-
Regulation of Internal Environment I6 Topics1 Quiz
-
Regulation of Internal Environment II4 Topics1 Quiz
-
Regulation of Internal Environment III | Week 2 (Contd)3 Topics1 Quiz
-
Nervous Coordination I2 Topics1 Quiz
-
Nervous Coordination II4 Topics1 Quiz
-
Sense Organs I6 Topics1 Quiz
-
Sense Organs II3 Topics1 Quiz
-
Ecology of Population3 Topics1 Quiz
-
Balance in Nature3 Topics1 Quiz
-
Reproductive Systems and Reproduction in Man I4 Topics1 Quiz
-
Reproductive Systems and Reproduction in Man II3 Topics1 Quiz
-
Development of New Seeds4 Topics1 Quiz
-
Fruits3 Topics1 Quiz
Topic Content:
- Peripheral Nervous System (PNS)
- The Somatic Nervous System (SNS)
- The Autonomic Nervous System (ANS)
The peripheral nervous system includes all nerves outside the brain and spinal cord. It consists of nerves, ganglia, and sensory receptors that connect the CNS to the rest of the body. It enables us to sense and respond to the environment, move our muscles, and maintain essential bodily functions.
The ganglia is a cluster of nervous cell bodies containing thousands of neurons.
It has two parts:
(i) The Somatic Nervous System (SNS)
(ii) The Autonomic Nervous System (ANS)
The Somatic Nervous System:
The somatic nervous system spreads outward from the brain and spinal cord.
It consists of:
(i) 12 pairs of cranial nerves in the head (connecting the brain to the head and neck region)
(ii) 31 pairs of spinal nerves in the trunk (connecting the spinal cord to the thorax, abdomen and limbs)
Out of the 12 pairs of cranial nerves, the
Full lesson notes for the term are available to subscribers only.
You are viewing an excerpt of this Topic. Subscribe Now to get Full Access to ALL this Subject’s Topics and Quizzes for this Term!
Click on the button “Subscribe Now” below for Full Access!
Subscribe Now
Note: If you have Already Subscribed and you are seeing this message, it means you are logged out. Please Log In using the Login Form Below to Carry on Studying!
- ⚡ Instant grading & results
- 📈 Student progress tracking
- 📝 End-of-term examinations
- 📄 Official student report cards
- 🚫 Ad-free learning experience
- 📱 Mobile & desktop friendly
