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?
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1. Introduction to Anatomy & Physiology
Anatomical Terms for the Arm and Hand
Multiple Choice
Which of the following muscles is located in the brachial region of the arm?
A
Deltoid
B
Flexor carpi radialis
C
Biceps brachii
D
Pectoralis major
Verified step by step guidance1
Step 1: Understand the anatomical term 'brachial region.' The brachial region refers to the upper arm area, specifically the region between the shoulder and the elbow.
Step 2: Review the location and function of each muscle listed in the options:
- Deltoid: This muscle is located in the shoulder region and is responsible for arm abduction.
- Flexor carpi radialis: This muscle is located in the forearm and is involved in wrist flexion.
- Biceps brachii: This muscle is located in the brachial region (upper arm) and is responsible for flexing the elbow and supinating the forearm.
- Pectoralis major: This muscle is located in the chest and is involved in arm adduction and rotation.
Step 3: Identify which muscle is specifically located in the brachial region. Based on the anatomical descriptions, the biceps brachii is the muscle located in the upper arm (brachial region).
Step 4: Confirm the correct answer by cross-referencing the function and location of the biceps brachii with the definition of the brachial region. The biceps brachii fits both criteria.
Step 5: Conclude that the correct answer is 'Biceps brachii,' as it is the only muscle listed that is anatomically located in the brachial region of the arm.
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