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A&P 2 > ch 20 quiz > Flashcards

ch 20 quiz Flashcards

1
Q

which substances leave the blood by diffusing through the plasma membrane of endothelial cells

A

carbon dioxide
steroid hormones
oxygen

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2
Q

choose the accurate statements regarding the effects of edema

A
  • cerebral edema can produce headaches, nausea, and sometimes delirium, seizures, and coma
  • as the tissues become congested with fluid, oxygen delivery, and waste removal are impaired and the tissues may begin to die
  • pulmonary edema presents a threat of suffocation as fluid replaces air in the lungs
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3
Q

in what ways does the pulmonary circuit differ from the systemic circuit

A
  • less fluid gets “left behind” in the lungs
  • pulmonary arteries carry oxygen-rich blood and pulmonary veins carry oxygen-rich blood
  • pulmonary arteries have thinner, less elastic walls
  • pulmonary arteries contract in response to local hypoxia
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4
Q

which of these arteries branch directly off the aortic arch

right subclavian
brachiocephalic trunk
left common carotid
left subclavian

A

brachiocephalic trunk
left common carotid artery
left subclavian artery

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5
Q

which of the following occur during a period of exercise

A
  • the sympathetic nervous system can selectively reduce blood flow to the kidneys and digestive tract
  • the sympathetic nervous system can increase perfusion of the skeletal muscles
  • metabolite accumulation in a tissue can stimulate local vasodilation
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6
Q

arises from aorta

A

brachiocephalic artery
left common carotid artery
left subclavian artery

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7
Q

arises from other vessels

A
  • internal iliac
  • left axillary
  • esophageal
  • pancreatic
    *gonadal
  • superior mesenteric
  • renal
  • sigmoid
  • jejunal
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8
Q

empties into superior/inferior vena cava

A
  • axial
  • azygos vein
  • hepatic
  • gastric
  • renal
  • lumbar veins
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9
Q

empties into other vessel

A

left brachiocephalic.

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10
Q

veins

A
  • relatively larger lumen
  • sites used for blood donation
  • contain valves
  • convergence
  • relatively larger diameter
  • superficial location
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11
Q

arteries

A
  • divergence
  • thicker layers of smooth muscle
  • profuse elastic fibers in the tunica media
  • relatively thicker walls
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12
Q
A
  1. external iliac artery
  2. femoral artery
  3. popliteal artery
  4. anterior tibial artery
  5. dorsal pedal artery
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13
Q

trace a drop of blood from the spleen back to the heart

A
  1. splenic vein
  2. hepatic portal vein
  3. liver
  4. hepatic vein
  5. inferior vena cava
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14
Q

place the following vessels in the order through which blood would pass
beginning with blood entering the systemic circuit after exiting the heart

A
  1. aorta
  2. common iliac artery
  3. external iliac artery
  4. femoral artery
  5. popliteal artery
  6. popliteal vein
  7. femoral vein
  8. external iliac vein
  9. common iliac vein
  10. inferior vena cava
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15
Q

trace a drop pf blood from the elbow back to the heart

A
  1. brachial vein
  2. axillary vein
  3. subclavian vein
  4. brachiocephalic vein
  5. superior vena cava
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16
Q

what is the best wat to estimate the MAP

A

take the diastolic pressure and add 1/3 of the pulse pressure

17
Q

what is (are) the physiological purposes of vasoreflexes

A

to cause a generalized raising or lowering of blood pressure throughout the body

18
Q

diastolic pressure is the minimum arterial blood pressure occuring during which of the following

A

ventricular relaxation

19
Q

fill in the blanks

  1. capillary beds have precapillary ____ at the junction of capillaries and the metarteriole
A

sphincters

20
Q

fill in the blanks

  1. constriction of these spincters ____ the blood flow through their respective capillaries
A

reduces

21
Q

fill in the blanks

  1. when this occurs blood is ____ to tissue or organs elsewhere
A

diverted

22
Q

fill in the blanks

when the sphincters are open blood will ____ the capillary bed

A

fill

23
Q

where are arterial anastomoses, in which 2 arteries merge, found?

A

in coronary circulation

24
Q

septic shock results from exposure to an antigen to which a person is allergic such as venom

A

false

25
Q
A

A&P 2 (55 decks)

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