The document provides an overview of various human body systems, including the circulatory, respiratory, central nervous, digestive, excretory, skeletal, muscular, reproductive, endocrine, exocrine, lymphatic, and immune systems. Each system is briefly described in terms of its functions and components, highlighting their roles in maintaining overall health and homeostasis. The document serves as a fundamental introduction to human anatomy and physiology.

1. HUMAN
SYSTEMS

2. HUMAN BODY

3. The circulatory system is a network consisting of blood,
blood vessels, and the heart. This network supplies
tissues in the body with oxygen and other nutrients,
transports hormones, and removes unnecessary waste
products.
CIRCULATORY SYSTEM

4. The human respiratory
system is a series
of organs responsible
for taking in oxygen
and expelling carbon
dioxide. The
primary organs of
the respiratory
system are the lungs,
which carry out this
exchange of gases as
we breathe
RESPIRATORY
SYSTEM

5. The central nervous
system (CNS) controls most
functions of the body and
mind. It consists of two parts
the brain and the spinal cord
The brain is the center of our
thoughts, the interpreter of ou
external environment, and th
origin of control over body
movement.
CENTRAL NERVOUS SYSTEM

6. The human digestive system consists of
the gastrointestinal tract plus the
accessory organs of digestion (the tongue, salivary glands,
pancreas, liver, and gallbladder). Digestion involves the
breakdown of food into smaller and smaller components,
until they can be absorbed and assimilated into the body.
DIGESTIVE SYSTEM

7. The excretory system is a passive
biological system that removes
excess, unnecessary materials
from the body fluids of an
organism, so as to help maintain
internal chemical homeostasis and
prevent damage to the body.
EXCRETORY SYSTEM

8. The skeletal
system includes all of the
bones and joints in the
body. Each bone is a
complex living organ that
is made up of many cells,
protein fibers, and
minerals.
The skeleton acts as a
scaffold by providing
support and protection for
the soft tissues that make
up the rest of the body
SKELETAL
SYSTEM

9. The muscular system is an
organ system consisting of skeletal,
smooth and cardiac muscles. It
permits movement of the body,
maintains posture and circulates
blood throughout the body.
MUSCULAR
SYSTEM

10. The reproductive system or genital system is a system of
sex organs within an organism which work together for the
purpose of sexual reproduction. Many non-living substances
such as fluids, hormones, and pheromones are also
important accessories to the reproductive system.
REPRODUCTIVE SYSTEM

11. The difference
between an endocrine
and exocrine gland?
An endocrine gland
secretes its products,
for example
hormones, directly
into the blood. ...
An exocrine gland
secretes its products
for example enzymes,
into ducts that lead to
the target tissue.
ENDOCRINE
AND
EXOCRINE
SYSTEM

12. The lymphatic system is a network of tissues and organs that
help rid the body of toxins, waste and other unwanted
materials. The primary function of the lymphatic system is to
transport lymph, a fluid containing infection-fighting white
blood cells, throughout the body
LYMPHATIC SYSTEM

13. The immune system is a complex network of cells and
proteins that defends the body against infection. The immune
system keeps a record of every germ (microbe) it has ever
defeated so it can recognise and destroy the microbe quickly
if it enters the body again
IMMUNE SYSTEM

14. GOOD LUCK