Quiz
Heart
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Perguntas do quiz (82)
1which side of the heart is blue/deoxygenated?
- Aright
- Bleft
2the [blank_start]left[blank_end] side of the heart is red/oxygenated.
- Aleft
3the [blank_start]atrias[blank_end] receive blood and the [blank_start]ventricles[blank_end] distribute blood.
- Aatrias
- Bventricles
4the apex is at the top of the heart and leans toward the right shoulder.
- AVerdadeiro
- BFalso
5_______ is the overall double-walled sac surrounding the heart.
- Apericardium
- Bepicardium
- Cendocardium
- Dmyocardium
6what protects, anchors and prevents overfilling of the heart?
- Asuperficial fibrous pericardium
- Bparietal layer
- Cinteratrial septum
- Dmyocardium
7the deep two-layered serous pericardium has a [blank_start]parietal[blank_end] and [blank_start]visceral[blank_end] layer.
- Aparietal
- Bvisceral
8the pericardial cavity between the parietal and visceral layers of the serous pericardium reduces friction.
- AVerdadeiro
- BFalso
9in pericarditis...
- Athe pericardial cavity is inflamed
- Bmembrane potential increases
- Cfriction increases
10the visceral layer of the pericardium is called the...
- Aepicardium
- Bendocardium
- Cmyocardium
11this layer has circular bundles of contractile cardiac muscle, tethered by crisscrossing layer of connective tissue
- Amyocardium
- Bepicardium
- Cendocardium
12________ is the innermost layer, continuous with endothelial lining of blood vessels and lines the chambers.
- Aepicardium
- Bmyocardium
- Cendocardium
13the [blank_start]atria[blank_end] are superior and the [blank_start]ventricles[blank_end] are inferior.
- Aatria
- Bventricles
14the anterior interventricular sulcus is also know as the atrioventricular groove.
- AVerdadeiro
- BFalso
15the atria receive blood.
- AVerdadeiro
- BFalso
16the right atrium receives [blank_start]deoxygenated blood from body[blank_end] and the left atrium receives [blank_start]oxygenated blood from lungs[blank_end].
- Adeoxygenated blood from body
- Boxygenated blood from lungs
17which of the following empties into the right atrium?
- Asuperior vena cava
- Binferior vena cava
- Ccoronary sinus
- Dpulmonary vein
18the posterior walls of the atria are [blank_start]smooth[blank_end] while the anterior walls are [blank_start]ridged[blank_end].
- Asmooth
- Bridged
19which atrium receives oxygenated blood from the lungs?
- Aleft
- Bright
20the ventricles have...
- Atraveculae carneae
- Bpapillary muscles
- Ccrista terminalis
- Dinterventricular sulcus
21the right ventricle pumps blood into the
- Aaorta
- Bpulmonary trunk
- Cright pulmonary artery
- Dcoronary sulcus
22the left ventricle pumps into the aorta.
- AVerdadeiro
- BFalso
23the functions of valves is to [blank_start]prevent back flow[blank_end].
- Aprevent back flow
24the valves between the atria and ventricles are called
- Aatrioventricular
- Bsemilunar
25in the 2 atrioventricular valves, [blank_start]tricuspid[blank_end] is right and [blank_start]bicuspid[blank_end] is left.
- Atricuspid
- Bbicuspid
26the valves that are between major veins and the atria are called
- Asemilunar
- Batrioventricular
27the pulmonary semilunar valve is in the [blank_start]right ventricle[blank_end] and associates with the pulmonary trunk. the aortic semilunar valve is in the [blank_start]left ventricle[blank_end] and associates with the aorta.
- Aright ventricle
- Bleft ventricle
28what is the blood flow of the right side?
- Afirst
- Bfirst
- Csecond
- Dthird
- Efourth
- Ffifth
- Gsixth
- Hseventh
- Iseventh
29what is the blood flow through the left side?
- Afirst
- Bfirst
- Csecond
- Dthird
- Efourth
- Ffifth
- Gsixth
30all veins carry deoxygenated blood except the _______ veins.
- Apulmonary
- Bcoratid
- Cinterventricular
- Dcoronary
31pulmonary arteries carry _________ blood.
- Aoxygenated
- Bdyoxygenated
32[blank_start]pulmonary[blank_end] circuit is short and low pressure. it is on the [blank_start]right[blank_end] side of the heart.
- Apulmonary
- Bright
33[blank_start]systemic[blank_end] circuit is long and higher friction. it is on the [blank_start]left[blank_end] side of the heart.
- Asystemic
- Bleft
34arteries arise from the base of the...
- Aaorta
- Bleft pulmonary artery
- Cbase
- Dapex
35left arteries run toward the right side of the heart.
- AVerdadeiro
- BFalso
36the left artery divides into which of the following?
- Aposterior interventricular artery
- Bright marginal artery
- Ccircumflex artery
- Danterior interventricular artery
37the right artery divides into which of the following?
- Aright marginal artery
- Bposterior interventricular artery
- Canterior interventricular artery
- Dcircumflex artery
38________ collect blood from capillary beds of myocardium.
- Aveins
- Barteries
- Cendothelial cells
- Dsinuses
39the [blank_start]coronary sinus[blank_end] dumps deoxygenated blood into the right atrium.
- Acoronary sinus
40cardiac muscle fibers are anucleate.
- AVerdadeiro
- BFalso
41the desmosomes that allow cardiac muscle fibers to contract and still act as a unit are called [blank_start]intercalated disks[blank_end].
- Aintercalated disks
42in cardiac muscle fibers, gap junctions...
- Aallow the heart to work as a unit
- Ballow exchange of ions between cells
- Care considered desmosomes
43cardiac muscle fibers contain many large [blank_start]mitochondria[blank_end].
- Amitochondria
44cardiac muscle fibers are made up of sarcolemma.
- AVerdadeiro
- BFalso
45what precedes a cardiac muscle fiber contraction?
- Anegative action potential
- Bdepolarization action potential
- Cpolarization action potential
- Ddegrading action potential
46some cardiac muscles are [blank_start]self excitable[blank_end]. they are called [blank_start]contractile[blank_end] and [blank_start]pacemaker[blank_end] cells.
- Aself excitable
- Bcontractile
- Cpacemaker
47cardiomyocytes acting as a unit is called functional syncytium.
- AVerdadeiro
- BFalso
48in cardiac muscle, special depolarization opens calcium channels in plasma membrane for the start of contraction, which triggers the release of more calcium into the __________ to finish the contraction.
- Areticulum
- Bmembrane potential
- Cepicardium
- Dcalcium sensitive channels
49[blank_start]tetanic[blank_end] contractions cannot occur in cardiac muscle, because they have a large [blank_start]refractory period[blank_end].
- Atetanic
- Brefractory period
50the heart relies on oxygen to function but also uses...
- Aglucose
- Bfatty acids
- Ccarbohydrates
- Dproteins
51the heart depolarizes/contracts with the help of the nervous system.
- AVerdadeiro
- BFalso
52what of the heart can be altered by the autonomic nervous system?
- Arhythm
- Bresting membrane potential
- Ccontraction
- Dpolarization
53what is the function of noncontractile cardiac cells?
- Ainitiates heart impulses so it contracts sequentially
- Bmaintain stable resting membrane potential
- Cinitiates actions potentials throughout heart
- Dincreases force/rate of beat
54action potentials are unstimulated [blank_start]contractile[blank_end] cells of the heart that maintain a stable [blank_start]resting membrane potential[blank_end].
- Acontractile
- Bresting membrane potential
55action potential steps: 1. [blank_start]pacemaker[blank_end] potential = [blank_start]potassium[blank_end] channels closed but slow [blank_start]sodium[blank_end] channels open for a [blank_start]positive[blank_end] interior membrane 2. [blank_start]depolarization[blank_end] = [blank_start]calcium[blank_end] channels open (huge amounts released) and causes rising phase of action potential in pacemaker 3. [blank_start]repolarization[blank_end] = [blank_start]calcium[blank_end] channels inactivate, [blank_start]potassium[blank_end] channels open for efflux from cell (becomes negative) and then close.
- Apacemaker
- Bpotassium
- Csodium
- Dpositive
- Edepolarization
- Fcalcium
- Grepolarization
- Hcalcium
- Ipotassium
56pacemaker cells are found in sinoatrial and atrioventricular nodes.
- AVerdadeiro
- BFalso
57which side of the heart is larger?
- Aleft
- Bright
58[blank_start]sympathetic[blank_end] nervous system increases rate/force of beat. [blank_start]parasympathetic[blank_end] nervous system slows it.
- Asympathetic
- Bparasympathetic
59what send signals through the sympathetic trunk to increase rate/force and stimulates SA/AV nodes?
- Acardioacceleratory center
- Bcardioinhibitory center
- Csubendocardial conduction network
- Delectrocardiograph
60the cardioinhibitory center...
- Aworks with parasympathetic signals
- Bsignals transmitted through the vestibulocochlear nerve
- Cdecreases heart rate
- Dinhibits SA/AV nodes
61an ecg/ekg measures each single action potential generated by nodal/contractile cells at a given time.
- AVerdadeiro
- BFalso
62an ecg is calculated by [blank_start]voltage differences[blank_end].
- Avoltage differences
63in an ecg, ___________ is a depolarization of of SA nodes/atria.
- AP wave
- BS wave
- CS-T complex
- DQRS complex
64in an ecg, the [blank_start]QRS complex[blank_end] is responsible for ventricular depolarization and atrial repolarization.
- AQRS complex
65in an ecg, __________ starts ventricular repolarization.
- AP wave
- BS wave
- CT wave
- DQ wave
66the _____________ is the start of atrial excitation to the start of ventricular excitation.
- AQRS complex
- BS-T segment
- CP-R interval
- DQ-T interval
67when does the entire ventricular myocardium depolarize?
- AS-T segment
- BQRS complex
- CQ-T invterval
- DP wave
68the [blank_start]Q-T[blank_end] interval is the start of ventricular depolarization through ventricular repolarization.
- AQ-T
69[blank_start]systole[blank_end] is a period of contraction. [blank_start]diastole[blank_end] is a period of relaxation.
- Asystole
- Bdiastole
- Cdiastole
- Dsystole
70one complete heartbeat lasts _______ seconds with _______ seconds being total relaxation.
- A.8
- B.4
- C.9
- D.6
71the left atrium and ventricle systole/diastole first followed by the right atrium and ventricle.
- AVerdadeiro
- BFalso
72the "[blank_start]lub[blank_end]" is the AV valves closing/start of ventricular systole. the "[blank_start]dub[blank_end]" is SL valves closing/start of ventricular relaxation.
- Alub
- Bdub
73cardiac output =
- Aheart rate x stroke volume
- Bsystole x diastole
- Cstroke volume x systolic volume
- Dvenous pressure x stroke volume
74what is the normal stroke volume?
- A70mL/beat
- B120mL/beat
- C50mL/beat
- D12OmL/beat
75one thing that affects stroke volume is [blank_start]preload[blank_end], which is the [blank_start]degree of stretch[blank_end] of heart muscle.
- Apreload
- Bdegree of stretch
76another thing that affects stroke volume is [blank_start]contractility[blank_end], which is the [blank_start]strength of a contraction[blank_end]. it rises with more [blank_start]calcium[blank_end] ions.
- Acontractility
- Bstrength of a contraction
- Ccalcium
77affecting stroke volume, [blank_start]afterload[blank_end] is the [blank_start]pressure ventricles[blank_end] must overcome to [blank_start]eject blood[blank_end]. it is increased by [blank_start]hypertension[blank_end] (reduces ability to eject blood).
- Aafterload
- Bpressure ventricles
- Ceject blood
- Dhypertension
78a sharp drop in blood volume/seriously weakened heart causes...
- Adecline in stroke volume
- Bmaintaining of cardiac output
- Cincrease in stroke volume
- Ddecline in cardiac output
79what is the sympathetic nervous system activated by for the heart?
- Astressors
- Bspontaneous changes in membrane potential
- Cinactive membrane potential
- Dhormones
80to slow heart rate: [blank_start]norepinephrine[blank_end] binds to beta1 adrenergic receptors on the heart, pacemaker cells fire more rapidly, end [blank_start]diastolic[blank_end] volume decreases, contractility [blank_start]increases[blank_end], action is opposed by the [blank_start]parasympathetic[blank_end] nervous system, and [blank_start]ACh[blank_end] hyperpolarizes pacemaker cells by opening [blank_start]potassium[blank_end] channels.
- Anorepinephrine
- Bdiastolic
- Cincreases
- Dparasympathetic
- EACh
- Fpotassium
81the heart at rest exhibits a vagal tone.
- AVerdadeiro
- BFalso
82what is the atrial reflex?
- Aa sympathetic reflex initiated by increased venous return
- Ba sharp drop in blood volumes
- Cthe opposition of the parasympathetic nervous system to the heart
- Dreduced ability of atria to eject blood to lungs
Informações
- Descrição
- Nursing Quiz sobre Heart, criado por tori szempruch em 21-02-2018.
- Autor
- tori szempruch
- Idioma
- English
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