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Neural Control and Coordination Class 11 Notes

Neural Control and Coordination Class 11 Notes

Class 11 Biology Chapter 21 Neural Control and Coordination Notes - PDF Download

Neural Control and Coordination Class 11 Notes are cumulated by our panel of highly experienced teachers to provide the students with effective exam preparation. The pdf includes the summary of the chapter, important points to remember and detailed explanation of important concepts and derivations for better understanding and retaining of the chapter. Going through these Neural Control and Coordination Class 11 Notes would easily help students to grasp challenging concepts which would ultimately lead them to score maximum marks in their exams.

Understanding Neural Control and Coordination.

Nervous system is divided into three parts:

(i) Central nervous system (CNS):

(a) In all the vertebrates including man, CNS is dorsal, hollow and non-ganglionated while in invertebrates when present, it is ventral, solid and ganglionated.

(b) CNS is formed of two parts:

Brain – Upper and broader part lying in the head; and

Spinal cord – Lower, long and narrow part running from beginning of neck to trunk.

(ii) Peripheral nervous system (PNS):

(a) It is formed of long, thin, whitish threads called nerves which extend between CNS and body parts (muscles, glands and sense organs).

(b) It controls the voluntary functions of the body.

(c) It has cranial and spinal nerves.

(iii) Autonomic nervous system (ANS):

(a) It is formed of nerve fibres extending upto visceral organs and controls the involuntary functions of visceral organs of body like heartbeat, peristalsis etc.

(b) It is again formed of two systems: sympathetic and para-sympathetic nervous system which has opposing functions.

Learn more about it in Neural Control and Coordination Class 11 Notes pdf.

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