Transcript 8th Grade Health

8TH GRADE HEALTH
Cardiovascular/ Respiratory System
SOL: PEP.
Target: The student will understand the importance of
maintaining healthy body systems and their
interdependence related to overall health.
BELL RINGER

Journal:
 Why do people exercise? What does it mean to
be active? What kinds of activities do you do
that keep your heart healthy?
BREAK

Your last chance to use the bathroom and get a
drink.
VOCABULARY
 Arteries-
Blood vessels that carry blood
away from the heart to other parts of the
body.
 Aorta- Largest blood vessel, carries oxygen
rich blood away from the heart.
 Veins- Blood vessels that carry blood from
the body back to the heart.
 Inferior Vena Cava- Largest vein, carries
oxygen poor blood to the heart
 Superior Vena Cava- Carries oxygen poor
blood to the heart.
VOCABULARY
 Capillaries-
Tiny blood vessels that
connect the veins and arteries to the
body’s cells.
 Valve- one-way opening from one
chamber or blood vessel to another,
prevents the back-flow of blood.
 Hypertension- Also called high
blood pressure.
 Heart Attack- The blockage of blood
flow to the heart.
VOCABULARY
 Stroke-
Results from blood clots that block
vessels in the brain, or form the rupture of a
blood vessel in the brain.
 Arteriosclerosis- A condition in which
arteries harden.
 Bronchi- The main opening which air enters
the lungs.
 Alveoli- Tiny air sacks in the lungs where
carbon dioxide is exchanged with oxygen.
 Asthma- A serious chronic condition that
causes tiny air passages in the respiratory
system to become narrow or blocked.
LABELING OF THE HEART
M- Aorta
 B- Superior Vena Cava
 E- Right Ventricle
 I- Left Atrium
 H- Pulmonary Vein
 A- Right Atrium
 K- Left Ventricle
 G- Pulmonary Artery
 D- Valve
 C- Inferior Vena Cava

BLOOD TRAVEL THROUGH THE BODY
A
system of Blood Vessels carries the blood
through the body. These vessels include
Arteries, Veins, and Capillaries. The
vessels and the heart make up the
Circulatory System.
 Let’s follow a drop of blood through the blood
vessels. When it leaves the LEFT
VENTRICLE of the heart, it goes into the
Aorta. This is the largest blood vessel in the
body. This vessel branches so that the drop of
blood can move into smaller arteries into the
head, arms or legs.
BLOOD TRAVEL THROUGH THE BODY
 The
droplet travels into smaller and
smaller branches of arteries until it
finally enter a blood vessel so tiny that it
is naked to he eye. In this vessel, known
as a Capillary, nutrients are exchanged
for waste products.
 Now that the blood has given up its
Food and Oxygen, it must return to the
heart to refuel. The droplet of blood
leaves the capillary, and heads into a
larger blood vessel called a Vein.
BLOOD TRAVEL THROUGH THE BODY
 The
blood makes its way through branches of
veins until it finds itself in the largest vein
found in the body. This vein has two
separate entranceways into the heart. Blood
in need of refueling coming from the head
and arms enters the heart through the
Superior Vena Cava. Blood in need of
refueling coming from the legs enters the
heart through the Inferior Vena Cava.
 The Vena Cava’s pour blood lacking oxygen
into which chamber of the heart? Atrium.
FINDING YOUR TARGET FITNESS ZONE
1. Subtract your age from 220. This will tell
you your maximum heart rate.
 2. Multiply your maximum heart rate x 60%.
This number is your minimum heart rate
for fitness to take place.
 3. Multiply your maximum heart rate x 85%.
This number is your maximum heart rate
for fitness to take place.
 4. Your target heart rate falls between your
maximum heart rate and your minimum
heart rate.

EXAMPLE

220-13= 207
207 = Max Heart Rate

207 x .6= 124
124 = Minimum heart rate for fitness

207 x .85= 176
176 = Maximum heart rate for fitness

Target Heart Rate falls between:
124-176
SMOKING AEROBICS

Taking your pulse
Find your pulse in your neck or on your wrist
 The teacher will time 6 seconds.
 Add a zero to your number

SMOKING AEROBICS

Once you have answered question 1
Find a partner.
 Get a blue step.
 Have a seat on the blue step with your partner.
 Your teacher will guide you through steps #2 and #3.

SMOKING AEROBICS (HOMEWORK)

Once you have finished complete questions
1-10 on the back.
TABLE OF CONTENTS
1)
2)
3)
4)
Journal
Cardiovascular/Respiratory
Vocab/Continued
Labeling Heart
Smoking Aerobics/ Lab Questions
VIDEO

Real World Science: Circulatory and
Respiratory Systems

Safari Montage

http://10.197.3.241/SAFARI/montage/play.php?keyindex=86
247&location=005849