Transcript The Human Body Tissues Organs Function

The Human Body
Tissues
Organs
Function
Organization
• Smallest part of the human body that performs
all the necessary life functions is ___________
• Cells – the smallest unit of life
• Tissues – groups of cells with similar structure
and function
• Organs – groups of tissues organized to perform
a particular task
• Organ Systems – groups of organs that work
together to perform a necessary life function
(respiration, circulation, digestion)
4 Types of Tissues
Tissue
Function
Example
Muscle Tissue Moves the body and
substances within the
body
Biceps; triceps;
heart; arterial
walls
Nerve Tissue
Transmits messages
throughout the body
Brain; nerve
cord; neurons
Epithelial
Tissue
Covers the surfaces
of your body
Skin; lining of
digestive
system
Connective
tissue
Connects or holds
together parts of the
body
Bone; cartilage;
fat; blood;
tendons;
ligaments
Picture
Human Body Systems and Their Functions
Organ System Function
Integumentary
(skin)
Protects; receives
stimuli from the
environment; helps
control body temp;
produces vitamin D;
removes some waste
Skeletal
Supports and protects
the body; allows
movement; makes blood
cells
Muscular
Moves the body and
substances within it
Digestive
Breaks down food into
simple nutrients that
body cells can use
Example
Organ
System
Function
Circulatory
Delivers nutrients and
oxygen to body cells
and carries away
wastes from cells
Helps protect the body
from disease-causing
organisms
Lymphatic
Respiratory
Moves oxygen through
the blood and carbon
dioxide out of the body
Excretory
Removes cells’ waste
products
Example
Organ System
Function
Nervous
Receives and
transmits messages
throughout the body
Endocrine
Controls many body
functions to keep the
body working properly;
coordinates systems
Reproductive
Produces male and
female sex cells;
female organs nourish
and protect
developing embryo
Immune
Protects the body
against diseasecausing organisms
and substances
Example