BIO210Y5 Chapter Notes - Chapter 20: Pulmonary Circulation, Pulmonary Vein, Pulmonary Artery

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5 Aug 2018

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Carries blood from and to gas exchange areas in lung. The connection between the heart (pumps) and the lungs. Blood leaving the circuit must complete a systemic (body) circuit before re-entering pulmonary circuit. The blood that enters the lungs and get oxygen, when it returns to the (cid:271)lood, it does(cid:374)"t retur(cid:374) to the lu(cid:374)gs (it already has oxygen) The oxygenated blood is sent through an entire circuit before it re-enters the lungs to become re- oxygenated. Pulmonary arteries are usually lower in oxygen; they carry blood from the heart to the lung to get more oxygen. Pulmonary veins carry oxygenated blood from the lungs to the heart. Arteries carry blood away from the heart. Veins carry blood to the heart and are usually. Carries blood from and to areas of the body (other than the lung) Carries blood from the heart to other parts of the blood.

Related Questions

1. Which of the following is the correct sequence of bloodflow?

a. heart --> atery --> arteriole --> capillary -->vein --> venule --> heart

b. heart --> vein --> venule --> capillary -->arteriole --> artery --> heart

c. heart --> artery --> arteriole --> capillary -->venule --> vein --> heart

d. heart --> artery --> venule --> capillary -->arteriole --> vein --> heart

e. heart--> artery --> capillary --> arteriole -->venule --> vein --> heart

2. What are the functions of the elastic fibers that are foundin the walls of ateries? (there may be more than one answer)

Select one or more:

a. they allow the artery to stretch and then recoil back to itsoriginal shape as blood is forcegully pumped from the heart intothe arteries

b. they allow arteries to lengthen as the volume of blood in thearteries increase

c. they help maintain a steady blood pressure during thedifferent phases of heart contraction

d. they smooth out the walls of the arteries to preventturbulent blood flow

3. Which of the following are functions of the lymphatic system?(there may be more than one answer)

Select one or more:

a. help fight infections and cancer

b. allows excess interstitial fluid (fluid found between thecells in your tissues) to get dumped back into your blood

c. brings large molecules from fat digestion into thebloodstream so that they can be processed and stored

d. all of the above are functions of the lymphatic system

4. Which of the following blood vessels bring newly oxygenatedblood from the blood vessels in the lungs back to the heart so thatthe heart can pump it to the rest of the body?

Select one:

a. aorta

b. inferior vena cava

c. pulmonary vein

d. pulmonary artery

5. Which of the following mechanisms help blood fight gravity sothat, for instance, it can return from blood vessels in your feetback into your heart? (there may be more than one answer)

Select one or more:

a. breathing allows the pressure in your chest to decrease andallow blood to flow up towards your heart

b. as you walk, the skeletal muscles in your legs contract andsqueeze the veins; since veins have valves, blood flows up anddoesn't backflow back down

c. the force of blood flowing out of the heart and into thearteries pushes all of the blood along, causing blood to return tothe heart

d. precapillary sphincters open to allow blood to flow backtowards the heart

6. The tricuspid and bicuspid/mitral valves prevent backflow ofblood from the atria into the ventricles.

Select one:

True

False

7. The following sequence represents the correct order of bloodflow through the heart:

inferior and superior vena cava --> right atrium --> rightventricle --> pulmonary artery --> lungs --> pulmonaryvein --> left atrium --> left ventricle --> aorta

Select one:

True

False

8. Capillaries are as wide as one red blood cell.

Select one:

True

False

9. The purpose of the coronary arteries is to bring oxygenatedblood to the walls of the heart so that the muscles in the heartwalls can contract.

Select one:

True

False

10. Vasodilation refers to the narrowing of blood vessels.

Select one:

True

False

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21. Which of the followingis a way to reduce the risk of varicose veins?

	wear tight pants
	remain inactive
	standing for extended periods
	wear special hosiery

22. What are the way(s)that vision in the older adult can be improved?

	Magnifying glass
	Decrease light
	Increase glare
	Decrease contrast

23. An exercise programfor the healthy older adult should follow which of thefollowing?

	Exercises should be performed once a week
	Exercises must be performed daily for a minimum of 50minutes
	Exercise programs must be vigorous, extended and frequent
	Exercise programs should only focus on range of motion andstretching

24. What does perfusion ofthe lungs involve?

	absorption of oxygen from the blood into the lungs
	movement of blood through the pulmonary vessels
	absorption of carbon dioxide from the blood into the lungs
	movement of blood into the alveolar sacs

25. Which is true inregards to chronological aging?

	it can't be altered by the other types of aging
	the other types of aging can effectively increase or decreaseit

26. Aging has theleast effect on which respiratory function?

	Perfusion
	Ventilation
	Diffusion

27. What is angina? It ispain associated with:

	decrease in the electrical output from the heart
	inflammation of the heart muscles and veins
	decrease in blood supply to coronary arteries
	increase in pressure against the heart valves

28. "Remembering specificfacts that a person tried to learn so they could be remembered" isthe definition for which type of memory?

	episodic
	explicit
	short-term
	procedural

29. What is socialaging?

	loss of interest in interaction with other
	changes one has in the interaction with others
	increase in interest in interacting with others

30. What ishomeostasis?

	term used to imply normal aging
	having proper and fairly stable conditions
	having consistent rest/sleep
	condition where blood is not flowing freely

21. What is social aging?

	loss of interest in interaction with other
	changes one has in the interaction with others
	increase in interest in interacting with others

22. What are the way(s) that vision in the olderadult can be improved?

	Magnifying glass
	Decrease light
	Increase glare
	Decrease contrast

23. An exercise program for the healthy older adultshould follow which of the following?

	Exercises should be performed once a week
	Exercises must be performed daily for a minimum of 50minutes
	Exercise programs must be vigorous, extended and frequent
	Exercise programs should only focus on range of motion andstretching

24. "Remembering specific facts that a person triedto learn so they could be remembered" is the definition for whichtype of memory?

	episodic
	explicit
	short-term
	procedural

25. Aging has the least effect onwhich respiratory function?

	Perfusion
	Ventilation
	Diffusion

26. What is homeostasis?

	term used to imply normal aging
	having proper and fairly stable conditions
	having consistent rest/sleep
	condition where blood is not flowing freely

27. Which of the following is a way to reduce therisk of varicose veins?

	wear tight pants
	remain inactive
	standing for extended periods
	wear special hosiery

28. Which is true in regards to chronologicalaging?

	it can't be altered by the other types of aging
	the other types of aging can effectively increase or decreaseit

29. What is angina? It is pain associated with:

	decrease in the electrical output from the heart
	inflammation of the heart muscles and veins
	decrease in blood supply to coronary arteries
	increase in pressure against the heart valves

30. What does perfusion of the lungs involve?

	absorption of oxygen from the blood into the lungs
	movement of blood through the pulmonary vessels
	absorption of carbon dioxide from the blood into the lungs
	movement of blood into the alveolar sacs

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BIO210Y5 Chapter Notes - Chapter 20: Pulmonary Circulation, Pulmonary Vein, Pulmonary Artery

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