scapula: The scapula, or shoulder blade, is a triangular-shaped bone located in the upper back. It has several bony projections that serve as attachment sites for muscles involved in shoulder movement.
Identify the coracoid process: The coracoid process is a small, hook-like bony projection on the anterior (front) surface of the scapula. It serves as an attachment site for muscles such as the pectoralis minor, coracobrachialis, and the short head of the biceps brachii.
Compare the other options: The olecranon process is part of the ulna (forearm bone) and serves as an attachment site for the triceps brachii. The radial tuberosity is a bony prominence on the radius (another forearm bone) and serves as an attachment site for the biceps brachii. The medial epicondyle is a bony projection on the humerus (upper arm bone) and serves as an attachment site for forearm muscles.
Eliminate incorrect answers: Since the olecranon process, radial tuberosity, and medial epicondyle are not part of the scapula, they cannot be the correct answer. The coracoid process is the only option that fits the description of a bony projection on the scapula.
Conclude the reasoning: Based on the anatomical location and function, the coracoid process is the correct answer as it is a prominent bony projection on the scapula that serves as an attachment site for shoulder muscles.