Correct Answer - C
Ans. C. Metanephros
Metanephros : This system will form the nephrons and parenchyma of the definitive kidney

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Correct Answer - A

Sympathetic nerve cells supplying the heart are located in the
intermediolateral horn of spinal segments T1 to T5.

Sympathetic supply is cardio-acceleratory, and on stimulation, they increase the heart rate, and also dilate coronary arteries.

Both parasympathetic and sympathetic nerves form the superficial and deep cardiac plexuses, the branches of which run along the coronary arteries to reach the myocardium.

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Correct Answer - D
All of the above

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Correct Answer - A
A i.e., Pulmonary artery

Arrangement of structures in the hilum is as follows -

l. Anterior to posterior (same on both side) :-(i) Superior
pulmonary (ii) Pulmonary artery, (iii) Bronchus

2. Superior to inferior -vein,

a) Right :- (i) Eparterial bronchus (superior most)' (ii) Pulmonary
artery, iii) Hlparterial bronchus, iv) Inferior pulmonary vein (inferior
most).

b) Left :- (i) Puhnonary artery (superior most), (ii) Primary/Principal bronchus (iii) Inferior pulmonary vein (inferior most)

Correct Answer - B
B. i.e. Median nerve
Common causes of median nerve palsy in carpal tunnel are carpal
tunnel syndrome (most common) and Innate dislocation.

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Correct Answer - A
Ans. is 'a' i.e.,Fourth ventricle [Ref Medical Dictionary, 2009
Farlex and Partners]

It is a shallow depression, of a blue color in the fresh brain,
lying laterally in the most rostral portion of the rhomboidal
fossa near the cerebral aqueduct; it lies near the lateral wall of
the fourth ventricle and consists of about 20,000 melaninpigmented neuronal cell bodies the norepinephrine-containing
axons of which have a remarkably wide distribution in the
cerebellum as well as in the hypothalamus and cerebral cortex.
Also called as locus cinereus, locus ferrugineus.

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

I )Upper arm (Deltoid)
5 cm distal to the acromion or
4 cm proximal to the insertion of
deltoid. This is to prevent injury to circumflex humeral nerve.

II Gluteal region
Upper outer (superolateral) quadrant. This is to avoid damage to superior and inferior gluteal vessels and sciatic nerve.

III Thigh (lateral aspect)
(vastus lateralis)
Infant :- Upper lateral quadrant of
thigh below GT
Adult :- Middle third of lateral aspect.

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

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Correct Answer - C
Ans. is'c'i.e., Constrictor pupillae [Ref: Gray's 39h/e p. 7101
Intraocular muscles (intraocular muscles)
→ Intraocular muscles are -

A) Muscles of iris
→ There are two types of muscles in iris that control the size
of pupil:

1. The iris sphinctor or constrictor pupillae (circular muscles):-
These muscles are innervated by the postganglionic parasympathetic fibres from Edinger westphal nucleus via 3'd nerve and ciliary ganglion. These muscles cause constriction of pupil (Miosis).

2. The iris dilator or dilator pupillae (radial muscles) → These
muscles are innervated by sympathetic system via postganglionic sympathetic fibres for the dilator pupillae from
neurons in the superior cervical ganglion. These muscles cause
pupillary dilatation (mydriasis).

B) Ciliary muscles;--> these are innervated by the postganglionic
parasympathetic fibers from EWN via 3rd nerve and ciliary ganglion. These muscles help in accommodation.

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