Page 14 - Focus PT3 2020 Science ( BI Version )

Science PT3 Chapter 2 Cell as the Basic Unit of Life
Systems in the Human Body
1. There are various systems in the human body that work together to carry out different
functions.
2. All these systems are coordinated to form a complete life. Form Form
Blood circulatory Respiratory system Digestive system Excretory system
system 1
Nose Mouth
Trachea Oesophagus Lung
Lung Liver
Heart Kidney
Stomach
Blood Small intestine Ureter
vessels Large intestine
Urinary
bladder
Skin
Breaks down complex
Transports respiratory Absorbs oxygen and food into smaller form so Removes excretory
gases, nutrients, releases carbon dioxide. that the nutrients can be products such as urea
hormones and waste easily absorbed into the and uric acid from the
products. body. body.
Integumentary system Muscular system Skeletal system Lymphatic system

Skull
Skin Thymus gland
Muscles Lymph
Lymph node
Bone Lymphatic
vessels

Made up of human Defends the body
skin that protects the Assists humans in Provides support to against infections.
body from infection and movement. the body and protects
keeps the body from internal organs such as
losing water excessively lungs and brain.
(dehydration).
Nervous system Endocrine system Reproductive system
Brain
Pituitary gland
Thyroid gland
Spinal cord Adrenal gland
Pancreas
Nerves Ovary (female)
Uterus
Testis (male) Vagina
Ovary Testis
Penis

Carries information in the Secretes hormones to
form of nerve impulses coordinate the body Produces sperm cells, ova and hormones to produce
and coordinates all the activities together with offspring.
body activities. the nervous system.

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