Quiz
Cardiovascular
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Perguntas do quiz (56)
1which type of artery has the largest lumens?
- Amuscular
- Belastic
2elastic arteries are [blank_start]low resistance[blank_end]. they are made from [blank_start]elastin[blank_end], which is present in all 3 tunics but most in tunica [blank_start]media[blank_end].
- Alow resistance
- Belastin
- Cmedia
3elastic arteries have pressure reservoirs that expand/recoil as blood is ejected from the lungs back to the heart.
- AVerdadeiro
- BFalso
4what is formed from the end of elastic arteries?
- Aarterioles
- Bcapillaries
- Cmuscular arteries
- Dvenules
5muscular arteries are know as "[blank_start]distributing[blank_end]" arteries.
- Adistributing
6which has the thickest tunica media with more smooth muscle but less elastic tissue?
- Amuscular artery
- Belastic artery
- Cpulmonary veins
- Dcapillaries
7larger [blank_start]arterioles[blank_end] have all 3 tunics but smaller lead to [blank_start]capillary[blank_end] beds/single layer of [blank_start]smooth muscle[blank_end] surrounding [blank_start]endothelial[blank_end] lining.
- Aarterioles
- Bcapillary
- Csmooth muscle
- Dendothelial
8a change in diameter of an arteriole leads to...
- Aa change in resistance to blood flow
- Ba change in resting membrane potential
- Cheart failure
- Dthe slowing pace of larger arteries
9capillaries are/have...
- Amacroscopic
- Bthin tunica intima
- Csupply every cell with nutrients
- Dpericytes
10what are the characteristics of continuous capillaries?
- Aform blood brain barrier
- Blocated in the skin/muscles/lungs
- Chave pores for increased permeability
- Din the liver/bone marrow/spleen/adrenal medulla
- Econtain macrophages
11which of the following are characteristics of fenestrated capillaries?
- Aform blood brain barrier
- Bin skin/lungs/muscles
- Cact as active filtration areas with "swiss cheese" holes for permeability
- Dareas of endocrine hormone secretion
- Ehae sluggish blood flow for molecule modification
- Fin the kidneys/intestines
12what are the characteristics of sinusoidal capillaries?
- Ain the skin/lungs/muscles
- Bhave larger lumens
- Chave sluggish blood flow for molecule modification/contain microphages
- Din the liver/bone marrow/adrenal medulla/spleen
- Eform blood brain barrier
- Ffunctional in endocrine hormone secretion
13[blank_start]capillary beds[blank_end] are an interwoven network between [blank_start]arterioles[blank_end] and [blank_start]venules[blank_end]. they are not [blank_start]independent[blank_end] and are known for [blank_start]microcirculation[blank_end].
- Acapillary beds
- Barterioles
- Cvenules
- Dindependent
- Emicrocirculation
14which of the following describes channels that connect arterioles directly to venules?
- Avascular shunt
- Btrue capillaries
15in vascular shunt, the [blank_start]terminal arteriole[blank_end] feeds into [blank_start]metarteriole[blank_end] that is continuous with the [blank_start]thoroughfare channel[blank_end]. this then feeds into the [blank_start]postcapillary venule[blank_end] that drains the bed.
- Aterminal arteriole
- Bmetarteriole
- Cpostcapillary venule
- Dthoroughfare channel
- Emetarteriole
- Fterminal arteriole
- Gthoroughfare channel
- Hpostcapillary venule
- Ithoroughfare channel
- Jpostcapillary venule
- Kterminal arteriole
- Lmetarteriole
- Mpostcapillary venule
- Nterminal arteriole
- Othoroughfare channel
- Pmetarteriole
16which of the following are actual vessels in exchange?
- Atrue capillaries
- Bvascular shunt
17true capillaries branch from the [blank_start]proximal[blank_end] end of the [blank_start]shunt[blank_end] and return to the [blank_start]thoroughfare channel[blank_end] at the [blank_start]distal[blank_end] end.
- Aproximal
- Bshunt
- Cthoroughfare channel
- Ddistal
18precapillary sphincters regulate blood flow. in the [blank_start]open[blank_end] relaxed state, blood runs through [blank_start]true capillaries[blank_end] and participates in tissue cell exchange. in the [blank_start]closed[blank_end] state, blood runs through [blank_start]vascular shunts[blank_end] and bypasses tissue cells.
- Aopen
- Btrue capillaries
- Cclosed
- Dvascular shunts
19which is the order in which veins are formed?
- Acapillary beds, venules, veins
- Bvenules, capillary beds, veins
- Canastosomes, venules, veins
- Dcapillary beds, anastosomes, veins
20postcapillary venules have...
- Alarge layers of cardiac muscle
- Bporosity
- Cincreasing lumen size with increasing vein size
- Da thick tunica externa
21veins are good blood reservoirs, also called capacitance vessels.
- AVerdadeiro
- BFalso
22blood pressure in veins is lower than in arteries, so they have no chance of bursting because of...
- Alarger diameter
- Bvenous valves
- Cvenous sinuses
- Dvenous venules
23this type of anastomose is the interconnection of blood vessels
- Avascular
- Barterial
- Carteriovenous
- Dvenous
24_________ anastomoses provide alternate pathways for continuous blood flow, even if an artery is blocked.
- Aaterial
- Bvenous
- Cvascular
- Darteriovenous
25this type of anastomose shunts in capillaries
- Avascular
- Barterial
- Cvenous
- Darteriovenous
26[blank_start]venous[blank_end] anastomoses are so abundant that occluded veins rarely block blood flow.
- Avenous
27blood flow is...
- Ameasured in L/min
- Bvolume of blood through a vessel
- Cequivalent to cardiac output
- Dthe same in every major organ of the circulatory system
28the pressure gradient of blood pressure is the difference in vascular system that provides the driving force to keep blood moving from low to high pressure areas.
- AVerdadeiro
- BFalso
29what contributes to blood resistance?
- Aviscosity
- Bblood vessel length
- Cblood vessel diameter
- Dblood pressure
- Evasoconstriction
30a disruption of laminar flow in blood vessel diameter is called [blank_start]turbulent flow[blank_end].
- Aturbulent flow
31blood flow (f) is [blank_start]directly[blank_end] proportional to blood pressure gradient (p). f is [blank_start]inversely[blank_end] proportional to resistance (r).
- Adirectly
- Binversely
32systemic blood pressure goes from ________________ pressure.
- Ahigh to low
- Blow to high
33in arterial blood pressure, arteries further from the heart can stretch more.
- AVerdadeiro
- BFalso
34the pressure exerted in the aorta during ventricular contraction is called
- Asystolic pressure
- Bdiastolic pressure
35the pressure of aortic valves closing to prevent backflow into the heart is called
- Asystolic pressure
- Bdiastolic pressure
36the difference between systolic and diastolic pressure is called [blank_start]pulse pressure[blank_end].
- Apulse pressure
37what propels blood to tissues?
- Asystolic pressure
- Bdiastolic pressure
- Cmean arterial pressure
- Dpulse pressure
38map = [blank_start]diastolic[blank_end] pressure + ([blank_start]pulse[blank_end] pressure/3)
- Adiastolic
- Bpulse
39a blood pressure cuff is called a [blank_start]sphygmomanometer[blank_end].
- Asphygmomanometer
40at the beginning of capillary beds, capillary blood pressure is ____mmHg and at the ends about ____mmHg.
- A35, 17
- B17, 35
- C80, 120
- D120, 80
41the change in venous blood pressure is relatively ________.
- Asmall
- Blarge
- Cnonexistent (it's constant)
42when a vein is cut, blood flow is [blank_start]even[blank_end] while when an artery is cut, blood flows out [blank_start]in spurts[blank_end].
- Aeven
- Bin spurts
43which of the following returns blood to the heart against gravity?
- Amuscular pump
- Brespiratory pump
- Csympathetic venoconstriction
- Dcardioacceleratory centers
- Ebaroreceptor reflexes
44organs in the regulation of blood pressure include...
- Abrain
- Bkidneys
- Cheart
- Dblood vessels
45which is not part of short term regulation of blood pressure?
- Aneural
- Bhormonal
- Crenal
46neural regulation of blood pressure includes the [blank_start]cardiovascular center[blank_end], [blank_start]decreased[blank_end] cardiac output and [blank_start]chemoreceptor reflexes[blank_end].
- Acardiovascular center
- Bdecreased
- Cchemoreceptor reflexes
47in neural blood pressure regulation, cardiac centers have [blank_start]inhibitory[blank_end] and [blank_start]acceleratory[blank_end] divisions while [blank_start]vasomotor centers[blank_end] send impulses via sympathetic effects called [blank_start]vasomotor fibers[blank_end].
- Ainhibitory
- Bacceleratory
- Cvasomotor centers
- Dvasomotor fibers
48in neural bp regulation, which is responsible for increasing input to the vasomotor center when bp increases?
- Acardioacceleratory center
- Bvasomotor fibers
- Cvasodilation
- Dbaroreceptor reflexes
49in neural bp regulation, vasodilation increases output from cardioinhibitory center and causes dilation.
- AVerdadeiro
- BFalso
50in neural bp regulation, decreased [blank_start]cardiac output[blank_end] sends impulses to the cardiac center to inhibit [blank_start]sympathetic[blank_end] activity and stimulate [blank_start]parasympathetic[blank_end] activity.
- Acardiac output
- Bsympathetic
- Cparasympathetic
51where are your chemoreceptor reflexes located?
- Aneck arteries
- Baortic arch
- Cinternal thoracic artery
- Daxillary arteries
52in neural bp regulation, chemoreceptor reflexes [blank_start]increase[blank_end] bp to signal [blank_start]cardioacceleratory[blank_end] centers to increase [blank_start]cardiac output[blank_end]. it also signals vasomotor centers to increase [blank_start]vasoconstriction[blank_end].
- Aincrease
- Bcardioacceleratory
- Ccardiac output
- Dvasoconstriction
53in short term blood pressure regulation, the hormonal segment changes based on...
- Aperipheral resistance
- Bblood volume
- Cresting membrane potential
- Dcontractility
54which of the following is responsible for long term blood pressure regulation?
- Arenal
- Bhormonal
- Cneural
- Dhigher brain centers
55renal bp regulation works directly by the [blank_start]renal[blank_end] mechanism and indirectly by the [blank_start]renin-angiotensin-aldosterone[blank_end] mechanism.
- Arenal
- Brenin-angiotensin-aldosterone
- Crenin-angiotensin-aldosterone
- Drenal
56renal bp regulation: [blank_start]decreased[blank_end] arterial blood pressure causes [blank_start]renin[blank_end] release from kidneys. it enters the blood to catalyze [blank_start]angiotensinogen[blank_end] from liver to [blank_start]angiotensin I[blank_end]. it is then converted to [blank_start]angiotensin II[blank_end]. this stimulates [blank_start]aldosterone[blank_end] secretion which releases [blank_start]ADH[blank_end] from posterior pituitary to trigger the hypothalamic thirst center to drink more water.
- Adecreased
- Brenin
- Cangiotensinogen
- Dangiotensin I
- Eangiotensin II
- Faldosterone
- GADH
Informações
- Descrição
- Nursing Quiz sobre Cardiovascular, criado por tori szempruch em 27-02-2018.
- Autor
- tori szempruch
- Idioma
- English
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