basic organs and functions of 11 body systems

1. Friday April 7th
, 2017
Today you need
• Notebook
• Something to write with
• Body outline
• Glue
• Scissors
Objective
• Identify the major
organs of each human
body system
• Describe the primary
function of each body
system

2. Human Body SystemsHuman Body Systems
An Introduction

3. • There are ~ 100 trillion
cells in the human body
• Each cell works both
independently and as part
of the larger body system

4. How does the body get so many cells
to work together?
Organization
•Cells  tissues 
organs  organ systems

6. • CellsCells –specialized to
perform certain
functions

7. • Tissues – groups of similar
cells that work together
• 4 basic types of tissues in
humans:
– Epithelial (skin)
– Connective (bone, cartilage)
– Nervous (neurons)
– Muscle

8. • Organs – groups
of different
tissue types that
work together

9. • Organ Systems – a
group of organs
that perform
closely related
functions

10. Comparisons
• We compared a cell to a factory.
• Let’s compare human body systems to…a
football team or a track team
• So one cell would be like: _____________
• Tissues would be like: ____________
• Organs would be like: ____________
• Organ systems would be like: __________

11. • There are 11 organ systems in the human
body
• They all work together to maintain
homeostasis

12. • Integumentary System:
– skin
– Protects the body
– regulates temperature inside the body
Label the skin on
Nelly

13. • Respiratory System:
– nose, trachea, lungs
– Brings in O2 and releases
CO2
Label the lungs
and trachea on
Nelly

14. Human Body Systems
• Digestive System:
– mouth, esophagus,
stomach, intestines
– Digest food and absorb
nutrients, eliminate waste
Label the
stomach on Nelly

15. • Excretory/
UrinarySystem:
– kidneys, bladder
– Eliminates waste
Label the kidneys
and bladder on Nelly

16. • Skeletal System:
– bones, cartilage, ligaments,
tendons
– Supports the body, protects
organs
Label the femur
on Nelly

17. • Muscular System:
– skeletal, smooth, and
cardiac muscle
– produce movement
Label the deltoid
on Nelly

18. • Circulatory System:
– heart, blood vessels,
blood
– Brings needed materials to
cells and removes waste
from cells
Label the heart, major
arteries and veins on Nelly

20. • Endocrine System:
– glands
– Controls growth and
development
Label the thyroid
gland on Nelly

21. • Reproductive System:
– reproductive organs
– Produces sperm or ova
Label the pituitary
gland on Nelly

22. • Immune System:
– white blood cells
– Protects the body
from disease
Label the bone
marrow on Nelly

23. • Nervous System:
– brain, spinal cord, nerves
– Recognizes stimuli and
helps the body respond
Label the brain
and spinal cord
on Nelly

24. Directions
1. Assemble Human Body
Systems book
2. For each body, draw the
major organs of the
system
3. Fold the body in ½
4. On the outside write the
name of the system
5. Underneath the body
write the major function(s)
of that system
1. Respiratory + Circulatory
2. Digestive
3. Immune
4. Nervous
5. Endocrine/Reproductive
6. Muscular/Skeletal
7. Integumentary/Urinary

25. Human Body Systems Book

26. Human Body Systems Book
Nervous
system
Skeletal
system

27. Human Body Systems Book

28. Human Body Systems Book
Function: