Neural Control and Coordination Test

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Neural Control and Coordination Test - 39

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Question 1
1 / -0

Schneiderian and tympanic membranes respectively belongs to

A
Ear and Nose

B
Ear and Eye

C
Ear and Ear

D
Nose and Ear

Solution

The tympanic membrane is the membrane which separates the middle ear from the external ear. It receives the sound waves from the external sources which are further amplified by middle ear and converted to the auditory impulse by the inner ear which is carried to the brain by auditory nerves for interpretation.
Schneiderian membrane lines the upper part of the nasal cavity. It detects various chemicals present in the air and sends the signal to the brain for different chemicals.
So, the correct answer is option D.
Question 2
1 / -0

The corpus callosum interconnects

A
Cerebral hemispheres

B
Cerebellar hemispheres

C
Corpora quadrigemina

D
Crura Cerebri
Solution
- Corpus callosum is also called as callosal commissure. It is a thick band of fibers presents between the two hemispheres.
- It is present below the cortex. It helps in the interaction between two parts of the brain, which is the left and right hemispheres.
- It transmits signals across the hemispheres. It is the largest fiber pathway found in the brain.
Thus, the correct answer is option A.
Question 3
1 / -0

Caring, diagnosis and cure of eye diseases

A
Orthopaedics

B
Ophthalmology

C
Pathology

D
Andrology
Solution
- The word ''Opthalmology'' comes from the Greek roots ''Ophthalmol'' means ''Eye'' and ''Logos'' means ''Study''. Hence Ophthalmology literally means the ''The science of eyes''.
- An Ophthalmologist is a specialist in medical and surgical eye problems.
- Hence Ophthalmology is the study of Caring, diagnosis and cure of eye diseases.
- So, the correct answer is 'Ophthalmology'.
Question 4
1 / -0

The cell that transfers information about pain to the brain is ....................

A
Neuron

B
Blastocyst

C
Histoblast

D
Haemocyte

Solution

Neurons are the cells present in the nervous system. Nerve impulses begin at the sensory receptor and are carried to the CNS through the sensory neuron. The nerve impulse is transmitted through the axon of one neuron to the dendrite of the other neuron. Telodendrons present at the opposite axonic end release neurotransmitters that reach the dendrite of the other neuron through the gaps called synapse. Hence the neurons transmit information about pain to the brain. Thus the correct answer is option A.
Question 5
1 / -0

Temporal lobe of cerebrum is concerned with the detection of following sensations except

A
Hearing

B
Pressure

C
Smell

D
Taste

Solution

Cerebrum is divided into two hemisphere. Each cerebral hemisphere contains four lobes namely frontal, parietal, temporal, and occipital lobe. Frontal lobe deals with reasoning and judgment. It is also involved in the control of various voluntary muscle movements such as swallowing and speech. Parietal lobe is associated with sensation (touch and pressure). Temporal lobe is associated with auditory (speech), gustatory (taste) and olfactory (smell) function. Occipital lobe is involved in vision.
Thus, the correct answer is option B.
Question 6
1 / -0

Units of nervous system are ______________.

A
Cytons

B
Axons

C
Neurons

D
Dendrites

Solution

The unit of the nervous system is neurons. These are the specialized cells that are responsible for transmitting information to other neurons, muscles, or glands.
Cyton is a part of the neuron containing the nucleus and cytoplasm. Axon is a long and slender projection of neuron. Dendron is the branched extension of a nerve cell. Hence the correct answer is C.
Question 7
1 / -0

Direction of nerve impulse is reversed in nerve with.

A
Axo-axonic

B
Axo-dendritic

C
Both A and B

D
None of the above

Solution

Answer is option A i.e. "Axo-axonic"
Axo-axonic is a type of neural structure synapse between two axons. In case case, the axon of one neuron makes synapse with axon of the other neuron (i.e both, site of neurotransmitter release and site of receptor binding, are axons). It is essential for the transmission of nerve impulses. Axoaxonic junction modulate neuronal transmission by either inhibiting or facilitating depolarization at the presynaptic membrane.
Question 8
1 / -0

Nodes of Ranvier occur in ____________.

A
Cell body

B
Right atrium

C
Right ventricle

D
Myelinated nerve fibres

Solution

The correct option is D.
Nodes of ranvier only occur in nerve fibres consisting of myelin sheath. The myelinated nerve fibres have myelin sheath and therefore nodes of ranvier occur in the same.
Question 9
1 / -0

Nissl granules occur in _____________.

A
Bone cells

B
Mast cells

C
Nerve cells

D
Chondrocytes

Solution

The correct option is C.
A Nissl body, also known as Nissl substance and Nissl material, is a large granular body found in neurons. These granules are of rough endoplasmic reticulum (RER) with rosettes of free ribosomes, and are the site of protein synthesis.
Question 10
1 / -0

Non-myelinated nerve fibres occur in _____________.

A
Cranial nerves

B
Autonomic nerves

C
Optic nerves

D
Spinal nerves
Solution
- Non-myelinated nerve are the nerve cell in autonomic nervous system in which there is no myelin sheath surrounding its axon.
- Myelin is a lipid-rich (fatty) substance formed in the central nervous system (CNS) by glial cells called oligodendrocytes, and in the peripheral nervous system (PNS) by Schwann cells.
- Myelin insulates nerve cell axons to increase the speed at which information (encoded as an electrical signal) travels from one nerve cell body to another (as in the CNS) . Hence, Non-myelinated nerve fibres occur in autonomic nerves.
So, the correct answer is 'autonomic nerves'.

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Neural Control and Coordination Test - 39

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Neural Control and Coordination Test - 39

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Question 1

Ear and Nose

Ear and Eye

Ear and Ear

Nose and Ear

Solution

Question 2

Cerebral hemispheres

Cerebellar hemispheres

Corpora quadrigemina

Crura Cerebri

Solution

Question 3

Orthopaedics

Ophthalmology

Pathology

Andrology

Solution

Question 4

Neuron

Blastocyst

Histoblast

Haemocyte

Solution

Question 5

Hearing

Pressure

Smell

Taste

Solution

Question 6

Cytons

Axons

Neurons

Dendrites

Solution

Question 7

Axo-axonic

Axo-dendritic

Both A and B

None of the above

Solution

Question 8

Cell body

Right atrium

Right ventricle

Myelinated nerve fibres

Solution

Question 9

Bone cells

Mast cells

Nerve cells

Chondrocytes

Solution

Question 10

Cranial nerves

Autonomic nerves

Optic nerves

Spinal nerves

Solution

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