Correct Answer - C
Ans. is 'c' i.e., Cricopharynx

Inferior constrictor muscle has two parts :-

(i) Thyropharyngeous with oblique fibres, and
(ii) Cricopharyngeous
with transverse fibres.

Between these two parts of inferior constrictor exists a potential gap
called Killan's dehiscence. It is also called the gateway to tear as
perforation can occur at this site during esophagoscopy. It is also the site for herniation of pharyngeal mucosa in case of pharyngeal
pouch.

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Correct Answer - D
Ans. is 'd' i.e., IV

The gall bladder lies on the inferior surface of the liver closely
related to segment IV or the quadrate lobe.

Anatomically liver is divided into a large right lobe and a small left
lobe by line of attachment of falciform ligament (anterosuperiorly), fissure for ligamentum teres (inferiorly), and fissure for ligamentum
venosum (posteriorly).
Right lobe is much larger and forms five sixth of liver and left lobe forms only one sixth.

Caudate lobe and quadrate lobe are parts of anatomical right lobe.

The physiological left lobe is composed of 4 segments designated Ito IV and is supplied by left branch of hepatic artery, left branch of portal vein and drained by left hepatic duct.

The physiological right lobe consists of segment V, VI, VII and VIII and is supplied by right hepatic artery, right branch of portal vein and drained by right hepatic duct

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Correct Answer - A
Ans. is '13' i.e., T4
Trachea bifurcates at carina, at the level of lower border of T4 or
T⁵ disc space.

Structure Cervico thoracic level
Tracheal bifurcation T4-T5

Arch of aorta Begins and ends at T4

Xiphoid process T9

Splenic axis Along 10th rib

Carotid bifurcation, Hyoid bone C3

Upper border of thyroid cartilage C4

Level of cricoids cartilage C6

Lumbar level
Celiac trunk T12 - L I
Superior mesenteric artery Ll
Transpyloric plane Lower border of Ll

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Correct Answer - C
Ans. is 'c' i.e., Pronator teres

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Correct Answer - B
Ans. is 'b' i.e., Diencephalon

Diancephalon forms - optic cup and stalk, pituitary, thalmus,
hypothalmus, epithalmus, pineal gland (or epiphysis), and 3rd
ventricle (most part).

Retina develops from walls of optic cup.

The outer thinner layer
becomes retinal pigmented epithelium and inner thicker layer forms neural layer of retina.

Forebrain (prosencephalon) consists of telencephalon (anterior or
rostral part) and diencephalon (posterior or caudal part).

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