Neural Control and Coordination Test

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Neural Control and Coordination Test - 52

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Weekly Quiz Competition

Question 1
1 / -0

Broca's area of frontal lobe is language centre for the

A
Comprehension of spoken words

B
Comprehension of written words

C
Cognitive skills

D
All of the above
Solution
- Broca's gyrus is an area situated in the lower part of the left frontal lobe of the brain.
- It is responsible for the production of words and speech and hence, helps in language processing.
- Broca's area along with Wernicke's areas helps in the production and comprehension of speech.
- So, the correct answer is 'Comprehension of spoken words'.
Question 2
1 / -0

The area that controls ability to talk is speech centre of

A
Temporal lobe

B
Parietal lobe

C
Frontal lobe

D
All of the above
Solution
- Broca's gyrus is an area situated in the lower part of the left inferior frontal lobe of the brain.
- It is responsible for the production of words and speech and hence, helps in language processing and the ability to talk.
- So, the correct answer is 'Frontal lobe'.
Question 3
1 / -0

The primary visual area is located in

A
Temporal lobe

B
Occipital lobe

C
Frontal lobe

D
Parietal lobe

Solution

The cerebral cortex is divided into four major lobes known as the frontal lobe, parietal lobe, temporal lobe and occipital lobe. The occipital lobes are the visual processing center of mammalian brains. The occipital lobes are the smallest of four true lobes in the human brain. The optic nerve carries the visual impulse from the eye to the occipital lobe of the brain.
So, the correct answer is 'Occipital lobe'
Question 4
1 / -0

Parts A, B, C and D of the human eye are shown in the diagram. Select the option which gives correct identification along with its functions/characteristics.

A
A - Retina - contains photo receptors - rods and cones

B
B - Blind spot - has only a few rods and cones

C
C - Aqueous chamber - reflects the light which does not pass through the lens

D
All of the above.

Solution

All the options give correct identification of the parts of the eyeball and their respective functions.
The last label D, Choroid is actually a vascular layer of the eye, containing connective tissues and lying between the retina and the sclera. It provides oxygen and nourishment to the retina.Along with ciliary body and iris, it forms the uveal tract.It becomes continuous anteriorly with ciliary body.
Question 5
1 / -0

Which area of cerebral cortex is responsible for the interpretation of speech?

A
Broca's area

B
Wernicke's area

C
Premotor area

D
Association area of sensory cortex.

Solution

Broca’s area in frontal lobe of dominant hemisphere is involved in language production .
Promotors cortex ,also in frontal lobe , projects directly to spinal cord and therefore plays role in direct behavior with a direct emphasis on trunk muscles of the body.
Association area of sensory cortex is essential for mental functions that are more complex.
Wernicke’s area ,located in temporal lobe of dominant hemisphere is responsible for development and comprehension of speech.
Question 6
1 / -0

Photosensitive compound in human eye is made up of

A
Opsin and Retinal

B
Opsin and Retinol

C
Transducin and Retinene

D
Guanosine and Retinol.

Solution

The photosensitive compound present in vision is called rhodopsin, also known as visual purple which consists of a large protein called opsin and retinal. Opsins are a group of light-sensitive proteins found in photoreceptor cells of the retina. Five classical groups of opsins are involved in vision, mediating the conversion of a photon of light into an electrochemical signal, the first step in the visual transduction cascade. Retinal allows certain microorganisms to convert light into metabolic energy. So, the correct answer is option A.
Question 7
1 / -0

Where is the image of an object formed in human eye?

A
Iris

B
Pupil

C
Retina

D
Cornea
Solution
- The retina is the innermost, light-sensitive layer of tissue of the eye of most vertebrates and some molluscs.
- The optics of the eye create a focused two-dimensional image of the visual world on the retina, which translates that image into electrical neural impulses to the brain to create the visual perception.
- The retina serving a function analogous to that of the film or image sensor in a camera. Hence, the retina is the image of an object formed in the human eye.
So, the correct answer is 'retina'.
Question 8
1 / -0

Which one of the following pairs is incorrect?

A
A- Dendrite

B
B- Nucleus

C
C- Cell body

D
D- Myelin sheath
Solution
Correct Option: C
Explanation
A- Dendrites are short filaments that protrude from the cell body.
B- Nucleus is a component of the cell body found in the cytoplasm of nerve cells.
C- Axon terminals are the distal end of the axon that is split into branches, each of which terminates with a bulb-like structure known as the synaptic knobs.
D- Myelin sheath is a coating comprised of lipids and proteins that wrap around the axon.
Hence, the incorrect statement is C-Dendrite.
Question 9
1 / -0

Which one of the following parts of a neuron is covered by fatty sheath?

A
Axon

B
Cyton

C
Dendrite

D
Node of Ranvier
Solution
Neurons are the structural and functional units of the nervous system. A neuron is composed of three major parts:
Cell body
Dendrite
Axon
Axon is also known as the nerve fibre. It is a long fibre which arises from the cell body. One end of axon is attached to the cell body and other end is away from the cell body. Axons transmits the nerve impulses away from the cell body to a synapse or to a neuromuscular junction. Axon is covered by fatty sheath called myelin sheath. It acts as a biological electrical insulation.
Hence, the correct option is A.
Question 10
1 / -0

The path of passage of stimulus when you accidentally touch a hotplate is?

A
receptor $$\rightarrow$$ brain $$\rightarrow$$ muscles

B
muscles $$\rightarrow$$ spinal cord $$\rightarrow$$ receptor

C
muscles $$\rightarrow$$ brain $$\rightarrow$$ receptor

D
receptor $$\rightarrow$$ spinal cord $$\rightarrow$$ muscles

Solution

If you accidentally touch a hot pot on your stove while cooking, you would involuntarily (and nearly instantaneously) snatch your hand away from the pot. This response is called a ‘reflex action'.
At the point of contact with the hot pot, skin receptors detect a stimulus and they quickly send nerve impulses to relay neurons in the spinal cord via sensory neurons. Relay neurons transmit this impulse to the motor neuron. then motor neurons send that impulse to the effector in muscles cause muscle contraction to move the hand away.
So, the correct option is D.

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Re-Attempt Weekly Quiz Competition

Neural Control and Coordination Test - 52

Result

Neural Control and Coordination Test - 52

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Question 1

Comprehension of spoken words

Comprehension of written words

Cognitive skills

All of the above

Solution

Question 2

Temporal lobe

Parietal lobe

Frontal lobe

All of the above

Solution

Question 3

Temporal lobe

Occipital lobe

Frontal lobe

Parietal lobe

Solution

Question 4

A - Retina - contains photo receptors - rods and cones

B - Blind spot - has only a few rods and cones

C - Aqueous chamber - reflects the light which does not pass through the lens

All of the above.

Solution

Question 5

Broca's area

Wernicke's area

Premotor area

Association area of sensory cortex.

Solution

Question 6

Opsin and Retinal

Opsin and Retinol

Transducin and Retinene

Guanosine and Retinol.

Solution

Question 7

Iris

Pupil

Retina

Cornea

Solution

Question 8

A- Dendrite

B- Nucleus

C- Cell body

D- Myelin sheath

Solution

Question 9

Axon

Cyton

Dendrite

Node of Ranvier

Solution

Question 10

receptor $$\rightarrow$$ brain $$\rightarrow$$ muscles

muscles $$\rightarrow$$ spinal cord $$\rightarrow$$ receptor

muscles $$\rightarrow$$ brain $$\rightarrow$$ receptor

receptor $$\rightarrow$$ spinal cord $$\rightarrow$$ muscles

Solution

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