523. ‘P’ wave in ECG recording is caused due to:

1. Atrial depolarization.

2. Atrial repolarization.

3. Ventricular depolarization.

4. Ventricular repolarization. 

519. Delta waves of electroencephalogram have frequency of:

1. More than 14 cycles per second. 
2. Between 8 and 13 cycles per second. 
3. Less than 3.5 cycles per second. 
4. Between 4 and 7 cycles per second.

516. An animal is made diabetic by injection of a drug that destroys pancreatic ß cells. Removal of which of the following organs would most likely produce a decrease in blood glucose concentration in this animal?

A.  Anterior pituitary   
B.  Colon   
C.  Gonads   
D.  Kidney   
E.  Pancreas

504.Transport of neutral molecules is through:

 1.Porin channels.    
 2.Ionophores.    
  3.Diffusion.      
 4.None of the above.

469.Substance P is released in response to pain in periphery

a.Nerve terminalis
b.Mast cells
c.Endothelium
d.Plasma

Ans-a.Nerve terminalis

Ref -Ganong's review of medical physiology 23 rd ed pg 112

446.Hyponatremia with increased sodium body content is seen in

a.Diuretic administration
b.Tubular acidosis
c.Vomitting
d.Nephrotic syndrome


Ans-d.Nephrotic syndrome

254.Which of the following statement about Carbon monoxide poisoning is true?

a) Hypoxic hypoxia
b) Curve shift towards left
c) Curve shifts to the right
d) Oxygen binding increases

Ans-c) Curve shifts to the right

253.The processing of short term memory to long term memory is done in?

a) Prefrontal cortex
b) Hippocampus
c) Neocortex
d) Amygdala

Ans-b) Hippocampus

Explanation:(Ref:Ganong 26th edition Pg 269)

246. Spirometery cannot be used to measure

a.Functional residual capacity
b.Residual volume
c.Total lung capacity
d.All

Ans-d.All

237.The blood brain barrier is present in all except

a.Postrema area
b.Subfornical organ
c.Neurohypophysis
d.Habernacular trigone

Ans-d.Habernacular trigone


Explanation:Refer ganong's physiology 22ed pg 615
Remember SONA OR SOAP Subfornical organ
Organum vasculosum
area postrema
posterior pituitary/neurohypophsis

228.Which of the following increases turbulence in blood flow?

a.Reynold's number less than 2000.
b.Decrease in the velocity of the blood.
c.Decrease in density of the blood.
d.Increase in the diameter of blood vessel.

Ans-d.Increase in the diameter of blood vessel.

Explanation-Ref ganong22/ed pg 583
reynold's no=density *diameter*velocity/viscosity

222.The nucleus involved in papez circuit is

a.Pulvinar
b.Intraluminar
c.VPL nucleus
d.Anterior nucleus of thalamus.

Ans:d.Anterior nucleus of thalamus.

Explanation:Ref Ganong's 22nd ed/256,258

80. Which of the following hormones is secreted by anterior pituitary cells that stain with acidic dyes?

A. ACTH B. FSH
C. LH D. Prolactin

E. TSH

ANS. D. The cells of the anterior pituitary can be classified as chromophils (stain
with dyes) or chromophobes (do not stain with dyes). The chromophils can be further divided inacidophils (stain with acidic dyes) and basophils (stain with basic dyes). The acidophils include thesomatotrophs, which secrete growth hormone, and the mammotrophs, which secrete prolactin.The basophils include the corticotrophs, which secrete ACTH (choice A), the gonadotrophs, which secrete FSH and LH (choices B and C), and the thyrotrophs, which secrete TSH (choice E).

FOR MORE IN DENTISTRY: VISIT

RxDENTISTRY
LOVEHUES
DENTAL MATRIX

76.Damage to which of the following structures might produce hair cell loss?

A.Basilar membrane B.Organ of Corti
C.Reissner's membraneD.Scala tympani
E.Scala vestibuli

ANS B.

Hearing is the detection of sound, which consists of pressure waves

conducted through air or water. The receptors of the cochlear duct provide us with a sense of hearing

that allows us to detect the quietest whisper and yet remain functional in a crowded, noisy

environment. The organ of Corti contains hair cells from the cochlear branch of the vestibulocochlear

nerve (CN VIII). These cells rest on the basilar membrane (choice A), which separates the scala

tympani (choice D) from the scala media. The hair cells are embedded in the tectorial membrane,

and movement of the basilar membrane below the cells causes the hairs to bend, which generates

action potentials. The tectorial membrane that lies on the hair cells does not form a boundary between

the different scala; the membrane separating the scala media from the scala vestibuli (choice E) is

Reissner's (vestibular) membrane (choice C).

1H

FOR MORE IN DENTISTRY: VISIT

RxDENTISTRY
LOVEHUES
DENTAL MATRIX

58.Which of the following structures is lined with epithelium derived from mesoderm of the ureteric bud?

A. Bowman's capsule b. Distal convoluted tubule

C. Loop of Henle D. Ureter

ANS. D. The transitional epithelium that lines the ureter, the renal pelvis, and the major and minor calyces is derived from mesoderm of the ureteric bud, as is the cuboidal epithelium of the collecting tubules. The simple squamous epithelium lining Bowman's capsule (choice A) is derived from mesoderm of the metanephric vesicle. The simple cuboidal epithelium lining the distal convoluted tubule (choice B) is derived from mesoderm of the metanephric vesicle. The simple squamous epithelium lining the loop of Henle (choice C) is derived from mesoderm of the metanephric vesicle.

FOR MORE IN DENTISTRY: VISIT

RxDENTISTRY
LOVEHUES
DENTAL MATRIX

50.In a obese person, BMI is :

a)>10 b)>20
c)>30 d)>40


ANS: C


FOR MORE IN DENTISTRY: VISIT

RxDENTISTRY
LOVEHUES
DENTAL MATRIX

45.Uppermost structure seen at the hilum of the left lung is:

a. Pulmonary artery b. Pulmonary vein

c. Bronchus d. Bronchial artery

ANS.A

FOR MORE IN DENTISTRY: VISIT

RxDENTISTRY
LOVEHUES
DENTAL MATRIX