ICSE Class 8 Biology | Chapter 4 : Human Body: Endocrine, Circulatory, and Nervous System by Abraham | Learn Smarter
K12 Students

Academics

AI-Powered learning for Grades 8–12, aligned with major Indian and international curricula.

Academics

Grades

Grade 8 Grade 9 Grade 10 Grade 11 Grade 12

Curriculum

CBSE ICSE IB
Professionals

Professional Courses

Industry-relevant training in Business, Technology, and Design to help professionals and graduates upskill for real-world careers.

Professional Courses
Games

Interactive Games

Fun, engaging games to boost memory, math fluency, typing speed, and English skills—perfect for learners of all ages.

games
Typing
Memory
Math
English Adventures
Knowledge
Chapter 4 : Human Body: Endocrine, Circulatory, and Nervous System

The human body regulates essential functions through three primary systems: the endocrine system, which uses hormones for chemical control; the circulatory system, which transports oxygen and nutrients via the heart-blood network; and the nervous system, which transmits rapid electrical signals for immediate responses. These systems work in concert to maintain homeostasis and respond to environmental stimuli.

Enroll to start learning

You’ve not yet enrolled in this course. Please enroll for free to listen to audio lessons, classroom podcasts and take mock test.

Sections

  • 1

    Endocrine System

    The endocrine system consists of glands that release hormones, regulating various bodily functions.

    Learning Practice

  • 1.1

    Major Glands And Hormones

    This section covers the major glands of the endocrine system and their respective hormones, which play crucial roles in maintaining the body's homeostasis.

    Learning Practice

  • 1.2

    Did You Know?

    This section highlights intriguing facts related to the endocrine, circulatory, and nervous systems, emphasizing their interconnections and functions.

    Learning Practice

  • 2

    Circulatory System

    The circulatory system is a vital network that transports blood, oxygen, nutrients, and waste throughout the human body.

    Learning Practice

  • 2.1

    Blood Components

    The blood is an essential fluid in the human body composed of various components including plasma, red blood cells, white blood cells, and platelets, each serving crucial functions.

    Learning Practice

  • 2.2

    Blood Composition

    Blood is made up of plasma, red blood cells, white blood cells, and platelets, each playing crucial roles in the body.

    Learning Practice

  • 2.3

    Heart Structure

    This section focuses on the structure of the heart, detailing its four chambers and the role of valves in preventing backflow.

    Learning Practice

  • 2.4

    Activity

    The section outlines activities designed to engage students in understanding the human body's control systems—specifically focusing on pulse measurement and model making.

    Learning Practice

  • 3

    Nervous System

    The nervous system functions as the body's electrical wiring, coordinating fast responses and reflexes, and works seamlessly with the endocrine and circulatory systems.

    Learning Practice

  • 3.1

    Neural Pathway

    Neural pathways provide the framework for the nervous system's communication, enabling the body to respond to stimuli effectively.

    Learning Practice

  • 3.2

    Brain Parts Table

    The Brain Parts Table outlines the significant areas of the brain and their respective functions.

    Learning Practice

  • 4

    System Interactions

    The section describes how the endocrine, circulatory, and nervous systems interact to maintain homeostasis and manage responses to stress.

    Learning Practice

  • 4.1

    Stress Response Example

    The stress response example illustrates how the nervous, endocrine, and circulatory systems work together when the brain perceives danger.

    Learning Practice

  • 4.2

    Case Study: Diabetes

    This case study explores diabetes, its causes linked to insulin failure in the pancreas, the resulting effects of high blood sugar, and treatment methods including insulin injections and dietary management.

    Learning Practice

  • 5

    Chapter Summary

    This chapter provides an overview of the human body's endocrine, circulatory, and nervous systems, highlighting their functions, interactions, and importance in maintaining balance.

    Learning Practice

  • 6

    Activities

    This section presents hands-on activities that solidify understanding of the human body systems including model-making and reaction time testing.

    Learning Practice

  • 6.1

    Model Making

    This section discusses the human body's control systems and includes interactive activities like model making.

    Learning Practice

  • 6.2

    Experiment

    The section discusses the interconnected roles of the endocrine, circulatory, and nervous systems in maintaining homeostasis in the human body.

    Learning Practice

  • 7

    Visuals To Add

    This section focuses on the visuals needed to enhance understanding of the human body's control systems: the endocrine, circulatory, and nervous systems.

    Learning Practice

  • 8

    Amazing Fact

    This section highlights an intriguing fact about the nervous system's speed of signal transmission, comparing it to an F1 racing car.

    Learning Practice

  • 9

    Assessment Questions

    This section presents assessment questions focused on key systems of the human body, including the endocrine, circulatory, and nervous systems.

    Learning Practice

References

bio ch4.pdf

Class Notes

Memorization

What we have learnt

  • The endocrine system utiliz...
  • The circulatory system is r...
  • The nervous system enables ...

Revision Tests