Human Body: Introduction to Human Body, Composition of the Human Body (For CBSE, ICSE, IAS, NET, NRA 2022)

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Introduction to Human Body

  • The human body defines the structure of a human being.
  • It is composed of different types of cells that together create tissues and organ systems.
  • The human body comprises:
    • A head
    • Neck
    • Trunk (thorax and abdomen)
    • Arms and hands
    • Legs and feet

Study of the Human Body

Study of the Human Body


  • It is the scientific study of form and shapes of human beings.
  • The skeleton helps in protecting several vital organs such as lung and liver.
  • Muscles assist the bones in locomotion being specialized tissues.


  • It is the scientific study of functions and mechanisms in a living system.
  • It focuses on how organisms, organ systems, individual organs, cells, and biomolecules carry out the chemical and physical functions.


  • It is the study of the microanatomy of cells, tissues, and organs as seen through a microscope.
  • It examines the correlation between structure and function.


  • The branch of biology that studies the prenatal development of gametes (sex cells) .
  • It also includes fertilization, and development of embryos and foetuses.

Composition of Human Body

Composition of Human Body

Various Components of the Human Digestive System

Human Digestive System and Components

Reproductive System

Male Reproductive System

  • Penis
  • Urethra
  • Scrotum
  • Testicle
  • Seminal vesicle
  • Vas deferns

Female Reproductive System

  • Vagina
  • Cervix
  • Endometrium
  • Ovary
  • Fimbriae
  • Fallopian tubes
  • Uterus

Human Respiratory System

  • Trachea
  • Bronchi
  • Bronchioles
  • Lungs
  • Diaphragm

Nervous System

Central Nervous System

  • Forebrain
  • Midbrain
  • Hindbrain

Peripheral Nervous System

  • Somatic nervous system
  • Autonomic Nervous System


Q 1. What are the various components of Human Digestive System?


The various components of Human Digestive System are namely mouth, teeth, tongue, oesophagus, stomach, liver, pancreas, gastrointestinal tract, small and large intestines, and rectum.

Q 2. Define anatomy of the human body.


Anatomy of the human body can be defined as the scientific study of form and shapes of human beings.

Q 3. What are the two classifications of Human Nervous System?


The two classification of Human Nervous System are:

i) Central Nervous System consists of Forebrain, Midbrain, and Hindbrain.

ii) Peripheral Nervous System consists of Somatic Nervous System and Autonomic Nervous System

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