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Topic: Circulatory systemAim: Describe the components of the
blood and their functions.
Do Now: Take out your blood reading notes.
a.Pass up your procedures.b.Take out your Digestive System ISN
HW: Finish blood vessels reading notes.Surface Area Lab due tomorrow!
Oral cavity
Stomach
Pancreas
Small intestine
Rectum
Gall bladder
Large intestine
B
A
C
D
E
F
G
H
I
J
Salivary glands
Esophagus
Liver
Did you know…•A newborn baby has about 1 cup of blood in his body.•It would take 1,200,000 mosquitos, each sucking once, to completely drain an average human of blood.•Blood makes up about 7% of your body weight.•It only takes 20 to 60 seconds for a drop of blood to travel from the heart, through your body, and back to the heart again.
Did you know…
•A red blood can make a complete circuit of your body in 30 seconds.
•There are 150 Billion red blood cells in one ounce of blood
•Identify and destroy pathogens (disease-causing microorganisms)
Describe the function of white blood cells.
•Involved in BLOOD CLOTTING, and repair and regeneration of connective tissue
Describe the function of platelets.
A. Stick to edge of cut
Circulatory System: Blood Platelets
•PlasmaIdentify the name of the liquid that transports red blood cells, white blood cells and platelets.
Function of plasma:• Transports materials:
–Salt, sugar, proteins–Wastes–Enzymes–Blood cells–Hormones
Let’s summarize…
1. Identify the four parts of the blood.
2. Where are blood cells produced?
3. Describe the function of plasma.
4. Describe the function and shape of red blood cells.
5. What do red blood cells contain?
6. Describe the function and shape of white blood cells.
7. Describe the function and shape of platelets.
Review: Identify the part of blood being described.
1. Most numerous blood cell.2. Carries enzymes.3. Involved in blood clotting.4. Carries oxygen.5. Largest blood cell.6. Made up of 90% water.7. Involved in blood clotting.8. Protect the body against disease.9. Carries hormones.
What is a major difference between red blood cells and white blood cells?
1. Red blood cells contain hemoglobin, but white blood cells do not.
2. Red blood cells can move, but white blood cells cannot.
3. Red blood cells contain nuclei, but white blood cells do not.
4. Red blood cells engulf foreign bacteria, but white blood cells do not.
What component of blood is important in healing wounds on the skin?
1.red blood cells
2.urea
3.platelets
4.white blood cells
Where are red and white blood cells made in the body?
1.in lymph nodes
2.in bone marrow
3.at the sinoatrial node
4.in the heart
What component of blood plays a role in protection against disease?
1.white blood cells
2.platelets
3.urea
4.red blood cells