1. T-Body Systems A-Circulatory, Respiratory, and Lymphatic Notes L-none E-Lab tomorrow (wear sneakers)

2. Circulatory, Respiratory, and Lymphatic System Notes
EQ: How do the circulatory, respiratory, and lymphatic systems work together to maintain homeostasis?

3. Circulatory System Function: --uses blood
to carry oxygen and
nutrients to and from
your cells;
transports waste (CO2,
urea) as well

4. --red blood cells (carry O2)
Organs Blood
--plasma (fluid)
--red blood cells (carry O2)
--white blood cells (fight infections)
--platelets (create clots to stop
bleeding)

5. Note: this is still under organs
Heart
--four chamber pump
--sends blood thru entire body
--Exercise leads to an increase in
heart rate

7. Blood Vessels Arteries
--Carry blood away from heart
--oxygen on red blood cells
carried to body
Veins
--carry blood towards heart
--carbon dioxide on red blood
cells carried to lungs
Capillaries
--smallest
--carry blood to all other cells
--connection between veins
and arteries

8. brings oxygen into the lungs
Respiratory System
brings oxygen into the lungs
(the major respiratory organ)
Blood absorbs oxygen and
releases CO2
Nitrogen from air is not used by
the body
Diseases: asthma, emphysema,
lung cancer

9. --air then flows in becomes 2 tubes—
Organs Nose
--Gases enter and exit here
Pharynx (throat)
--air then flows in becomes 2 tubes—
trachea and esophagus
Larynx (vocal chords)
--vibrates to make sound from airflow
Trachea (windpipe)
--passageway between the larynx and
the lungs
--splits into tubes called bronchi

10. --split and enter lungs --branch out in the lungs into bronchioles
--tiny sacs at the end called alveoli
Alveoli
--oxygen and carbon dioxide are exchanged
Diaphragm
--Involuntary muscle that allows ribs to move
in breathing

12. Lymphatic System (Immune) uses white blood cells to fight disease/infection absorbs excess fluid into tissues

13. Organs If you get sick and go to the doctor,
you’ll get examined to see if these are swollen
Lymph Nodes
--hold white blood cells
--remove diseases and dead cells
from lymph fluid
Spleen
--filters blood of dead cells
--releases white blood cells
Tonsils
--uses white blood cells to fight
infection
--may become infected and need
removal

14. Working Together circulatory system carries
all materials (oxygen,
nutrients waste)
throughout the body.
Unites systems that have to
move stuff.