NEET-PG 2013 Previous Year Questions Practice Questions

Q: Terminal branches of the internal carotid artery are all except?

Ophthalmic artery. ***Ophthalmic artery*** - The **ophthalmic artery** is a **branch** (not a terminal branch) of the internal carotid artery that arises shortly after the ICA emerges from the cavernous sinus. - It enters the orbit through the optic canal to supply the eye, orbit, and surrounding structures. - Terminal branches are the **final divisions** of a vessel, not branches that arise earlier in its course. *Anterior cerebral artery* - The **anterior cerebral artery (ACA)** is one of the **two terminal branches** of the internal carotid artery. - It supplies the medial surfaces of the frontal and parietal lobes. - It arises at the terminal bifurcation of the ICA in the supraclinoid region. *Middle cerebral artery* - The **middle cerebral artery (MCA)** is the other **terminal branch** of the internal carotid artery. - It is the larger of the two terminal branches and supplies the lateral surfaces of the cerebral hemispheres. - It supplies critical areas including the motor and sensory cotices. *Posterior communicating artery* - The **posterior communicating artery (PCoA)** arises near the terminal bifurcation of the ICA and connects it to the posterior cerebral artery. - While technically a branch (not terminal), it arises very close to the terminal bifurcation point. - It is part of the circle of Willis, providing collateral circulation between anterior and posterior cerebral circulation. [Practice more NEET-PG 2013 questions on OnCourse]

Q: Boundaries of the anatomical snuff box are all except

ECU. ***ECU*** - The **extensor carpi ulnaris (ECU)** is not a boundary of the anatomical snuff box. Its tendon inserts into the base of the 5th metacarpal, medial to the snuffbox [1][2]. - The ECU's function is **wrist extension** and **ulnar deviation**, and it does not form part of the snuffbox's borders [1]. *APL* - The **abductor pollicis longus (APL)** tendon forms the **anterior (radial) boundary** of the anatomical snuff box [1][2]. - It inserts into the base of the 1st metacarpal and is responsible for **abducting the thumb** [1]. *EPL* - The **extensor pollicis longus (EPL)** tendon forms the **posterior (ulnar) boundary** of the anatomical snuff box [1][2]. - It inserts into the distal phalanx of the thumb and is responsible for **extending the thumb interphalangeal joint**. *EPB* - The **extensor pollicis brevis (EPB)** tendon forms part of the **anterior (radial) boundary** along with the APL [1][2]. - It inserts into the proximal phalanx of the thumb and aids in **extending the thumb metacarpophalangeal joint** [1]. [Practice more NEET-PG 2013 questions on OnCourse]

Q: What is the major apolipoprotein of chylomicrons?

B-48. ***B-48*** - **Apolipoprotein B-48** is exclusively produced in the intestine and is the **major structural apolipoprotein** found only on **chylomicrons**. - It is critical for the **assembly and secretion of chylomicrons** from intestinal cells into the lymphatic system. - ApoB-48 represents the N-terminal 48% of ApoB-100 and lacks the LDL receptor-binding domain. *B-100* - **Apolipoprotein B-100** is synthesized in the liver and is the primary structural apolipoprotein of **VLDL, IDL, and LDL**. - It acts as the **ligand for the LDL receptor**, facilitating the uptake of cholesterol into cells. *Apo-C* - **Apolipoprotein C (Apo-C)** proteins (e.g., ApoC-II, ApoC-III) are exchangeable apolipoproteins found on several lipoproteins, including chylomicrons, VLDL, and HDL. - **ApoC-II activates lipoprotein lipase**, which hydrolyzes triglycerides, but these are **not structural proteins** and are present in smaller quantities. *Apo-E* - **Apolipoprotein E (Apo-E)** is acquired by chylomicrons in circulation and is important for **chylomicron remnant clearance** by the liver. - While present on chylomicrons, it is **not the major structural apolipoprotein** – that role belongs to ApoB-48. [Practice more NEET-PG 2013 questions on OnCourse]

Q: Killion's incision is used for?

Septoplasty. ***Septoplasty*** - Killion's incision is a **hemitransfixion incision** performed on one side of the caudal nasal septum for **septoplasty**. - This incision allows for elevation of the **mucoperichondrial flap** and access to the septal cartilage for straightening. *SMR* - **Submucous resection (SMR)** typically utilizes a **transfixion incision** or a **hemitransfixion incision** at the caudal end of the septum, but the term "Killion's incision" specifically refers to one type of hemitransfixion used in septoplasty. - SMR often involves more aggressive removal of cartilage and bone compared to modern septoplasty techniques, although both aim to correct septal deviation. *Proetz puncture* - **Proetz puncture** refers to a procedure that involves puncturing the maxillary sinus through the inferior meatus for irrigation and drainage, and it is unrelated to septal surgery. - It is a diagnostic and therapeutic procedure for **sinusitis**, with no external incision on the septum. *Modified radical mastoidectomy* - A **modified radical mastoidectomy** is a surgical procedure for chronic ear disease, involving an incision behind the ear (**post-aural incision**) or within the ear canal (**endaural incision**), which is completely unrelated to nasal septal surgery. - This procedure aims to create a **safe and dry ear** by exteriorizing the mastoid air cells and reducing the size of the middle ear space. [Practice more NEET-PG 2013 questions on OnCourse]

Q: Congenital passive immunity is INADEQUATE in -

Pertussis. ***Pertussis*** - **Congenital passive immunity** against *Bordetella pertussis* is **most inadequate** among the listed infections. - **Minimal transplacental transfer** of protective IgG antibodies occurs, and maternal antibodies decline rapidly in infants. - Newborns have **virtually no protection** from maternal antibodies, making them highly susceptible to severe whooping cough. - This is why **early vaccination at 6 weeks** is critical, unlike measles which can wait until 9-12 months. *Measles* - Maternal antibodies provide **excellent passive immunity** protecting infants for **6-9 months**. - This robust protection is why measles vaccination is delayed until 9-12 months of age. - Represents the **gold standard** of effective maternal antibody transfer. *Mumps* - Maternal antibodies provide **good passive immunity** in early infancy. - Mumps in young infants is rare due to this maternal protection. *RSV (Respiratory Syncytial Virus)* - Maternal antibodies provide **limited but present** passive immunity. - Unlike pertussis where protection is nearly absent, RSV maternal antibodies can **reduce severity** of illness. - However, RSV remains a major cause of bronchiolitis in infants despite this partial protection. - The key difference: RSV has **some** maternal protection (inadequate but present), whereas pertussis has **almost none** (most inadequate). [Practice more NEET-PG 2013 questions on OnCourse]

Question 1

Terminal branches of the internal carotid artery are all except?

Accepted Answer

Ophthalmic artery

Answer

Anterior cerebral artery

Answer

Middle cerebral artery

Answer

Posterior communicating artery

Question 2

Boundaries of the anatomical snuff box are all except

Accepted Answer

ECU

Answer

APL

Answer

EPL

Answer

EPB

Question 3

What is the major apolipoprotein of chylomicrons?

Accepted Answer

B-48

Answer

B-100

Answer

Apo-C

Answer

Apo-E

Question 4

Killion's incision is used for?

Accepted Answer

Septoplasty

Answer

SMR

Answer

Modified radical mastoidectomy

Answer

Proetz puncture

Question 5

Congenital passive immunity is INADEQUATE in -

Accepted Answer

Pertussis

Answer

Measles

Answer

Mumps

Answer

RSV (Respiratory Syncytial Virus)

Question 6

Which of the following organisms does not fulfill Koch's postulates?

Accepted Answer

T. pallidum

Answer

E.coli

Answer

M. tuberculosis

Answer

All of the options

Question 7

Uterine rupture is least common with which of the following surgical techniques?

Accepted Answer

LSCS

Answer

Classical section

Answer

T Shaped incision

Answer

Inverted T shaped incision

Question 8

Clear cell variety of renal cell carcinoma is related to a gene located on which chromosome?

Accepted Answer

3

Answer

X

Answer

22

Answer

20

Question 9

Job's syndrome is which of the following types of immunodeficiency disease?

Accepted Answer

Disorder of phagocytosis

Answer

humoral immunodeficiency

Answer

Cellular immunodeficiency

Answer

Disorder of complement

Question 10

A person presents to the outpatient department with tremors and visual hallucinations after a 2-day history of alcohol cessation. What is the diagnosis?

Accepted Answer

Delirium tremens

Answer

Korsakoff’s psychosis

Answer

Wernicke encephalopathy

Answer

Alcoholic hallucinosis

NEET-PG 2013

Anatomy

Biochemistry

Dental

Microbiology

Obstetrics and Gynecology

Pathology

Psychiatry