Human Nervous System
The human nervous system is divided into two parts :
- The Central Neural System (CNS): Site of information processing and control. It includes:
- Brain
- Spinal cord
- The Peripheral Neural System (PNS): Consists of all the nerves associated with CNS. The nerve fibers of PNS are of two types
- Afferent fibers (transmit impulses from tissues/organs to the CNS)
- Efferent fibers (transmit regulatory impulses from the CNS to the concerned peripheral tissues/organs)
The PNS is divided into:
- Somatic Nervous System relays (transmits impulses from the CNS to skeletal muscles)
- Autonomic Nervous System(transmits impulses from the CNS to the involuntary organs and smooth muscles) It is further divided into the sympathetic neural system and parasympathetic neural system.
Visceral Nervous System
Part of PNS consists of a whole complex of nerves, fibers, ganglia, and plexuses by which impulses travel from the CNS to the viscera and from the viscera to the CNS.
Class 11 Biology NCERT Notes Chapter 18 – Neural Control and Coordination
NCERT Notes for Class 11 Biology Chapter 18 – Neural Control and Coordination: The neural system controls and coordinates various functions, and homeostatic and metabolic activities of all the organs in the body. Neurons are the functional unit of the neural system. The human nervous system is divided into two parts: The central nervous system (CNS) and the Peripheral nervous system (PNS). You will find neural control and coordination class 11 notes self-study here. Also, see the solutions of NCERT Class 11 Biology Chapter 18: Neural Control and Coordination.
Table of Content
- Neural System
- Human Nervous System
- Neurons
- Generation and Conduction of Nerve Impulse
- Transmission of Nerve Impulses
- Central Nervous System
- FAQs on Neural Control and Coordination
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