4 physio_special senses, digestive, endocrine, reproductive

7/23/2019 4 Physio_Special Senses, Digestive, Endocrine, Reproductive

1/37

SPECIAL SENSESWhich of the following is true about r

A. Rods depolarize when light imping

retina

B. Useful for color vision

C. More sensitive to light than cones

D. Rods are thickly populated at the f

centralis


2/37

In dark adaptation:

A. Break down of rhodopsinB. Increased threshold for vision

C. No role for conesD. Dioptric power of the eye rema

unchanged


3/37

For a patient lying horizontally in a l

when the lift starts ascending, maxi

stimulation would be of his:

A. Horizontal semicircular canals

B. Vertical semicircular canalsC. Maculae of the utricles

D. Maculae of the saccules


4/37

Which of the following nuclei is

involved in both light reflex and

accomodation?

A. Pretectal nucleus

B. EdingerWestphal nucleusC. Suprachiasmatic nucleus

D.Supraoptic nucleus


5/37

Sound transduction by Organ of

is initiated by:A. Sodium influx

B. Potassium influx

C. Sodium efflux

D.Potassium efflux


6/37

One of the following is high in

Endolymph:

A. Na+

B. K+

C. Cl-

D. Ca++


7/37

In photogenic retinal visual cycle, the

photometabolite that is responsible f

electrical stimulation of the rods is:

A. Metarhodopsin I

B. Metarhodopsin IIC. Lumirhodopsin

D. Bathorhodopsin


8/37

DIGESTIVE SYSTEM

Gastro-colic reflex is related toA. Mass peristalsis

B. Segmentation contractionsC. Pendular movement

D irritable bowel


9/37

Which of the following has the

highest pH?

A. Gastric juice

B. Bile in the gallbladder

C. Pancreatic juice

D. Saliva


10/37

Glucose absorption from the gut

occurs by:

A. simple diffusion

B. facilitated diffusion

C. primary active transport

D. secondary active transport


11/37

Which of the following inhibits both g

acid secretion and motility?

A. Vasoactive intestinal poly peptide

B. Gastric inhibitory peptide (GIP)

C. Somatostatin

D. Ghrelin


12/37

Gastric emptying is decreased

all of the following EXCEPT:A.Protein breakdown product

B.CCKC. Enterogastric reflexes

D Gastrin


13/37

Highest concentration of the

are present inA.Gastric juice

B.Pancreatic juiceC.Bile

D Saliva


14/37

Which of the following motor eve

integrated entirely within the EN

A. Intesto-intestinal reflex

B. Recto-sphincteric reflex

C. Gastro-ileal reflex

D. Peristaltic reflex


15/37

In the intestines, Paneth cells se

A.Mucous

B.5-HT

C. Defensins

D.Electrolytes


16/37

Which of the following is NOT

constituent of the succus enter

A. Erepsin

B. enterokinase

C. invertase

D. trypsin


17/37

All of the following statements are tru

Intestinal Motility except:

A. It does not depend on gastric moti

B. It is increased by distension of a se

of the small intestine

C. It is increased by Acetylcholine

D. It is increased by cholecystokinin


18/37

Iron is actively absorbed ma

in:

A.Stomach

B.Duodenum

C.jejunum

D Ileum


19/37

Lower esophageal sphincter

A. Has no tonic activity

B. Has a tone which is provided by

sympathetic system

C. Relaxes on increasing abdominpressure

D Relaxes ahead of the peristaltic


20/37

If the proportion of the dietary fiber/rough

high in a diet, it will:

A. Decrease the stool transit time in the coB. Decrease the food/chyme transit time in

small intestine

C. Increase the glycemic response to acarbohydrate meal

D. Increase entero-hepatic circulation of bi


21/37

Cholecystokinin causes all of the

following EXCEPT:

A. Gall bladder contraction

B. Pancreatic enzyme secretion

C. Increases gastrin secretion

D. Increases small intestinal mo

ENDOCRINE SYSTEM REPRODU


22/37

ENDOCRINE SYSTEM, REPRODU

SYSTEM

True about laron dwarfism is:A. Growth hormone deficiency

B. Growth hormone insensitivity

C. Plasma IGF-1 is markedly incre

D. None of the above

C t d f b t h


23/37

Correct order of puberty changes

is:

A. PubarcheMenarcheThelarc

B. Thelarche Menarche Puba

C. ThelarchePubarcheMenarcD. MenarchePubarcheThelarc

Ans: (C)


24/37

Major estrogen secreted by the ov

A. EstriolB. Estradiol

C. EstroneD. Ethinylestradiol


25/37

Insulin release is inhibited by:

A. SomatostatinB. Glucagon

C. Acetylcholine

D. Amino acids


26/37

Insulin dependent glucose uptak

occurs in:A. Muscle

B. Epithelial cells of small intesti

C. Brain

D. Kidney


27/37

Which of the following exerts max

effect on parathyroid hormone

secretion?

A. Calcitonin

B. Plasma calciumC. Plasma phosphate

D 1 25-dihydroxycholecalciferol


28/37

Dwarfism is caused by all EXCEPT

A. Thyroid deficiency

B. Growth hormone deficiency

C. Castration before puberty

D. GH-receptor unresponsiveness

Ans: (C)


29/37

The Iodine is transported into the

thyroid gland by:

A. Active transport

B. Simple diffusion

C. Pinocytosis

D. Receptor-mediated endocytos


30/37

All of the following have both a a

subunits EXCEPT:

A.TRH

B.LH

C.FSH

D.hCG


31/37

All are true about Leptin EXCEP

A. It increases appetite

B. it is increased in obesity

C. its receptor is in hypothalam

D. Expressed only in adipose tis

ANS: (A)


32/37

hCG levels reach the peak in materna

serum at:

A.30-40 days

B.40-90 days

C.90-110 daysD.110-130 days

Ans: (B) [10 weeks; then decline]


33/37

Substrate controlled hormone

A.Glucagon

B.FSH

C.LH

D.TRH


34/37

Which of the following is structurally

to growth hormone?

A. Insulin

B. Human Placental lactogen

C. SomatostatinD. Human chorionic gonadotropin

Ans: B; 191 amino acids


35/37

Sertoli cells in the testis have rece

for

A. FSH

B. LH

C. Inhibin

D. Estrogen

B f th t f b t th G R


36/37

Before the onset of puberty, the GnR

neurons are under the inhibitory con

A. GlycineB. Glutamate

C. Gamma amino butyric acid (GABA)

D. Beta-endorphin

Ans: C, D, and melatonin.


37/37

Hypocalcemia is characterized by all E

A. Numbness and tingling of circumor

region.

B. Hyperactive tendon reflexes and p

Chvostek's sign.

C. Shortening of Q-T interval in ECG.

D. Carpopedal spasm

4 physio_special senses, digestive, endocrine, reproductive

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