Coordination and Control — Chapter Summary
Telangana Open School (TOSS) · Class 12 · Biology
Summary of Coordination and Control for Telangana Open School (TOSS) Class 12 Biology. Part of the Telangana Open School (TOSS) Class 12 Biology syllabus.
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Overview
The human body performs countless activities every day — from walking and talking to thinking and reacting. All these actions require precise coordination between different organs and systems. This coordination is managed by two major systems: the Nervous System and the Endocrine System. The nervous
Key Concepts
The CNS consists of the brain
The CNS consists of the brain and spinal cord. It processes information, makes decisions, and sends out instructions. The brain is protected by the sk
Neurons are specialized cells that transmit
Neurons are specialized cells that transmit electrical signals called nerve impulses. At rest, the neuron has a resting potential due to ion differenc
A reflex is an automatic
A reflex is an automatic, involuntary response to a stimulus, mediated by the spinal cord without involving the brain. The pathway is called a reflex
The endocrine system consists of glands
The endocrine system consists of glands that secrete hormones directly into the blood. Hormones are chemical messengers that regulate metabolism, grow
Sense organs like the eye
Sense organs like the eye and ear detect external stimuli. The eye contains photoreceptors (rods and cones) that respond to light, while the ear has h
Learning Objectives
- Describe the structure and function of the nervous system and its subdivisions
- Identify and label the major parts of the brain and spinal cord and explain their roles
- Explain the structure of a neuron and how nerve impulses are conducted
- Understand reflex actions and the reflex arc
- Describe the structure and function of sense organs like the eye and ear
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Sources & Official References
Content is aligned to the official syllabus. Refer to the board website for the latest curriculum.
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