Human Nervous System

Sympathetic nervous system induces [AIPMT 1997]

Secretion of digestive juices
secretion of saliva
Heart beat
All of the above

Vagus nerve is [AIPMT 1997,92]

V
VII
IX
X

In human, Visceral organs are innervated by [AIPMT 1996]

Sympathetic nerves and are under conscious control
parasympathetic nerves and are under conscious control
both sympathetic and parasympathetic nerves and are under conscious control
both sympathetic and parasympathetic nerves but are not under conscious control

The sympathetic nerves, in mammals arise from [AIPMT 1995]

sacral nerves
cervical nerves
thoraco lumbar nerves
II, VII, IX & X cranial nerves

CNS is mostly made up of [AIPMT 1993]

Motor neurons and sensory neurons
sensory neurons and association neurons
association neurons
motor neurons and association neurons

Afferent nerve fibres carry impulses from [AIPMT 1992]

effector organs to CNS
Receptors to CNS
CNS to receptor
CNS to muscles

One function of Parasympathetic nervous system is [AIPMT 1990]

contraction of hair muscle
Stimulation of sweat gland
acceleration of heart beat
Constriction of pupil

Which of the following cranial nerves can regulate heartbeat?

VII
VIII
IX
X

How do Parasympathetic neural signals affect the working of the heart? [AIPMT 2014]

Reduce both heart rate and cardiac output
Heart rate is increased without affecting the cardiac output
Both heart rate and cardiac output increase
Heart rate decreases but cardiac output increases

Which one of the following statements is correect? [AIPMT 2006]

Neurons regulate endocrine activity but not vice versa
Endocrine glands regulate neural activity and nervous system regulates endocrine glands
Neither hormones control neural activity nor the neurons control endocrine activity
Endocrine glands regulate neural activity but not vice versa

In a man, abducens nerve is injured. Which one of the following functions will be affected? [AIPMT 2005]

Movement of the eye ball
swallowing
movement of the tongue
movement of the neck

Select the incorrect statement regarding synapses [NEET 2022]

Electrical current can flow directly from one neuron into the other across the electrical synapse.
Chemical synapses use nerotransmitter
Impulse transmission across a chemical synapse is always faster than that across an electrical synapse.
The membranes of pre – synaptic and post – synaptic neurons are in close proximity in an electrical synapse.

Which of the following is associated with decrease in cardiac output? [NEET 2020]

Sympathetic nerves
parasympathetic neural signal
Pneumotaxic centre
Adrenal medullary hormone

Alzhemier’s disease in humans is associated with the deficiency of [NEET 2019]

glutamic acid
acetylcholine
gamma aminobutyric acid (GABA)
dopamine

Injury to vagus nerve in human is not likely to affect [AIPMT 2004]

tongue movement
gastrointestinal movement
pancreatic secretions
cardiac movement

Which cranial nerves has the highest number of branches? [AIPMT 1999]

Facial nerves
Trigeminal
Vagus nerves
None of the above

Human Nervous System

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