Neural Control and Coordination Test

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Neural Control and Coordination Test - 54

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Weekly Quiz Competition

Question 1
1 / -0

Cells of the nervous system that are specialized to provide support arid protection are known as

A
Schwann cells

B
Axons

C
Neurons

D
Neuroglia

Solution

Neurons feature many thin projecting fibres called axons, which penetrate deep into tissues. They are able to communicate with other cells by chemical or electrical means at synapses. Neuronal function is supported by neuroglia, specialized cells which provide nutrition, mechanical support, and protection.
So, the correct option is 'Neuroglia'.
Question 2
1 / -0

Choose the correct answer from the alternatives given.
Grey matter is

A
located on the outside of the spinal cord

B
restricted to the brain

C
populated by cell bodies of neurons

D
found in the ventricles of the vertebrate brain

Solution

Grey matter is a major component of the central nervous system, consisting of neuronal cell bodies, neuropil, glial cells, synapses, and capillaries.
So, the correct option is 'populated by cell bodies of neurons'.
Question 3
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Choose the correct answer from the alternatives given.
Which of the following structures or regions is incorrectly paired with its function?

A
Brocas regions-screening of information between the spinal cord and the brain regulates arousal and sleep

B
Medulla oblongata - homeostatic control centres

C
Cerebellum - unconscious co-ordination of movement and balance

D
Hypothalamus - production of hormones and regulation of temperature, hunger, and thirst

Solution

Broca's area is a region in the frontal lobe of the dominant hemisphere, usually the left, of the brain with functions linked to speech production.
So, the correct option is 'Broca's region - Screening of information between the spinal cord and the brain regulates arousal and sleep'.
Question 4
1 / -0

_________ is a decrease in the response to an ongoing stimulus.

A
perception

B
visual accommodation

C
sensory adaptation

D
both (b) and (c)

Solution

Neural adaptation or sensory adaptation is a change over time in the responsiveness of the sensory system to a constant stimulus. It is usually experienced as a change in the stimulus that is, the responsiveness to constant stimulus is decreased or stop
So, the correct option is 'Sensory adaptation'
Question 5
1 / -0

Which of the following is an incorrect statement about the human eye?

A
Vitreous humor regulates the amount of light entering the pupil

B
Fovea is the center of the visual field and contains only cones

C
Ciliary muscle functions in accommodation

D
Retina lies just inside the choroid and contains the photoreceptor cells

Solution

The vertebrate retina is inverted in the sense that the light sensing cells are in the back of the retina so that light has to pass through layers of neurons and capillaries before it reaches the rods and cones.
So, the correct option is 'Ciliary muscle function in accommodation'.
Question 6
1 / -0

The autonomic ganglion, which houses the synapse for the Parasympathetic division of the autonomic nervous system, is the

A
prevertebral ganglion

B
terminal ganglion

C
sympathetic trunk ganglion

D
parasympathetic trunk ganglion

Solution

Motor neurons of the autonomic nervous system are found in autonomic ganglia. The activity of autonomic ganglionic neurons is modulated by preganglionic neurons located in the central nervous system.
So, the correct option is 'terminal ganglion'.
Question 7
1 / -0

The inner layer of the human eyeball includes the

A
Lens and choroid

B
Retina

C
Sclera and cornea

D
Both (a) and (c)

Solution

The eye is made up of three coats, or layers enclosing various anatomical structures. The outermost layer known as the fibrous tunic is composed of the cornea and sclera. The innermost layer is made up of the choroid, ciliary body, and retina.
So, the correct option is 'retina'.
Question 8
1 / -0

Which of the following is not a sympathetic effect?

A
Increased blood pressure

B
Increased storage of glycogen from glucose

C
Increased heart rate

D
Increased constriction of the blood vessels

Solution

The parasympathetic nervous system decreases respiration and heart rate and increases digestion. Stimulation of the parasympathetic nervous systems results in the construction of pupils. Salivation, decrease heart rate and blood pressure.
So, the correct option is 'Increased storage of glycogen from glucose'.
Question 9
1 / -0

Parasympathetic and sympathetic nerves, to bring about minor adjustments in internal organ activity

A
service entirely different internal organs

B
work antagonistically, most often

C
come into play only during a fight-flight response

D
none of the above

Solution

The parasympathetic nervous system decreases respiration and heart rate and increases digestion. Stimulation of the parasympathetic nervous systems results in the construction of pupils. Decrease heart rate and blood pressure.
So, the correct option is 'Work antagonistically, most often'.
Question 10
1 / -0

Choose the correct answer from the alternatives given.
Neurons m the autonomic nervous system include

A
two motor neurons and one ganglion

B
one motor neuron and two ganglia

C
two motor neurons and no ganglia

D
two motor neurons and two ganglia

Solution

Motor neurons of the autonomic nervous system are found in autonomic ganglia. The activity of autonomic ganglionic neurons is modulated by preganglionic neurons located in the central nervous system.
So, the correct option is 'two motor neurons and one ganglion'.

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Re-Attempt Weekly Quiz Competition

Neural Control and Coordination Test - 54

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Neural Control and Coordination Test - 54

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SHARING IS CARING

Question 1

Schwann cells

Axons

Neurons

Neuroglia

Solution

Question 2

located on the outside of the spinal cord

restricted to the brain

populated by cell bodies of neurons

found in the ventricles of the vertebrate brain

Solution

Question 3

Brocas regions-screening of information between the spinal cord and the brain regulates arousal and sleep

Medulla oblongata - homeostatic control centres

Cerebellum - unconscious co-ordination of movement and balance

Hypothalamus - production of hormones and regulation of temperature, hunger, and thirst

Solution

Question 4

perception

visual accommodation

sensory adaptation

both (b) and (c)

Solution

Question 5

Vitreous humor regulates the amount of light entering the pupil

Fovea is the center of the visual field and contains only cones

Ciliary muscle functions in accommodation

Retina lies just inside the choroid and contains the photoreceptor cells

Solution

Question 6

prevertebral ganglion

terminal ganglion

sympathetic trunk ganglion

parasympathetic trunk ganglion

Solution

Question 7

Lens and choroid

Retina

Sclera and cornea

Both (a) and (c)

Solution

Question 8

Increased blood pressure

Increased storage of glycogen from glucose

Increased heart rate

Increased constriction of the blood vessels

Solution

Question 9

service entirely different internal organs

work antagonistically, most often

come into play only during a fight-flight response

none of the above

Solution

Question 10

two motor neurons and one ganglion

one motor neuron and two ganglia

two motor neurons and no ganglia

two motor neurons and two ganglia

Solution

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