Tag: pns

Questions Related to pns

Cranial nerves found in man and frog are respectively

  1. 12 and 10

  2. 10 and 12

  3. 10 and 13

  4. 11 and 12


Correct Option: A

Smallest cranial nerve in humans is

  1. Optic

  2. Olfactory

  3. Oculomotor

  4. Pathetic


Correct Option: A

II, VII, VIII and IX cranial nerves are

  1. Optic, facial, auditory, glossopharyngeal

  2. Optic, auditory, facial, hypoglossal

  3. Oculomotor, auditory, abducens, hypoglossal

  4. Optic, facial, abducens and gloss-opharyngeal


Correct Option: A

Meissners plexus and Auerbachs plexus of gastrointestinal tract occur respectively in

  1. Submucosa and mucosa

  2. Mucosa and muscularis externa

  3. Submucosa and muscularis externa

  4. Lamina propia and muscularis mucosa


Correct Option: C

Dorsal root of spinal nerve contains

  1. Sensory neurons only

  2. Relay and sensory neurons

  3. Sensory and motor neurons

  4. Motor and relay neurons


Correct Option: A

Cranial nerves IV, V and VII are respectively

  1. Trochlear, Trigeminal and Facial

  2. Auditory, Facial and Trochlear

  3. Auditory, Trochlear and Facial

  4. Trochlear, Trigeminal and Auditory


Correct Option: A

Para synthetic Nervous System.

  1. Increases heart beat

  2. Decreases heart beat

  3. Originates heart beat

  4. Has no effect upon heart beat


Correct Option: B
Explanation:
The parasympathetic nervous system (PNS) releases the hormone acetylcholine to slow the heart rate. At the beginning of exercise, your body removes theparasympathetic stimulation, which enables the heart rate to gradually increase.
So the, the correct option is 'Decreases heart beat'.

Which of the following is tenth cranial nerve ?

  1. Pneumogastric

  2. Glossopharyngeal

  3. Trochlear

  4. Trigeminal


Correct Option: A

3rd, 6th and 11th cranial nerves are

  1. Optic, facial and accessory spinal

  2. Oculomotor, trigeminal and accessory spinal

  3. Trigeminal, abducens and vagus

  4. Oculomotor, abducens and accessory spinal


Correct Option: D

Cranial nerve showing maximum branching is

  1. Trigeminal

  2. Vagus

  3. Optic

  4. Facial


Correct Option: B