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Body Organization
a. cell, b. tissue, c. organ, d. organ system
Cell
d. cell membrane
Nucleus
Every thing in a cell between the cell
membrane and the nucleus
6. True
7. A tissue is a group of cells working together
for the same purpose
1.
2.
3.
4.
5.
8. Muscle – makes parts of the body move
Nervous – controls body functions
Connective – connects parts and support
8. Epithelial – surrounds organs and protects
them
9. Organ
10. c. lungs
11. True
12. A group of organs working together for a
purpose
13. d
15. c
17. e
14. f
16. a
18. b
LEVELS OF
ORGANIZATION IN
LIVING THINGS
All living things are organized
into several basic levels of
organization.
 Starting with the smallest and going to the
largest it goes…
 Cell -> Tissue ->Organ ->Organ system -> Organism
Cell
 The basic level of Organization for all living
things is the cell.
 Complex organisms are composed of many
cells
Examples:
 Heart Cell
 Brain Cell
 Muscle Cell
Tissue
 Within an organism groups of cells with similar
functions combine to make up tissues.
 A tissue is a collection of cells working together
to perform a specific job
 FOUR BASIC TISSUES
Connective Tissue
Nervous Tissue
Muscle Tissue
Epithelial Tissue
Organ
 Two or more types of tissues that work
together to complete a specific task
Examples:
 Heart
 Brain
 Muscle
 Skin
Organ Systems
 Group of organs working together for a
common goal combine to make up organ
systems
Example:
 Cardiovascular / Circulatory System
 Nervous System
 Muscular System
Organism
 Several organ systems working together
combine to make up an organism.
 An organism is an entire living thing that can
carry out all basic life processes.
 Examples:
 Human
 Dog
 Turtle
 Tree
Animal Organization
CELL
TISSUE
ORGAN SYSTEM
ORGAN
ORGANISM
Plant Organization
CELL
TISSUE
ORGAN
ORGAN SYSTEM
ORGANISM
Levels of Organization
ORGANISM
ORGAN SYSTEM
ORGAN
TISSUE
CELLS
Organ Systems
 The human body is made up of several organ
systems. We will be discussing 7 in this class.
Respiratory System
 Takes in oxygen and eliminate carbon
dioxide
Levels of Organization
Organs
Tissues
Cells
Lungs
Trachea
Epithelial
Connective
Muscle
Lung cell
Muscle cell
Circulatory System
 Transport materials (gases and
nutrients) to and from cells.
Levels of Organization
Organs
Tissues
Cells
Heart
Arteries
Veins
Muscle
Epithelial
Nervous
Muscle cell
Vein cell
Digestive System
 Breaks down food and absorbs
nutrients.
Levels of Organization
Organs
Tissues
Cells
Stomach
Pancreas
Liver
Epithelial
Muscle
Connective
Stomach cells
Pancreatic cells
Liver cells
Nervous System
 Detects information from the
environment and controls body functions.
Levels of Organization
Organs
Brain, spinal
cord, nerves
Tissue
Nervous
Connective
Cells
Brain cells
Nerve cells
(neurons)
Muscular System
 Enables movement of body and
internal organs.
Levels of Organization
Organs Muscles (Biceps,
triceps,
abdominals)
Tissue
Muscle
Connective
Cells
Muscle cells
Integumentary System
 Protects the body from damage and
the outside
Levels of Organization
Organ Skin
Tissue Epithelial
Connective
Cells
Epidermis cell
Skin cell
Skeletal System
 Supports and protects the body
Levels of Organization
Organs
Bones (skull,
ribs, vertebrae)
Tissue
Connective
Epithelial
Cells
Bone cell
(0steocyte)
A. Levels of Organization
ORGAN
SYSTEM
CELL
TISSUE
ORGAN
ORGANISM
Cell
cells
tissues
organs
organism
B. Matching Organ Systems






Circulatory – Red
Respiratory – Blue
Nervous –Yellow
Digestive – Green
Muscular – Orange
Skeletal - Purple
Organ System Mini-book
 Instructions on p. 18
 You will be creating a mini book showing the
organization in organ systems.
 First you need to make your mini-book
(follow instructions)
1
4
7
2
5
8
3
6
9
Mini book
Organ Systems Quiz
The skeletal system has which of the 3. Which of the following systems
following functions?
transports nutrients and gases to
A. Takes in oxygen and eliminate
the cells of the body?
carbon dioxide.
A. digestive
B. Detects information from the
B. circulatory
environment and controls body
C. nervous
functions.
D. Integumentary
C. Supports and protects the body.
4. In humans, where does the
D. Enables movement of body and
exchange of oxygen and carbon
internal organs.
dioxide take place?
A. Heart
C. skin
B. Ovary
D.
lungs
2. Which organ helps in the break
down and absorption of nutrients? 5. Which of the following systems
helps to control and coordinate the
A. the stomach
body's actions?
B. the femur bone
A. digestive
C. the brain
B. nervous
D. your foot
C. respiratory
D. circulatory
1.