Join 60,000+ competitive exam aspirants
or with email
Your Cart
SubtotalтВ╣0
TotalтВ╣0
Examoogle тАв User тАв info@examoogle.com тАв EE-2024-8821
Chapter 1 of 12 тАв Page 1 of 248ЁЯФТ Protected PDF тАв Watermarked
Join 60,000+ competitive exam aspirants
In our body, brain and spinal cord together constitute the:
Endocrine system
Central nervous system
Peripheral nervous system
Autonomic nervous system
Central nervous system
The Central Nervous System (CNS) is the primary processing center of the human body, composed of the brain and the spinal cord. It is responsible for integrating sensory information and coordinating body responses.
The Central Nervous System (CNS) is the primary processing center of the human body, composed of the brain and the spinal cord. It is responsible for integrating sensory information and coordinating body responses.
Think of the brain as the CPU of a computer and the spinal cord as the primary data cable (bus) connecting the CPU to all peripheral hardware devices.
CSB: Central = Spinal Cord + Brain.
VmтАЛ=тИТ70┬аmV тАФ The typical resting membrane potential of a neuron in the CNS.
The CNS functions as a complex network of neurons that process electrochemical impulses. The brain serves as the command center for cognitive functions, while the spinal cord acts as the main conduction pathway for signals traveling between the brain and the peripheral nerves, facilitating both conscious movement and involuntary reflexes.
The CNS is protected by bony structures: the cranium protects the brain, and the vertebral column protects the spinal cord.
The brain and spinal cord are cushioned by cerebrospinal fluid (CSF), which provides buoyancy and protection against mechanical injury.
The CNS consists of grey matter (neuron cell bodies) and white matter (myelinated axons).
High-speed signal processing
Coordinated reflex actions for survival
Limited capacity for neuronal regeneration after severe damage
Highly susceptible to lack of oxygen (hypoxia)
Regulation of homeostatic functions like heart rate and body temperature
Processing of cognitive functions like memory, learning, and sensory perception
The brain contains approximately 86 billion neurons.
Option A (Endocrine system) uses chemical messengers (hormones) via blood; Option C (Peripheral nervous system) connects the CNS to limbs and organs; Option D (Autonomic nervous system) is a subdivision of the PNS controlling involuntary actions.
B is correct тАФ The brain and spinal cord are the structural components that define the central nervous system.
Always differentiate between the CNS (processing) and the PNS (transmission). In competitive exams, remember that the CNS is the 'center' for information integration.
Get instant step-by-step AI explanations, full shift Previous Year Papers (SSC GD, RRB, SSC JE), and regional rank analysis on the official Examoogle App.
Free Download тАв 100K+ Aspirants