284764
Which of the following cranial nerves can regulate heart beat?
1 \(\mathrm{X}\)
2 IX
3 VIII
4 VII
Explanation:
A \(10^{\text {th }}\) Cranial nerve or the vagus nerve regulate heart rate through its parasympathetic division. This nerve helps lower heart rate by releasing acetylcholine, which slows down the electrical signals in the heart, leading to decrease in heart rate.
AIPMT-1989
Neural Control and Coordination
284765
The sympathetic nerves in mammals arise from
C The thoracolumbar nerves refer to the spinal nerves that emerge from the thoracic and lumbar region of the spinal cord. These nerves transmits sensory and motor signals between the spinal cord and various parts of the body including the muscles and skin of the abdomen, back and lower extremities
AIPMT-1995
Neural Control and Coordination
284766
Hypoglossal nerve controls the movements of:
1 Ear
2 Heart
3 Tongue
4 Limbs
Explanation:
C The hypoglossal nerve is the \(12^{\text {th }}\) cranial nerve. It is a motor nerve that controls the muscles of the tongue. If originates from the medulla oblongata in the brainstem and travels down the neck to the tongue. The hypoglossal nerve is responsible for movements such as swallowing, talking and chewing.
J and K CET-2000
Neural Control and Coordination
284768
Parkinson's disease is associated with:
1 Midbrain
2 Thalamus
3 Hypothalamus
4 Cerebrum
Explanation:
A Parkinson's disease is associated with the midbrain specially the substantia nigra. The substantia nigra is a part of the basal ganglia, which is a group of structures in the brain that control movement. In parkinson's disease there is a loss of dopamineproducing neurons in the substantia nigra. This leads to the symptoms of parkinson's disease such as tremor, rigidity, and slowness of movement.
JCECE-2002
Neural Control and Coordination
284771
Study the following statement and pick up the incorrect one:
1 Typical value of resting membrane potential in \(-70 \mathrm{mV}\) in a neuron
2 During resting phases, the activation gates of sodium channels are closed
3 If the voltage falls below the \(-70 \mathrm{mV}\) level of the resting state, it is called under shoot
4 Speed of conduction of nerve impulse inversely proportional to the diameter of the nerve fibre
Explanation:
D The speed of nerves conduction does not depend on the diameter of axon only, rather it depends on the diameter of the nerved fibre. The speed of nerves conduction depend upon axon size and degree of myelination. Nerve conduction in myelinated axons is referred to as saltatory conduction.
284764
Which of the following cranial nerves can regulate heart beat?
1 \(\mathrm{X}\)
2 IX
3 VIII
4 VII
Explanation:
A \(10^{\text {th }}\) Cranial nerve or the vagus nerve regulate heart rate through its parasympathetic division. This nerve helps lower heart rate by releasing acetylcholine, which slows down the electrical signals in the heart, leading to decrease in heart rate.
AIPMT-1989
Neural Control and Coordination
284765
The sympathetic nerves in mammals arise from
C The thoracolumbar nerves refer to the spinal nerves that emerge from the thoracic and lumbar region of the spinal cord. These nerves transmits sensory and motor signals between the spinal cord and various parts of the body including the muscles and skin of the abdomen, back and lower extremities
AIPMT-1995
Neural Control and Coordination
284766
Hypoglossal nerve controls the movements of:
1 Ear
2 Heart
3 Tongue
4 Limbs
Explanation:
C The hypoglossal nerve is the \(12^{\text {th }}\) cranial nerve. It is a motor nerve that controls the muscles of the tongue. If originates from the medulla oblongata in the brainstem and travels down the neck to the tongue. The hypoglossal nerve is responsible for movements such as swallowing, talking and chewing.
J and K CET-2000
Neural Control and Coordination
284768
Parkinson's disease is associated with:
1 Midbrain
2 Thalamus
3 Hypothalamus
4 Cerebrum
Explanation:
A Parkinson's disease is associated with the midbrain specially the substantia nigra. The substantia nigra is a part of the basal ganglia, which is a group of structures in the brain that control movement. In parkinson's disease there is a loss of dopamineproducing neurons in the substantia nigra. This leads to the symptoms of parkinson's disease such as tremor, rigidity, and slowness of movement.
JCECE-2002
Neural Control and Coordination
284771
Study the following statement and pick up the incorrect one:
1 Typical value of resting membrane potential in \(-70 \mathrm{mV}\) in a neuron
2 During resting phases, the activation gates of sodium channels are closed
3 If the voltage falls below the \(-70 \mathrm{mV}\) level of the resting state, it is called under shoot
4 Speed of conduction of nerve impulse inversely proportional to the diameter of the nerve fibre
Explanation:
D The speed of nerves conduction does not depend on the diameter of axon only, rather it depends on the diameter of the nerved fibre. The speed of nerves conduction depend upon axon size and degree of myelination. Nerve conduction in myelinated axons is referred to as saltatory conduction.
284764
Which of the following cranial nerves can regulate heart beat?
1 \(\mathrm{X}\)
2 IX
3 VIII
4 VII
Explanation:
A \(10^{\text {th }}\) Cranial nerve or the vagus nerve regulate heart rate through its parasympathetic division. This nerve helps lower heart rate by releasing acetylcholine, which slows down the electrical signals in the heart, leading to decrease in heart rate.
AIPMT-1989
Neural Control and Coordination
284765
The sympathetic nerves in mammals arise from
C The thoracolumbar nerves refer to the spinal nerves that emerge from the thoracic and lumbar region of the spinal cord. These nerves transmits sensory and motor signals between the spinal cord and various parts of the body including the muscles and skin of the abdomen, back and lower extremities
AIPMT-1995
Neural Control and Coordination
284766
Hypoglossal nerve controls the movements of:
1 Ear
2 Heart
3 Tongue
4 Limbs
Explanation:
C The hypoglossal nerve is the \(12^{\text {th }}\) cranial nerve. It is a motor nerve that controls the muscles of the tongue. If originates from the medulla oblongata in the brainstem and travels down the neck to the tongue. The hypoglossal nerve is responsible for movements such as swallowing, talking and chewing.
J and K CET-2000
Neural Control and Coordination
284768
Parkinson's disease is associated with:
1 Midbrain
2 Thalamus
3 Hypothalamus
4 Cerebrum
Explanation:
A Parkinson's disease is associated with the midbrain specially the substantia nigra. The substantia nigra is a part of the basal ganglia, which is a group of structures in the brain that control movement. In parkinson's disease there is a loss of dopamineproducing neurons in the substantia nigra. This leads to the symptoms of parkinson's disease such as tremor, rigidity, and slowness of movement.
JCECE-2002
Neural Control and Coordination
284771
Study the following statement and pick up the incorrect one:
1 Typical value of resting membrane potential in \(-70 \mathrm{mV}\) in a neuron
2 During resting phases, the activation gates of sodium channels are closed
3 If the voltage falls below the \(-70 \mathrm{mV}\) level of the resting state, it is called under shoot
4 Speed of conduction of nerve impulse inversely proportional to the diameter of the nerve fibre
Explanation:
D The speed of nerves conduction does not depend on the diameter of axon only, rather it depends on the diameter of the nerved fibre. The speed of nerves conduction depend upon axon size and degree of myelination. Nerve conduction in myelinated axons is referred to as saltatory conduction.
NEET Test Series from KOTA - 10 Papers In MS WORD
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Neural Control and Coordination
284764
Which of the following cranial nerves can regulate heart beat?
1 \(\mathrm{X}\)
2 IX
3 VIII
4 VII
Explanation:
A \(10^{\text {th }}\) Cranial nerve or the vagus nerve regulate heart rate through its parasympathetic division. This nerve helps lower heart rate by releasing acetylcholine, which slows down the electrical signals in the heart, leading to decrease in heart rate.
AIPMT-1989
Neural Control and Coordination
284765
The sympathetic nerves in mammals arise from
C The thoracolumbar nerves refer to the spinal nerves that emerge from the thoracic and lumbar region of the spinal cord. These nerves transmits sensory and motor signals between the spinal cord and various parts of the body including the muscles and skin of the abdomen, back and lower extremities
AIPMT-1995
Neural Control and Coordination
284766
Hypoglossal nerve controls the movements of:
1 Ear
2 Heart
3 Tongue
4 Limbs
Explanation:
C The hypoglossal nerve is the \(12^{\text {th }}\) cranial nerve. It is a motor nerve that controls the muscles of the tongue. If originates from the medulla oblongata in the brainstem and travels down the neck to the tongue. The hypoglossal nerve is responsible for movements such as swallowing, talking and chewing.
J and K CET-2000
Neural Control and Coordination
284768
Parkinson's disease is associated with:
1 Midbrain
2 Thalamus
3 Hypothalamus
4 Cerebrum
Explanation:
A Parkinson's disease is associated with the midbrain specially the substantia nigra. The substantia nigra is a part of the basal ganglia, which is a group of structures in the brain that control movement. In parkinson's disease there is a loss of dopamineproducing neurons in the substantia nigra. This leads to the symptoms of parkinson's disease such as tremor, rigidity, and slowness of movement.
JCECE-2002
Neural Control and Coordination
284771
Study the following statement and pick up the incorrect one:
1 Typical value of resting membrane potential in \(-70 \mathrm{mV}\) in a neuron
2 During resting phases, the activation gates of sodium channels are closed
3 If the voltage falls below the \(-70 \mathrm{mV}\) level of the resting state, it is called under shoot
4 Speed of conduction of nerve impulse inversely proportional to the diameter of the nerve fibre
Explanation:
D The speed of nerves conduction does not depend on the diameter of axon only, rather it depends on the diameter of the nerved fibre. The speed of nerves conduction depend upon axon size and degree of myelination. Nerve conduction in myelinated axons is referred to as saltatory conduction.
284764
Which of the following cranial nerves can regulate heart beat?
1 \(\mathrm{X}\)
2 IX
3 VIII
4 VII
Explanation:
A \(10^{\text {th }}\) Cranial nerve or the vagus nerve regulate heart rate through its parasympathetic division. This nerve helps lower heart rate by releasing acetylcholine, which slows down the electrical signals in the heart, leading to decrease in heart rate.
AIPMT-1989
Neural Control and Coordination
284765
The sympathetic nerves in mammals arise from
C The thoracolumbar nerves refer to the spinal nerves that emerge from the thoracic and lumbar region of the spinal cord. These nerves transmits sensory and motor signals between the spinal cord and various parts of the body including the muscles and skin of the abdomen, back and lower extremities
AIPMT-1995
Neural Control and Coordination
284766
Hypoglossal nerve controls the movements of:
1 Ear
2 Heart
3 Tongue
4 Limbs
Explanation:
C The hypoglossal nerve is the \(12^{\text {th }}\) cranial nerve. It is a motor nerve that controls the muscles of the tongue. If originates from the medulla oblongata in the brainstem and travels down the neck to the tongue. The hypoglossal nerve is responsible for movements such as swallowing, talking and chewing.
J and K CET-2000
Neural Control and Coordination
284768
Parkinson's disease is associated with:
1 Midbrain
2 Thalamus
3 Hypothalamus
4 Cerebrum
Explanation:
A Parkinson's disease is associated with the midbrain specially the substantia nigra. The substantia nigra is a part of the basal ganglia, which is a group of structures in the brain that control movement. In parkinson's disease there is a loss of dopamineproducing neurons in the substantia nigra. This leads to the symptoms of parkinson's disease such as tremor, rigidity, and slowness of movement.
JCECE-2002
Neural Control and Coordination
284771
Study the following statement and pick up the incorrect one:
1 Typical value of resting membrane potential in \(-70 \mathrm{mV}\) in a neuron
2 During resting phases, the activation gates of sodium channels are closed
3 If the voltage falls below the \(-70 \mathrm{mV}\) level of the resting state, it is called under shoot
4 Speed of conduction of nerve impulse inversely proportional to the diameter of the nerve fibre
Explanation:
D The speed of nerves conduction does not depend on the diameter of axon only, rather it depends on the diameter of the nerved fibre. The speed of nerves conduction depend upon axon size and degree of myelination. Nerve conduction in myelinated axons is referred to as saltatory conduction.