1. Topic: Circulatory system
Aim: Describe the components of the blood and their functions.
Do Now: Take out your blood reading notes.
Pass up your procedures.
Take out your Digestive System ISN
HW: Finish blood vessels reading notes.
Surface Area Lab due tomorrow!

2. Oral cavity Esophagus Salivary glands Liver Stomach Gall bladder
Pancreas J
Small intestine
Large intestine F G
Rectum

4. Describe blood.
Connective tissue
Liquid tissue
Transports SUBSTANCES throughout the body

5. Adult = about 5L

6. 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.

7. Red blood cells White blood cells Platelets
Identify the 3 types of blood cells.

8. Produced in BONE MARROW

9. What are red blood cells also known as?
Erythrocytes

10. Describe the function of red blood cells.
Transport OXYGEN and CARBON DIOXIDE to and from cells
Describe the function of red blood cells.

11. HEMOGLOBIN (protein)

12. Disc-shaped (BICONCAVE)
Describe the shape of red blood cells.
Disc-shaped (BICONCAVE)

14. No nucleus when they mature

15. Most numerous

16. 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

17. Leucocytes
What are white blood cells also known as?

19. Identify and destroy pathogens (disease-causing microorganisms)
Describe the function of white blood cells.

20. ENGULF pathogens
Produce ANTIBODIES

21. Describe the shape of white blood cells.

22. Circular
Contain a nucleus
Largest

23. Fewer than RBC’s

24. Thrombocytes
What are platelets also known as?

25. Involved in BLOOD CLOTTING, and repair and regeneration of connective tissue
Describe the function of platelets.

27. Blood Clotting

28. A. Stick to edge of cut
Circulatory System: Blood Platelets

29. B. FIBRIN is produced (long, sticky string) that sticks to cut vessel

31. C. Web like complex of strands forms to stop bleeding CLOT

32. D. Clot becomes hard & dry (SCAB)
E. Skin cells repaired under scab and scab falls off

33. WBC’s
RBC’s
Platelets
Place the blood cells in correct sequence from largest to smallest.

34. Identify the name of the liquid that transports red blood cells, white blood cells and platelets.
Plasma

37. Transports materials:
Function of plasma:
Transports materials:
Salt, sugar, proteins
Wastes
Enzymes
Blood cells
Hormones

38. Did you know…
Coconut water can be used (in emergencies) as a substitute for blood plasma.

39. An average adult’s body normally contains over 35 billion WBC’s
An average adult’s body normally contains over 35 billion WBC’s. That’s 1 for every RBC’s.

40. One grain of rice = 1 cubic mm
5 million RBC’s
5,000 – 10,000 WBC’s
400,000 platelets

41. Let’s summarize…
Identify the four parts of the blood.
Where are blood cells produced?
Describe the function of plasma.
Describe the function and shape of red blood cells.
What do red blood cells contain?
Describe the function and shape of white blood cells.
Describe the function and shape of platelets.

42. Review: Identify the part of blood being described.
Most numerous blood cell.
Carries enzymes.
Involved in blood clotting.
Carries oxygen.
Largest blood cell.
Made up of 90% water.
Protect the body against disease.
Carries hormones.

44. What is a major difference between red blood cells and white blood cells?
Red blood cells contain hemoglobin, but white blood cells do not.
Red blood cells can move, but white blood cells cannot.
Red blood cells contain nuclei, but white blood cells do not.
Red blood cells engulf foreign bacteria, but white blood cells do not.

45. What component of blood is important in healing wounds on the skin?  
red blood cells  
urea  
platelets  
white blood cells 

46. in lymph nodes in bone marrow at the sinoatrial node in the heart
 Where are red and white blood cells made in the body?  
in lymph nodes  
in bone marrow  
at the sinoatrial node  
in the heart

47. What component of blood plays a role in protection against disease?  
white blood cells  
platelets  
urea  
red blood cells

48. Which blood component is a liquid?   
platelets  
white blood cells  
plasma  
red blood cells

49. What is a pickup function of blood?  
picks up urine from the bladder  
picks up undigested food from the large intestine  
picks up carbon dioxide from the air in the lungs   
picks up carbon dioxide waste from cells.