This set of Tricky Human Anatomy Questions and Answers focuses on “Arteries of the Upper & Lower Extremity”.
1. The right subclavian artery arises from ___________
a) Subclavian artery
b) Common carotid artery
c) Arch of aorta
d) Branchiocephalic trunk
View Answer
Explanation: The arterial supply to upper limb begins in the chest as subclavian artery. The right subclavian artery arises from Branchiocephalic trunk, while left subclavian branches directly off the arch of the aorta.
2. Which artery is the main source of blood for the arm?
a) Ulnar artery
b) Radial artery
c) Brachial artery
d) Profunda branchii
View Answer
Explanation: Brachial artery is the main source of blood for arm. When axillary artery reaches the lower border of teres major it becomes brachial arteries.
3. Which artery contributes mainly to supply of thumb and lateral side of index finger?
a) Radial artery
b) Ulnar artery
c) Deep palmar arch
d) Brachial artery
View Answer
Explanation: Radial artery contributes mainly to supply of thumb and lateral side of index finger. Radial artery enters hand dorsally crossing the floor of anatomical sniffbox.
4. What muscle does axillary artery pass beneath?
a) Pectoralis minor
b) Pectoralis major
c) Sub scapularis
d) Biceps branchii
View Answer
Explanation: Pectoralis minor is a thin, triangular muscle situated at upper part of chest and beneath the Pectoralis major. It originates from 3rd and 5th ribs and inserts on coracoids process of the scapula.
5. Which clinical sign indicates ischaemia of forearm?
a) Volkmann’s Contracture
b) Ulnar claw
c) Hand of benediction
d) Carpel tunnel syndrome
View Answer
Explanation: Volkmann’s Contracture is a permanent flexion contracture of the hand at the wrist resulting in a claw like deformity of the hand and finger. Passive extension of fingers is restricted and painful.
6. What is the name of the deep artery of the arm?
a) Radial artery
b) Profunda branchii
c) Brachial artery
d) Axillary artery
View Answer
Explanation: Profunda branchii is the branch of brachial artery. It is the deep artery of arm.
7. Femoral artery is second largest artery in the body.
a) True
b) False
View Answer
Explanation: Femoral artery is second largest artery in the body. It is present in the thigh. It is the main arterial supply to the lower limbs. The first largest artery is aorta.
8. Which of the following artery provides blood supply to head and neck of femur?
a) Femoral
b) Lateral femoral circumflex
c) Medial femoral circumflex
d) External Illiac
View Answer
Explanation: Medial femoral circumflex arise from posterior aspect of profunda femoris artery. It is present in upper thigh that helps blood supply to neck and head of the femur.
9. From which artery does superior and inferior gluteal artery arise?
a) Internal Iliac
b) Obturator
c) Femoral
d) External Illiac
View Answer
Explanation: Internal Iliac is the main artery of pelvis. It was formerly known as hypogastric artery.
10. What is the name of a series of arteries which supply the blood to knee joints?
a) Pariarticular
b) Medial circumflex
c) Dorsalis Pedis
d) Genicular
View Answer
Explanation: Genicular artery refers to one of six arteries in human leg most of which anastomoses in the knee region.
11. Which artery carries blood to posterior compartment of legs?
a) Dorsalis Pedis
b) Posterior tibial artery
c) Lateral femoral circumflex
d) Internal Iliac
View Answer
Explanation: Posterior tibial artery of lower limb carries blood to posterior compartment of the leg and plantar surface of the foot.
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