Anatomy MCQs Past Papers | First Online Test of B48 First Year | mosaicbro.com
Anatomy MCQs Past Papers | First Online Test of B48 First Year
This is part of Chandka Medical College 1st Year Question Bank Past Paper Series Anatomy.
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Review Answers:
1
Regarding femoral sheath?
Correct Answer:B
Explanation:
The femoral sheath is derived from the fascia transversalis (anteriorly) and iliac fascia (posteriorly). It surrounds the femoral vessels (not nerve) and ends inferiorly by fusing with the adventitia of the vessels. The femoral canal (medial compartment) contains lymph nodes, not the lateral compartment.
2
The exocoelemic membrane is formed by?
Correct Answer:D
Explanation:
During week 2 of development, the hypoblast cells migrate to line the blastocyst cavity, forming the exocoelemic membrane (Heuser's membrane) and the primitive yolk sac.
3
Head of femur around fovea capitis is supplied by?
Correct Answer:D
Explanation:
The medial circumflex femoral artery (branch of profunda femoris) is the primary blood supply to the femoral head. The lateral circumflex supplies the neck and trochanters. Disruption of the medial circumflex can lead to avascular necrosis.
4
The inferior gluteal nerve supplies?
Correct Answer:A
Explanation:
The inferior gluteal nerve (L5-S2) exclusively innervates the gluteus maximus, the primary extensor and lateral rotator of the thigh. Damage causes difficulty in rising from sitting or climbing stairs.
5
Which muscle is supplied by sciatic and obturator nerve?
Correct Answer:C
Explanation:
Adductor magnus has dual innervation: the adductor part by the obturator nerve and the hamstring part by the tibial division of the sciatic nerve. This reflects its dual embryonic origin.
6
Hyaline cartilage is common and found in
Correct Answer:D
Explanation:
Hyaline cartilage forms the laryngeal cartilages (except epiglottis), tracheal rings, articular surfaces, and costal cartilages. It provides low-friction movement and structural support.
7
Regarding sciatic nerve?
Correct Answer:A
Explanation:
The sciatic nerve (L4-S3) is the largest nerve. It exits via the greater sciatic foramen below piriformis. It supplies the posterior thigh and leg/foot, not the medial thigh (obturator nerve's territory).