Homework Answers
Answer: b. valves to prevent backflow of blood
Explanation- The pressure of the blood is low in veins and valves maintain unidirectional flow of blood. Veins carry deoxygenated blood from the peripheral tissue to the heart.
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Which of the following is an anatomical feature unique to
veins?
Which of the following is...
Complete each sentence by dragging the proper label into the appropriate position. The ____ is the...
Complete each sentence by dragging the proper label into the appropriate position. The ____ is the first vessel blood enters upon exiting the heart. The ____ expand and recoil with every heart beat due to a histologically dominant network of elastic tissue in the tunica media. Just prior to entering capillary beds, ____ have become extremely thin and present only a few layers of smooth muscle. The site of gaseous exchange, or ____, are characterized by extremely thin walls with...
35-42 vessels is found in which of the following layers? A. tunica adventitia (B,tunica media C....
35-42
vessels is found in which of the following layers? A. tunica adventitia (B,tunica media C. tunica intima D. all of the above 35.The most important mechanism of exchange between blood and tissue fluid is: A. transcytosis B. diffusion C. filtration D. active transport 36. Blood vessels that connect two capillary networks are called: A. portal systems B. anastomoses C. arterial systems D. veins 37. Vasodilation may be brought about by A. Histamine C. high blood carbon dioxide D. angiotensin...
questions number 1,2,3,4,5,6,7,8,9,10,11 Chapter 22: The Cardiovascular System: Vessels and Circulation Name: Date: Section: POST-LABORATORY WORKSHEET...
questions number 1,2,3,4,5,6,7,8,9,10,11
Chapter 22: The Cardiovascular System: Vessels and Circulation Name: Date: Section: POST-LABORATORY WORKSHEET The 1 corresponds to the Learning Objectivels) listed in the chapter opener outline, Do You Know the Basics? Exercise 22.1: Blood Vessel Wall Structure 1. The tunic in blood vessels that is composed of simple squamous epithelium for endothelium) and a subendothelial layer composed of areolar com tissue is known as the tunica _linterna/externa). O 2 Exercise 22.2: Elastic Artery -The Aorta 2. Which...
System 211 Chapter 11 The Key Choices A. ○Tunica C.。Turica externa 'unica media 1. Singhe thin...
System 211 Chapter 11 The Key Choices A. ○Tunica C.。Turica externa 'unica media 1. Singhe thin layer of endothelium 2 Bulky middle coat, containing smooth muscle and elastin sinooth surface to decrease resistance to blood flow 5. Provides a 4. The only tunic of capillaries 5. Also called the adventitia 6. The only tunic 7. Supporting, protective coat that plays an active role in blood pressure regulation Figure 11-6 A. B. C. Gross Anatomy of Blood Vessels 17. Figures 11-7...
BLOOD WESSELS - CIRCULAT1ON
BLOOD WESSELS - CIRCULAT1ONMatchingMatch the term on be Left with the proper selection on the right.27. ArteriesA. Smooth muscle cells that guard entrance to capillaries28. Veins.B. carry blood to the heart29. CapillariesC. Carry blood into venules30. Tunica externaD. Carry blood away from the heart31. Precapillary sphinctersF. Largest artery32. Superior vena cavaG. Outermost layer of arteries and veinsWiuktiplo ChoiceCirde the cortecf urtwer.34 . The aorta carries blood out of the:A. Right atriumB. Left atriumC. Right ventricleD. Left ventricle F None of...
Please help, there's more questions than my limit. _____________ refers to a sudden, dramatic drop in...
Please help, there's more questions than my limit. _____________ refers to a sudden, dramatic drop in BP upon standing or sitting up straight. Primary hypertension d. Anaphylaxis Secondary hypertension e. Phlebitis Orthostatic hypotension Most of the smooth muscle in arteries is located in the ___________. tunica intima b. adventitia c. tunica externa d. lumen e. tunica media Decrease in the size of the lumen of a blood vessel by contraction of smooth muscle is called ________. Vasodilation ...
Which one of the following statements is true? A. All veins in the body contain partly...
Which one of the following statements is true? A. All veins in the body contain partly deoxygenated blood. B. Atrial systole and ventricular systole occur simultaneously. C. All types of blood vessels contain at least some smooth muscle in their walls. D. During ventricular diastole, blood pressure in the aorta is lower than blood pressure in the left ventricle. E. None of the above statements is true.
Which one of the following statements is true? A. All veins in the body contain partly...
Which one of the following statements is true? A. All veins in the body contain partly deoxygenated blood. OB. Atrial systole and ventricular systole occur simultaneously. OC. All types of blood vessels contain at least some smooth muscle in their walls. OD. During ventricular diastole, blood pressure in the aorta is lower than blood pressure in the left ventricle. E. None of the above statements is true.
11. Which of the following about human red blood cells is false:
11. Which of the following about human red blood cells is false: a. They are generated by stem cells in bone marrow.b. They lack nuclei when mature.c. They tend to rupture as they get older and less flexible.d. Erythropoietin controls their production.C. Their biconcave shape yields a small surface area.12. A child falls off his bicycle and skins his knee. All the following processes are involved in the formation of the blood clot that seals the wound excepta. formation of a...
1. Which of the following is NOT a component of the respiratory membrane? a. alveolar basement...
1. Which of the following is NOT a component of the respiratory membrane? a. alveolar basement membrane b. alveolar wall epithelium c. interstitial fluid d. capillary endothelium 2. Which of the following is NOT a correct match of normal (quiet) breathing phase and normal muscle movements. a. inhalation: diaphragm contracts b. exhalation: diaphragm relaxes c. exhalation: external intercostals relax d. inhalation: sternocleidomastoid contracts 3. In terms of Boyle's gas law, which of the following is a correctly matched explanation for...
Complete each sentence by dragging the proper label into the appropriate position. The ____ is the first vessel blood enters upon exiting the heart. The ____ expand and recoil with every heart beat due to a histologically dominant network of elastic tissue in the tunica media. Just prior to entering capillary beds, ____ have become extremely thin and present only a few layers of smooth muscle. The site of gaseous exchange, or ____, are characterized by extremely thin walls with...
35-42
vessels is found in which of the following layers? A. tunica adventitia (B,tunica media C. tunica intima D. all of the above 35.The most important mechanism of exchange between blood and tissue fluid is: A. transcytosis B. diffusion C. filtration D. active transport 36. Blood vessels that connect two capillary networks are called: A. portal systems B. anastomoses C. arterial systems D. veins 37. Vasodilation may be brought about by A. Histamine C. high blood carbon dioxide D. angiotensin...
questions number 1,2,3,4,5,6,7,8,9,10,11
Chapter 22: The Cardiovascular System: Vessels and Circulation Name: Date: Section: POST-LABORATORY WORKSHEET The 1 corresponds to the Learning Objectivels) listed in the chapter opener outline, Do You Know the Basics? Exercise 22.1: Blood Vessel Wall Structure 1. The tunic in blood vessels that is composed of simple squamous epithelium for endothelium) and a subendothelial layer composed of areolar com tissue is known as the tunica _linterna/externa). O 2 Exercise 22.2: Elastic Artery -The Aorta 2. Which...
System 211 Chapter 11 The Key Choices A. ○Tunica C.。Turica externa 'unica media 1. Singhe thin layer of endothelium 2 Bulky middle coat, containing smooth muscle and elastin sinooth surface to decrease resistance to blood flow 5. Provides a 4. The only tunic of capillaries 5. Also called the adventitia 6. The only tunic 7. Supporting, protective coat that plays an active role in blood pressure regulation Figure 11-6 A. B. C. Gross Anatomy of Blood Vessels 17. Figures 11-7...
BLOOD WESSELS - CIRCULAT1ONMatchingMatch the term on be Left with the proper selection on the right.27. ArteriesA. Smooth muscle cells that guard entrance to capillaries28. Veins.B. carry blood to the heart29. CapillariesC. Carry blood into venules30. Tunica externaD. Carry blood away from the heart31. Precapillary sphinctersF. Largest artery32. Superior vena cavaG. Outermost layer of arteries and veinsWiuktiplo ChoiceCirde the cortecf urtwer.34 . The aorta carries blood out of the:A. Right atriumB. Left atriumC. Right ventricleD. Left ventricle F None of...
Which one of the following statements is true? A. All veins in the body contain partly deoxygenated blood. B. Atrial systole and ventricular systole occur simultaneously. C. All types of blood vessels contain at least some smooth muscle in their walls. D. During ventricular diastole, blood pressure in the aorta is lower than blood pressure in the left ventricle. E. None of the above statements is true.
Which one of the following statements is true? A. All veins in the body contain partly deoxygenated blood. OB. Atrial systole and ventricular systole occur simultaneously. OC. All types of blood vessels contain at least some smooth muscle in their walls. OD. During ventricular diastole, blood pressure in the aorta is lower than blood pressure in the left ventricle. E. None of the above statements is true.
11. Which of the following about human red blood cells is false: a. They are generated by stem cells in bone marrow.b. They lack nuclei when mature.c. They tend to rupture as they get older and less flexible.d. Erythropoietin controls their production.C. Their biconcave shape yields a small surface area.12. A child falls off his bicycle and skins his knee. All the following processes are involved in the formation of the blood clot that seals the wound excepta. formation of a...
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