CNS controls and processes information (brain & spinal cord), while PNS carries signals between CNS and the rest of the body.

Compare the following: (a) Central nervous system (CNS) and Peripheral nervous system (PNS) (b) Resting potential and Action potential

Question:

Compare the following:

(a) Central nervous system (CNS) and Peripheral nervous system (PNS) (b) Resting potential and Action potential

‍

Answer:

(a) Central nervous system (CNS) and Peripheral nervous system (PNS)

Feature	CNS	PNS
Components	Brain + Spinal cord	All other nerves outside CNS
Function	Processes and integrates information	Transmits signals between CNS and body
Control	Voluntary and involuntary	Mostly voluntary and reflex responses

‍

(b) Resting potential and Action potential

Feature	Resting Potential	Action Potential
Membrane charge	Negative inside (-70 mV)	Briefly positive inside (+40 mV)
When observed	Neuron at rest	When neuron fires
Ion movement	Na⁺ out, K⁺ in	Na⁺ enters, K⁺ leaves

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Distinguish between: (a) Afferent neurons and efferent neurons

Chapter 18 NCERT Class 11 Biology SOLUTIONS

Question:

Answer:

More NCERT Questions

Distinguish between: (a) Afferent neurons and efferent neurons

Answer the following: (a) Which part of the human brain is the most developed?

Differentiate between: (a) Myelinated and non-myelinated axons

Explain the role of Na⁺ in the generation of action potential

Give a brief account of Mechanism of synaptic transmission

Write short notes on the following: (a) Neural coordination (b) Forebrain (c) Midbrain (d) Hindbrain (e) Synapse

Draw labelled diagrams of the following: (a) Neuron (b) Brain

Briefly describe the structure of the brain?

Briefly describe the structure of the brain?

How do nervous systems differ in simple and complex animals?

What are the differences between voluntary and involuntary actions in the nervous system?

What is a reflex action, and how does it work?

What is the difference between the CNS and PNS?

How do animals respond to stimuli through the nervous system?

What are the types of neurons in the nervous system?

How do neurons work in the nervous system?

What is the function of the nervous system in animals?

What are the main components of the nervous system?

What is the nervous system in animals?

Related Topics

Chapter 18 NCERT Class 11 Biology SOLUTIONS

Question:

Answer:

More NCERT Questions

Distinguish between: (a) Afferent neurons and efferent neurons

Answer the following: (a) Which part of the human brain is the most developed?

Differentiate between: (a) Myelinated and non-myelinated axons

Explain the role of Na⁺ in the generation of action potential

Give a brief account of Mechanism of synaptic transmission

Write short notes on the following: (a) Neural coordination (b) Forebrain (c) Midbrain (d) Hindbrain (e) Synapse

Draw labelled diagrams of the following: (a) Neuron (b) Brain

Briefly describe the structure of the brain?

Briefly describe the structure of the brain?

How do nervous systems differ in simple and complex animals?

What are the differences between voluntary and involuntary actions in the nervous system?

What is a reflex action, and how does it work?

What is the difference between the CNS and PNS?

How do animals respond to stimuli through the nervous system?

What are the types of neurons in the nervous system?

How do neurons work in the nervous system?

What is the function of the nervous system in animals?

What are the main components of the nervous system?

What is the nervous system in animals?

Related Topics

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