Neural Control and Coordination Test

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Neural Control and Coordination Test - 70

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Weekly Quiz Competition

Question 1
1 / -0

Conservation of energy take place by

A
Sympathetic autonomic nervous system

B
Parasympathetic autonomic nervous system

C
Reflex action

D
None of the above

Solution

Parasympathetic autonomic nervous system (PNS) responses are highly specific, as supported by the direct innervation of target organs. The PNS is inhibitory, and promotes energy conservation. The primary defense strategies supported by the PNS involve energy conservation. PNS activation promotes passive coping strategies, such as withdrawal or disengagement, dissociation and the immobility response. Examples of passive coping styles include physical or emotional withdrawal.
Question 2
1 / -0

Stimulation of sympathetic nervous system causes

A
Constriction of blood vessels and high blood pressure

B
Dilation of bronchi and pupil

C
Erection of hair

D
All of the above

Solution

Sympathetic nervous system stimulation causes vasoconstriction of most of the blood vessels, including those in the skin, the digestive tract, and the kidneys. The net effect of this is a shunting of blood away from the organs not necessary to the immediate survival of the organism and an increase in blood flow to those organs involved in intense physical activity. Fibres from the sympathetic nervous system innervate tissues in almost every organ system, providing regulatory function as dilation of pupil, inhibition of gut motility, and erection of hair.
Question 3
1 / -0

In rabbit, optic lobes are small, because the eye sight is controlled by

A
Temporal lobe

B
Occipital lobe

C
Frontal lobe

D
Parietal lobe

Solution

The occipital lobe is the visual processing center of the mammalian brain containing most of the anatomical region of the visual cortex. The occipital lobes are part of the forebrain. A significant functional aspect of the occipital lobe is that it contains the primary visual cortex. The optic lobes are especially prominent in fish and birds.
Question 4
1 / -0

Hippocampal lobes are the parts of

A
Olfactory lobes

B
Cerebrum

C
Cerebellum

D
Medulla oblongata

Solution

The hippocampus is the portion of the cerebral hemispheres in basal medial part of the temporal lobe. This part of the brain is important for learning and memory, for converting short term memory to more permanent memory and for recalling spatial relationships.
Question 5
1 / -0

If parasympathetic nerve of the rabbit is cut, then heart beat

A
Remains unaffected

B
Decreases

C
Increases

D
Stops

Solution

If parasympathetic nerve of the rabbit is cut, the most immediate effect would be an increase in heart rate. Also, the regulation of heart rate, contractile state, and conduction of electrical impulses through the heart would be impaired. The reason for the observed effects is that the vagus nerve carries important information to the heart from a part of the central nervous system called the parasympathetic nervous system. The parasympathetic nervous system is often considered the "rest and digest" system. It decreases heart rate, decreases how strongly the heart contracts with each beat, and decreases the rate at which electrical impulses are conducted through the heart.
Question 6
1 / -0

Which of the following is an example of the action of the autonomous nervous system?

A
Pupillary reflex

B
Knee Jerk response

C
Peristalsis of the intestines

D
All of the above

Question 7

1 / -0

Match column I with column II and select the correct answer.

	List I		List II
A	Nissl's granules	i	Astrocytes
B	Tract	ii	Cerebellum
C	Muscle tone	iii	Arachnoid
D	Star-shaped glial cells	iv	Dura mater
E	Outermost brain envelop	v	Mitochondria
		vi	Collection of nerve fibres
		vii	Repolarisation
		viii	Oligodendrocytes
		ix	Collection of cytons
		x	Ribosomes

A-x, B-ix, C-ii, D-i, E-iv

A-v, B-vi, C-vii, D-viii, E-iii

A-x, B-vi, C-ii, D-i, E-iv

A-v, B-vi, C-ii, D-i, E-iv

A-x, B-v, C-iii, D-i, E-v

Solution

Nissl granules are of rough endoplasmic reticulum with rosettes of free ribosomes, which are the site of protein synthesis.
Tract refers to the digestive tract or bundle of nerve fibers having a common origin and destination.
The cerebellum is the region of the brain that functions in controlling motor activities. It is concerned with balance, equilibrium, and muscle tone.
Astrocytes are the star-shaped glial cells of the central nervous system.
The outermost layer that envelops the arachnoid mater of the brain is called the dura mater.

So, the correct answer is option C.

Question 8
1 / -0

Given below is a table comparing the effects of sympathetic and parasympathetic nervous system for four features. which one feature is correctly matched?

Feature Sympathetic Parasympathetic
1. Salivary gland stimulates inhibits
2. Pupil of the eye dilates constricts
3. Heart rate decreases increases
4. Intestinal peristalsis stimulates inhibits

A
1

B
2

C
3

D
4

Solution

Parasympathetic innervation leads to pupillary constriction. A circular muscle called as the sphincter pupillae accomplishes this task. Sympathetic innervation leads to pupillary dilation. Dilation is controlled by the dilator pupillae, a group of muscles in the peripheral 2/3 of the iris.
Question 9
1 / -0

Autonomic nervous system controls

A
Conditioned reflexes

B
Functioning of spinal cord

C
Functioning of visceral organs

D
Reflex actions

Solution

The autonomic nervous system is the part of the nervous system, that supplies the internal organs, like blood vessels, stomach, intestine, liver, kidneys, bladder, genitals, lungs, pupils, heart, and sweat, salivary, and digestive glands.
This system works automatically (autonomously), without a person's conscious effort. The autonomic nervous system controls blood pressure, heart and breathing rates, body temperature, digestion, metabolism (thus affecting body weight), the balance of water and electrolytes (such as sodium and calcium), the production of body fluids (saliva, sweat, and tears), urination, defecation, sexual response, and other processes.
Question 10
1 / -0

Maximum refraction of light takes place at

A
Cornea

B
Lens

C
Iris

D
Aqueous humour

Solution

Refraction is the phenomenon which makes image formation possible by the eye as well as by cameras and other systems of lenses. Most of that refraction in the eye takes place at the first surface since the transition from the air into the cornea is the largest change in index of refraction which the light experiences. About 80% of the refraction occurs in the cornea and about 20% in the inner crystalline lens.

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	Feature	Sympathetic	Parasympathetic
1.	Salivary gland	stimulates	inhibits
2.	Pupil of the eye	dilates	constricts
3.	Heart rate	decreases	increases
4.	Intestinal peristalsis	stimulates	inhibits

Neural Control and Coordination Test - 70

Result

Neural Control and Coordination Test - 70

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SHARING IS CARING

Question 1

Sympathetic autonomic nervous system

Parasympathetic autonomic nervous system

Reflex action

None of the above

Solution

Question 2

Constriction of blood vessels and high blood pressure

Dilation of bronchi and pupil

Erection of hair

All of the above

Solution

Question 3

Temporal lobe

Occipital lobe

Frontal lobe

Parietal lobe

Solution

Question 4

Olfactory lobes

Cerebrum

Cerebellum

Medulla oblongata

Solution

Question 5

Remains unaffected

Decreases

Increases

Stops

Solution

Question 6

Pupillary reflex

Knee Jerk response

Peristalsis of the intestines

All of the above

Question 7

A-x, B-ix, C-ii, D-i, E-iv

A-v, B-vi, C-vii, D-viii, E-iii

A-x, B-vi, C-ii, D-i, E-iv

A-v, B-vi, C-ii, D-i, E-iv

A-x, B-v, C-iii, D-i, E-v

Solution

Question 8

1

2

3

4

Solution

Question 9

Conditioned reflexes

Functioning of spinal cord

Functioning of visceral organs

Reflex actions

Solution

Question 10

Cornea

Lens

Iris

Aqueous humour

Solution

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