Question # 1

It is incorrect statement about hormones

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Endocrine secretion

Initiate metabolism

Organic

Transported by blood

Question # 2

Which of the following is a messenger of both chemical and nervous coordination

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Acetylcholine

Dopamine

Epinephrine

Serotonin

Question # 3

Ventral root of the spinal nerve contains

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Sensory nerve fibres

Motor nerve fibres

Mixed nerve fibres

All

Question # 4

Depolarization of neural membrane is due to

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Influx of K+

Efflux of Na+

Influx of Na+

None

Question # 5

It lacks a true dendron

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Sensory neuron

Motor neuron

Associative neuron

Relay neuron

Question # 6

Which is correct about myelin sheath

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It speeds up conduction

It is found in all axons

It is found in all dendrites

It is proteinaceous only

Question # 7

Which is incorrect about resting membrane potential

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Na+ ions are ten folds higher outside

2 Na+ move out for 3 K+ move in

K+ ions are twenty folds higher inside

Some k+ ions leak out

Question # 8

These are the receptors which respond to the mechanical condition of internal organs

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Nocireceptors

Receptors of skin

Receptors of stomach wall

Receptors of eye

Question # 9

Decrease in progesterone level in blood stimulates the secretion of

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Estrogen

FSH

Cortisol

Oxytocin

Question # 10

They may also control some long term changes

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Enzymes

Neurons

Hormones

CNS

Question # 11

The receptors which are 27 times more abundant than cold receptors

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Pressure receptors

Pain receptors

Heat receptors

Light receptors

Question # 12

The hormone which is not secreted by anterior lobe of pituitary is

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GH

ICSH

Prolactin

TRF

Question # 13

Which of the following hormone affects the supply of testosterone

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LH

GH

FSH

Aldosterone

Question # 14

Regulation of hunger and menstrual cycle is controlled by

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Cerebrum

Thalamus

Hypothalamus

Pons

Question # 15

Which hormone require 2nd messenger

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Insulin

Estrogen

Progesterone

Testosterone

Question # 16

Puffiness of hands is the character of

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Graves disease

Addinsons disease

Myxedema

Cretinism

Question # 17

Hormones secreted by follicles in female

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Estrogen

Progesterone

FSH

Both a and b

Question # 18

Osteoporosis is caused by lack of

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ADH

Melanin

Estrogen

STH

Question # 19

Motor neurons are

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Multipolar

Bipolar

Unipolar

Tripolar

Question # 20

The simplest reflex circuit includes___ elements

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1

2

3

4

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MDCAT Biology Chapter 5 Coordination and control/ nervous & chemical Coordination Online Test

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