Pns - class-XI

Description: Pns
Number of Questions: 15
Created by:
Tags: biology zoology nervous system of man neural control and coordination
Attempted 0/15 Correct 0 Score 0

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
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

Hypoglossal nerve controls the movements of

  1. Ear

  2. Heart

  3. Tongue

  4. Limbs

Correct Option: C

Vagus nerve is

  1. Sensory tenth cranial nerve

  2. Motor tenth cranial nerve

  3. Mixed tenth cranial nerve

  4. Mixed eleventh cranial nerve

Correct Option: C

The $3^{rd}, 6^{th} and 11^{th}$ cranial nerves are respectively

  1. oculomotor, abducens and accessory

  2. oculomotor, trigeminal and accessory

  3. optic, facial and accessory

  4. trochlear, abducens and vagus

Correct Option: A

In higher vertebrates (reptiles, birds, mammals) there are 12 pairs of cranial nerves- olfactory (I), optic (II), oculomotor (III), trochlear (IV), trigeminal (V), abducens (VI), facial (VII), vestibulocochlear (VIII), glossopharyngeal (IX), vagus (X), accessory (XI), and hypoglossal (XII).

The vagus nerve is the _______ cranial nerve.

  1. $7^{th}$

  2. $5^{th}$

  3. $10^{th}$

  4. $9^{th}$

Correct Option: C

The vagus nerve historically cited as the pneumogastric nerve, is the tenth cranial nerve or CN X, and interfaces with parasympathetic control of the heart, lungs, and digestive tract. The vagus nerves are paired but are normally referred to in the singular. It is the longest nerve of the autonomic nervous system in the human body.

So the correct option is '10th'.

Vagus nerve is

  1. 5th cranial nerve

  2. 6th cranial nerve

  3. 9th cranial nerve

  4. 10th cranial nerve

Correct Option: D
- Hide questions