Tag: pns

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Questions Related to pns

Multiple choice zoology nervous system of man pns divisions of nervous system peripheral nervous system

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
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Cranial nerve II is the Optic nerve, VII is the Facial nerve, VIII is the Vestibulocochlear (auditory) nerve, and IX is the Glossopharyngeal nerve.

Multiple choice zoology nervous system of man pns divisions of nervous system peripheral nervous system

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
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Meissner's plexus (submucosal plexus) is located in the submucosa layer of the gastrointestinal tract, while Auerbach's plexus (myenteric plexus) is located between the circular and longitudinal muscle layers of the muscularis externa.

Multiple choice zoology nervous system of man pns divisions of nervous system peripheral nervous system

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
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The dorsal root of a spinal nerve contains the axons of sensory neurons, whose cell bodies are located in the dorsal root ganglion. The ventral root contains motor neurons.

Multiple choice zoology nervous system of man pns divisions of nervous system peripheral nervous system

Para synthetic Nervous System.

  1. Increases heart beat

  2. Decreases heart beat

  3. Originates heart beat

  4. Has no effect upon heart beat
Reveal answer Fill a bubble to check yourself
B Correct answer
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'.
Multiple choice zoology nervous system of man pns divisions of nervous system peripheral nervous system

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
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The 3rd cranial nerve is the Oculomotor nerve, the 6th is the Abducens nerve, and the 11th is the Accessory (spinal accessory) nerve.