IB Grade 12 Physical and Health Education (SEHS) | Chapter 1: Anatomy and Physiology by Prakhar Chauhan | Learn Smarter
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Chapter 1: Anatomy and Physiology

Chapter 1: Anatomy and Physiology

The chapter examines the anatomy and physiology of the human body, highlighting the skeletal, muscular, cardiovascular, and respiratory systems. Each system is discussed in terms of its structure, functions, and mechanisms, emphasizing their roles in supporting movement, transporting nutrients and gases, and maintaining homeostasis during physical activity.

19 sections

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Sections

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  1. 1
    Anatomy And Physiology

    This section covers the foundational aspects of the human skeletal and...

  2. 1.1
    Skeletal System

    The skeletal system provides structure, protection, and supports movement in...

  3. 1.1.1
    Structure Of The Skeletal System

    The skeletal system is the body's framework, providing shape, support, and...

  4. 1.1.2
    Function Of The Skeletal System

    The skeletal system has critical functions, including providing support,...

  5. 1.1.3
    Classification Of Bones

    Bones are categorized by their shape and function into long, short, flat,...

  6. 1.1.4
    Axial And Appendicular Skeleton

    The axial skeleton protects vital organs, while the appendicular skeleton...

  7. 1.2
    Muscular System

    The muscular system comprises three types of muscle tissues essential for...

  8. 1.2.1
    Types Of Muscle Tissue

    This section covers the three types of muscle tissue in the human body:...

  9. 1.2.2
    Major Skeletal Muscles

    This section covers the primary skeletal muscles that facilitate movement in...

  10. 1.2.3
    Mechanism Of Muscle Contraction

    Muscle contraction occurs through the sliding filament theory, involving...

  11. 1.3
    Cardiovascular System

    The cardiovascular system, comprising the heart and blood vessels, is...

  12. 1.3.1
    Structure Of The Heart

    The heart is a muscular organ with four chambers that pumps blood throughout...

  13. 1.3.2
    Function Of The Heart

    The heart serves as a double pump, facilitating both pulmonary and systemic...

  14. 1.3.3
    Blood Vessels And Circulation Pathways

    This section covers the types of blood vessels and the circulation pathways,...

  15. 1.3.4
    Circulatory Pathways

    This section covers the circulatory pathways of the cardiovascular system,...

  16. 1.4
    Respiratory System

    The respiratory system facilitates gas exchange, allowing the body to...

  17. 1.4.1
    Anatomy Of The Respiratory System

    The respiratory system facilitates gas exchange between the body and the environment.

  18. 1.4.2
    Mechanics Of Breathing

    This section describes the mechanics involved in inhalation and exhalation...

  19. 1.4.3
    Gas Exchange Processes

    Gas exchange is the process by which oxygen enters the blood and carbon...

What we have learnt

  • The skeletal system provides support, protection, and produces blood cells.
  • Muscles work through contraction and relaxation to facilitate movement.
  • The heart functions as a dual pump to circulate blood throughout the body.

Key Concepts

-- Skeletal System
The framework of the body composed of bones and connective tissues that provides structural support and protection.
-- Muscle Contraction
The process by which muscles generate force through interactions between actin and myosin filaments.
-- Circulation
The movement of blood throughout the body, including pulmonary and systemic circulation.
-- Gas Exchange
The process by which oxygen and carbon dioxide are exchanged between the lungs and blood.

Additional Learning Materials

Supplementary resources to enhance your learning experience.