객관식
Which artery is primarily responsible for supplying blood to the forearm and hand?
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1. Introduction to Anatomy & Physiology
Anatomical Terms for the Arm and Hand
객관식
Which artery is the main blood supply to the forearm and is commonly used for measuring pulse at the wrist?
A
Radial artery
B
Brachial artery
C
Ulnar artery
D
Axillary artery
검증된 단계별 안내1
Step 1: Understand the anatomy of the forearm and wrist. The forearm is supplied by two main arteries: the radial artery and the ulnar artery. These arteries branch from the brachial artery, which itself is a continuation of the axillary artery.
Step 2: Recall the location of the radial artery. The radial artery runs along the lateral (thumb-side) aspect of the forearm and is superficial near the wrist, making it easily accessible for pulse measurement.
Step 3: Compare the radial artery to the other options. The brachial artery is located in the upper arm, not the forearm. The ulnar artery runs along the medial (pinky-side) aspect of the forearm but is less commonly used for pulse measurement. The axillary artery is located in the armpit region and does not supply the forearm directly.
Step 4: Recognize that the radial artery is the most commonly used artery for measuring pulse at the wrist due to its superficial location and ease of palpation.
Step 5: Conclude that the correct answer is the radial artery, as it is the main blood supply to the forearm and is commonly used for pulse measurement at the wrist.
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