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Donai Exam CHAP 7 > Chap 7 > Flashcards

Chap 7 Flashcards

1
Q

divide from large arteries that deliver blood to capillaries

A

arteriole

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2
Q

vessel carrying blood from the heart to body parts

A

artery

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3
Q

both vertebral arteries merge to form this artery; courses upward along the pontine midline, and eventually joins Circle of Willis; have branches that supply blood to spinal cord, medulla, pons, midbrain, and cerebellum

A

basilar artery

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4
Q

terminal branches of arteries that supply blood to the brain

A

capillary

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5
Q

arterial circle at the base of the brain that forms a major anastomotic point by connecting the cartoid system with vertebrobasilar system

A

circle of willis

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6
Q

system formed by the internal carotid artery that supplies blood to the brain by dividing into the middle and anterior cerebral arteries

A

carotid system

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7
Q

vessel that transports circulated blood from the body to the heart

A

vein

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8
Q

smaller extensions of the venous system deep in the cortical substance; receive deoxygenated blood from the capillaries and transport it to larger veins on the cortical surface that, in turn, empty blood into the sinuses, which transport in back to the heart for reoxygenation

A

venules

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9
Q

vascular network serves the brainstem and occipital lobe

A

vertebrobasilar system

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10
Q

supplies blood to the medial surface of the frontal lobe and part of the parietal lobe, in addition to the anterior four-fifths of the corpus callosum

A

anterior cerebral artery

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11
Q

in the Circle of Willis; anterior cerebral arteries rostrally interconnected by this artery

A

anterior communicating artery

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12
Q

provision of an alternate blood flow via an anastomosis to a brain region that has lost its blood supply

A

collateral circulation

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13
Q

reduced supply or unavailability of blood for tissue oxygenation owing to hemorrhagic stroke, stenosis, or thrombosis; it affects brain functions by causing cellular death

A

ischemia

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14
Q

large intracranial vessel supplying blood to the entire lateral surface of the brain and parts of the basal ganglia structures

A

middle cerebral artery

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15
Q

one of the 3 cortical arteries originating from the circle of willis and supplying blood to the basal surface of the occipital and temporal lobes and the midsagittal surface of the occipital lobe

A

posterior cerebral artery

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16
Q

connect the internal carotid arteries with the basilar artery

A

posterior communicating artery

17
Q

localized, balloon-like dilation of a blood vessel caused by a weakened arterial wall or congenital defect

A

aneurysm

18
Q

condition of oxygen deficiency in brain tissue

A

anoxia

19
Q

narrowing of arterial lumen owing to accumulation of lipids, fatty substances and cholesterol along intimal walls of blood vessels

A

arteriosclerosis/ atherosclerosis

20
Q

interruption of the blood supply to brain tissue resulting in neurologic symptoms

A

cerebrovascular accident (CVA or stroke)

21
Q

blocking of a smaller artery by a sclerotic tissue (embolus), which is detached from atherosclerotic plaque

A

embolism

22
Q

discharging of blood from a ruptured artery

A

hemorrhage

23
Q

high blood pressure; critical neurological condition; when heart compensates for the reduced blood flow by pumping blood with greater force

A

hypertension

24
Q

formation of a localized clot that blocks the lumen of a blood vessel

A

thrombosis

25
Q

temporary cerebral dysfunction caused by transient disruption of the blood supply to the brain; marked by transient neurological symptoms that clear within 30-60 min

A

transient ischemia attack (TIA)

26
Q

drugs that are used to prevent the clotting of blood (Coumadin)

A

anticoagulant

27
Q

structural property of the CNS vessels formed by the endothelial cells that restricts (impermeability) the passage of most substances (many harmful) to the brain

A

blood-brain barrier

28
Q

chemical agents that dissolve blood clots and restore circulation; includes tissue plasminogen activator (t-PA)

A

thrombolytic agent

29
Q

drug used to restore blood circulation in acute cases of thromboembolic stroke by dissolving the atherosclerotic clot

A

tissue plasminogenactivanting agents (t-Pas)

30
Q

increased diameter of a blood vessel, resulting in greater blood flow

A

vasodilator

31
Q

?

A

vessel permeability

Donai Exam CHAP 7 (1 decks)

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