Transcript Chapter 47

Chapter 47
Circulatory and Respiratory
Systems
Electrocardiogram
Lymphatic System
Structure of the Human Heart
A Closer Look at
Blood Vessels
Systemic Circulation
Circulation Pathway
in the Human Body
Circulatory Loops in
the Human Body
Composition of Blood
Clotting Cascade
Blood Types
Mammalian
Lung Structure
Respiratory System in
the Human Body
Overview of Respiration
Your heart's job is to
pump blood around your
body. Its muscles
contract and squeeze out
blood. The left-hand side
pumps blood from the
lungs to the rest of your
body. The right-hand
side pumps stale blood
from your body back to
your lungs for a fresh
supply of oxygen.
Artery
Vein
Immune System
Response Time
Respiratory System
Your breathing parts
You usually cannot see
the air you breathe out.
But on cold days the air
you exhale is visible.
This is because your
breath contains water
vapor, as well as
carbon dioxide. As the
water vapor meets cold
air, it condenses and
turns into tiny droplets
of liquid water which
look like white puffs of
steam.
When you breathe in
your chest muscles
pull your ribs up and
out. Your diaphragm,
the muscle under
your chest, moves
down. Your chest
expands and your
lungs fill with air.
When you breathe
out, the muscles
relax. Your ribs move
down, and your
diaphragm moves up
to squeeze air out.
Inflammatory Response
Events of the Immune Response