Title: Circulatory and Respiratory Systems
1Circulatory and Respiratory Systems
Plaques forming in arteries from cholesterol
2PA. STANDARDS
- 3.1.10. A.  Apply the elements of scientific
inquiry to solve problems. - 3.1.10. B.Examine the advantages of using models
to demonstrate processes and outcomes - 3.2.10. A.  Apply the elements of scientific
inquiry to solve problems. - 3.3.10. B.   Describe and explain the chemical
and structural basis of living organisms.
3Circulatory System
- Objectives
- List five types of molecules that are transported
by the cardiovascular system - Differentiate between arteries, capillaries, and
veins. - Relate the function of the lymphatic system to
the functions of the cardiovascular and immune
systems
4DO NOW
- Analyze the following graph and list three facts
that the data tells you. - What data is missing from the graphs?
5Leading Causes of Death for Black or
African-American Males and Females United States
2002 Source CDC
D Assault (Homicide) E HIV(AIDS) F Diabetes
Mellitus G Nephritis, Nephrotic Syndrome
A Total CVD (Preliminary) B Cancer C Accidents
6Circulatory System- the bodys highway system
- Function- to connect the muscles and organs of
the body through an extensive system of vessels
that transport blood and different types of
molecules to the tissues. - Five types of molecules
- Nutrients from digested food (carbs, lipids,
proteins) - Oxygen from the lungs
- Metabolic wastes for excretion (CO2)
- Hormones
- Heat (Homeostasis)
7Circulatory System
- Structures- (Fig. 2 pg. 873 Holt)
- Heart- a muscular pump
- Arteries-blood vessels that carry blood away from
the heart (A away) - Arterioles- connects arteries to capillaries
- Capillaries-tiny blood vessels that exchange
gases, nutrients, hormones and molecules. - Venules-connect capillaries to veins
- Veins- returns blood to the heart
- Valves prevent blood from flowing backwards
- Weak and dilated veins Varicose veins,
hemorrhoids
8Circulatory System Activity
- In groups of three draw an outline of a human
body on the paper - Draw the heart.
- Using the red marker draw the arteries and
arterioles and capillaries branching off. - Using the blue markers draw the venules and veins
leading back to the heart. - Place arrows showing the direction of the blood
flow. - Using figure 4. (p. 875) add the organs of the
lymphatic system.
9Cardiovascular System
10Assessment
- List five types of molecules that are transported
to the tissues in your body by the blood stream. - List the direction of blood flow beginning with
your heart. - List three organs that are in the lymphatic
system.
11Components of Blood
- Do Now
- List two diseases of the blood.
12Components of Blood
- Plasma- water, metabolites and wastes. Salts,
proteins - Blood cells
- Red blood cells- carry oxygen, 1mL 5 million, 4
months, produced by stem cells in bone marrow - White blood cells- leukocytes, defense,
1-2wbc/1000 rbc, have nuclei - Platelets-not a cell, clotting
13What blood type are you?
14Activity Looking at Cells
- Using the microscope observe and draw each type
of blood cell. - What does a sickle cell look like?
- Compare the shape to a normal red blood cell.
- How does the shape effect the function?
15 OBJECTIVES
- Summarize the path that blood follows through the
heart. - Describe three ways to monitor the health of the
circulatory system. - Name two vascular diseases, and identify factors
that contribute to their development.
16Circulation of Blood- Fig 9, p. 881
- Superior and inferior vena cava
- Right Atrium
- Right Ventricle
- Pulmonary arteries
- Lung
- Pulmonary veins
- Left atrium
- Left ventricle
- Aorta
- Body
17Monitoring the CV System
- Blood pressure is the force exerted by blood as
it moves through blood vessels. - Electrocardiograms (ECGs or EKGs) measures tiny
electrical impulses produced from the heart
muscle as it contracts - Heart Rate- pulse- pressure waves within an
artery caused by contractions of the left
ventricle
18ACTIVITY
- Find a partner
- Using your index and middle fingers to find your
pulse on your wrist or neck - Your partner will watch the clock
- Count how many times you feel your heart beat
for ten seconds - Multiply this number by six
- Do this three times and find your average resting
heart rate - Now it is your partners turn
19ACTIVITY
- Now stand up and do as many jumping jacks you can
for one minute - Your partner will watch the clock
- Find your pulse and count how many heart beats
for 10 seconds - Multiply this number by six
- Do this three times, record your average
- Now it is your partners turn
20Data Analysis
- How does your heart rate differ from your
classmates? - Why does your heart rate increase during
exercise? - What factors would contribute to a difference in
these numbers?
21Heart Attacks and Strokes
- Heart attacks occur when an area of the heart
muscle stops working and dies due to blockage in
an artery. - Strokes occur when an area of the brain dies.
Death or varying degrees of disability may result.
22Blockage of Arteries
- Blockage of an artery may be caused by plaque
build up or a blood clot and it blocks the flow
of blood to the heart or brain. - Atherosclerosis-build up of fatty deposits,
including cholesterol - Arteriosclerosis- calcium is deposited in the
fatty buildup and causes hardening of the
arteries.
23Risk Factors of Heart Disease
- Uncontrollable risk factors
- Age
- sex
- family history of heart disease
- Controllable risk factors
- High blood pressure
- High cholesterol levels
- Cigarette smoking
- So exercise, eat a healthy diet, treat high blood
pressure and cholesterol levels!
24Activity
- Students will keep a week long record of the food
they eat and exercise. - Students will bring in the two nutritional labels
of their favorite foods. - Using the calorie/fat content book look up the
caloric and fat contents of the foods you had. - Understanding food labels video.
25Assessment
- Are you at risk?
- What changes can you make in your life style to
lower your risk? - How will you convince your family?
- How can you make a family recipe healthier?
26RESOURCES
http//www.americanheart.org/ http//www.fda.gov