Which of the following statements are correct?
$(i)$ $Ramus$ $dorsalis$ branch of spinal nerve contains sensory as well as motor nerve fibres.
(ii) The preganglionic nerve fibres arise from the entire spinal cord.
(iii) There are $31$ pairs of spinal nerves.
(iv) The somatic nervous system transmits impulses from $CNS$ to visceral organs.
$(v)$ Reflex action is a sudden,thoughtful,and voluntary response to the applied stimulus.
Select the correct option.
$(i)$ $Ramus$ $dorsalis$ branch of spinal nerve contains sensory as well as motor nerve fibres.
(ii) The preganglionic nerve fibres arise from the entire spinal cord.
(iii) There are $31$ pairs of spinal nerves.
(iv) The somatic nervous system transmits impulses from $CNS$ to visceral organs.
$(v)$ Reflex action is a sudden,thoughtful,and voluntary response to the applied stimulus.
Select the correct option.
- A$(i)$ and (ii) only
- B(ii) and (iv) only
- C$(i)$ and (iii) only
- D(iii) and $(v)$ only
Explore More
Similar Questions
Melanin and Lewy bodies occur in the neurons in case of
Medium
View SolutionExplain the following:
$(a)$ Role of $Na ^{+}$ in the generation of action potential
$(b)$ Mechanism of generation of light-induced impulse in the retina.
$(c)$ Mechanism through which a sound produces a nerve impulse in the inner ear.
$(a)$ Role of $Na ^{+}$ in the generation of action potential
$(b)$ Mechanism of generation of light-induced impulse in the retina.
$(c)$ Mechanism through which a sound produces a nerve impulse in the inner ear.
Difficult
View SolutionIf the $III^{rd}$ cranial nerve (oculomotor nerve) is damaged,it will lead to:
MediumAIPMT 1990
View SolutionComplete the statement by selecting the appropriate match among the following.
Column-$I$ Column-$II$ $(a)$ Resting potential $(i)$ Chemicals involved in the transmission of impulses at synapses. $(b)$ Nerve impulse $(ii)$ Gap between the presynaptic and postsynaptic neurons. $(c)$ Synaptic cleft $(iii)$ Electrical potential difference across the resting neural membrane. $(d)$ Neurotransmitters $(iv)$ An electrical wave-like response of a neuron to a stimulation.
| Column-$I$ | Column-$II$ |
|---|---|
| $(a)$ Resting potential | $(i)$ Chemicals involved in the transmission of impulses at synapses. |
| $(b)$ Nerve impulse | $(ii)$ Gap between the presynaptic and postsynaptic neurons. |
| $(c)$ Synaptic cleft | $(iii)$ Electrical potential difference across the resting neural membrane. |
| $(d)$ Neurotransmitters | $(iv)$ An electrical wave-like response of a neuron to a stimulation. |
Easy
View SolutionGiven below is a table comparing the effects of sympathetic and parasympathetic nervous system for four features. Which one feature is correctly described?
MediumAIIMS 2006
View SolutionVedclass Products
For Students
Vedclass Test Series
Mock tests in real JEE/NEET style with performance analysis. 5-day free trial.
Start Free TrialFor Teachers
Exam Paper Generator
Generate Set A/B/C/D exam papers from 7.5L+ questions in 2 minutes. 3 chapters free.
Try FreeFor Institutes
Online Exam Module
Live online exams with unlimited students, 360° analytics & white-label branding.
See Demo