HW: Get binder organized, if necessary. Open Book
Quiz on Tuesday 12/8. Unit Test on Friday, 12/11
Current Events next Thursday Roll Call #13-16
Do Now:
12/4/15
1. Take out Web quest HW.
2. Move into quiz positions, clear
off your desk of everything
EXCEPT HW.
After turning in the Quiz:
• Label the shapes and draw arrows to show
the direction of blood flow.
*Add in the four chamber of the heart and
the major vessels (aorta, vena cava,
pulmonary artery, pulmonary vein)
Heart
Body
Lungs
Heart
Vena Cava
Body
Right
Atrium
Right
Ventricle
Pulm. vein
Left
Atrium
Left
Ventricle
Aorta
Pulm. artery
Lungs
• Write a paragraph describing the pathway of
blood through the body.
• In your description be sure to use the following
terms AND UNDERLINE THEM:
Right atrium
Right ventricle
Left atrium
Left ventricle
Aorta
Vena Cava
Body
Lungs
Pulmonary Artery
Pulmonary Vein
Oxygen Poor Blood
Oxygen Rich Blood
The Pathway of Blood
• First the oxygen poor blood moves into the right atrium
through the vena cava. Next, the oxygen poor blood
moves into the right ventricle. The blood then leaves the
heart though the pulmonary artery and goes to the lungs
to pick up oxygen.
• The oxygen rich blood then comes back to the heart
through the pulmonary veins and flows into the left
atrium. The blood next moves to the left ventricle and
then goes out to the body cells through the aorta.
• The oxygen rich blood delivers oxygen and nutrients to
all of the cells. After, the oxygen poor blood will flow
back to the heart through veins, back to the Vena Cava
and the process begins again.
Current Events!
Hypertension
Description: consistent high blood pressure
Causes: age, birth control pills, medicines, pregnancy,
kidney failure, thyroid disease etc.
Symptoms: None (“silent killer”)
Treatment:
1.Lifestyle changes: change diet, no smoking,
less/no stress
2. Medication: diuretics, beta blockers etc.
Risk Factors:
1) Obesity
2)Ethnicity/Race
3) Age
4)Gender
5) Excess Salt/Smoking/Alcohol
Atherosclerosis
Description: artery walls thicken
(“hardening of the arteries”) plaque
builds up inside your arteries.
Causes: 1) exact cause is unknown
2) High amounts of fats and cholesterol in the blood
3) High blood pressure
4) High blood sugar
5) Smoking
Symptoms: none until severely narrows or blocks an artery
Treatments: changing diet (DASH), stop smoking, take
medications. Medical procedures (like angioplasty)
What is cholesterol?: waxy, fat-like substance that’s found
in all cells of the body.
Arrhythmia
Description: problem with the rate or
rhythm of the heartbeat
Causes: electrical signals that control
the heartbeat are delayed or blocked
Symptoms:
1) Heart palpitations
2) A slow heartbeat
3) An irregular heartbeat
4) Feeling pauses between heartbeats
Treatment: medicine, procedures,
and surgery (pacemakers)
What is atrial fribillation?
Most common type of A-Fib. Involves a
very fast/irregular contraction of atria.
Normal Heart Rhythm
Arrhythmia
Stroke
Description: A stroke occurs if the flow of oxygen-rich
blood to a portion of the brain is blocked.
What causes an Ischemic Stroke?: Artery that supplies
oxygen-rich blood to the brain becomes blocked. *Most
common type
What causes Hemorrhagic stroke? Artery in the brain
leaks blood or bursts open
Symptoms:
1) numb on one side
2) slurred speech
5) Severe Headache
3) confusion
4) sudden weakness
Treatment: Get to a hospital immediately!
medicines – blood thinners, surgery – to open blockage
Think someone is having a Stroke?
The Heart
www.brainpop.com
Pump Your Blood Song 2 min.
St. Joseph’s Aspirin Commercial