Questão 1
Questão
Which component of the CVS is the drainage?
Responda
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Heart
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Arteries
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Veins and lymphatics
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Capillaries
Questão 2
Questão
Blood needs a circulation system as diffusion becomes exponentially slower as distance increases.
Questão 3
Questão
An artery is a vessel with oxygenated blood.
Questão 4
Questão
The pulmonary circuit is in [blank_start]series[blank_end] with the systemic circuit. Organ circulations are [blank_start]parallel[blank_end] branches of the systemic circuit.
Questão 5
Questão
Which organ is the only organ to receive CO2 rich blood? (Excluding the heart)
Questão 6
Questão
The right AV valve is this type of valve.
Questão 7
Questão
Choose the correct equation for blood flow.
Responda
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Q = ΔP/R
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Q = ΔR/P
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Q = ΔP*R
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Q = P*R
Questão 8
Questão
The blood vascular system is [blank_start]a closed[blank_end] entry, continuous [blank_start]loop[blank_end]. The lymphatic vascular system is [blank_start]an open[blank_end] entry, [blank_start]one way[blank_end] system.
Responda
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a closed
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an open
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loop
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one way
Questão 9
Questão
Choose the correct statements about arteries.
Responda
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Major arteries are situated deeply and/or on flexor aspects of limbs.
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Each organ receives supply from only one specific artery.
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Arteries change name at major branches.
Questão 10
Questão
To shift the same amount of blood per second, [blank_start]veins[blank_end] must have a cross sectional area twice that of [blank_start]arteries[blank_end].
Questão 11
Questão
Choose the incorrect statement about CVS diseases.
Responda
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Cardiovascular disorders cause at least 50% of all deaths.
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Cerebrovascular disease (stroke) has the same root cause as coronary artery disease (heart disease).
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Axillary arteries play a crucial role in the spread of metastases (cancers).
Questão 12
Questão
Choose the incorrect statement about the heart's position.
Responda
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The apex sits in line with the mid clavicular line.
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The apex points to the fifth intercostal space.
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The base is in line with the second intercostal space.
Questão 13
Questão
Choose the structure(s) that the right atrium receives from.
Responda
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Superior vena cava
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Inferior vena cava
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Coronary sinus
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Four pulmonary veins
Questão 14
Questão
Which ventricle has a thicker myocardium?
Questão 15
Questão
The heart wall's innermost component is the [blank_start]endocardium[blank_end], which is [blank_start]squamous[blank_end] epithelium that provides a non-stick surface and which prevents [blank_start]clots[blank_end]. It also contains loose, irregular fibrous connective tissue, small vessels, and [blank_start]Purkinje fibers[blank_end].
The next layer is the [blank_start]myocardium[blank_end], which is cardiac muscle.
The next, more superficial layer is the [blank_start]epicardium[blank_end]. It contains adipose, connective tissue, and [blank_start]large vessels[blank_end]. Its visceral pericardium loops over to become the [blank_start]parietal[blank_end] pericardium, with the [blank_start]pericardial space[blank_end] in between. This space is filled with pericardial fluid that reduces [blank_start]friction[blank_end].
The heart is finally wrapped in [blank_start]fibrous[blank_end] pericardium.
Responda
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endocardium
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myocardium
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epicardium
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fibrous
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squamous
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cuboidal
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clots
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Purkinje fibers
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large vessels
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parietal
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pericardial space
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friction
Questão 16
Questão
The right atrioventricular valve is also known as the:
Responda
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Bicuspid valve
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Tricuspid valve
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Mitral valve
Questão 17
Questão
During diastole, the AV valves are:
Questão 18
Questão
The chordae tendinae attach to the [blank_start]papillary muscles[blank_end] which attach to the [blank_start]ventricular walls[blank_end]. They allow the valves to close [blank_start]slowly and more safely[blank_end] to prevent [blank_start]wear and tear[blank_end].
Responda
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papillary muscles
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ventricular walls
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ventricular walls
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papillary muscles
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slowly and more safely
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quickly and securely
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wear and tear
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leaks
Questão 19
Questão
Both semilunar valves are tricuspid.
Questão 20
Responda
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AV valves are closed, semilunar valves are open
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AV valves are closed, semilunar valves are closed
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AV valves are open, semilunar valves are open
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AV valves are open, semilunar valves are closed
Questão 21
Questão
The cardiac circulation is the first organ system to receive blood from the aorta. The coronary arteries are named sensibly as the right coronary artery and the left coronary artery. The anterior interventricular artery branches from the [blank_start]left[blank_end] coronary artery. All three of these vessels join the [blank_start]circumflex[blank_end] artery on the [blank_start]posterior[blank_end] of the heart.
On the [blank_start]anterior[blank_end] of the heart also reside the great cardiac vein and the small cardiac vein. The [blank_start]coronary[blank_end] sinus is the final vein which drains into the [blank_start]right[blank_end] atria directly.
Responda
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left
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circumflex
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posterior
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anterior
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coronary
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right
Questão 22
Questão
Select the correct characteristics of myocardium.
Responda
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Striated
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Non-striated
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Branched
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Spindle shaped
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central, oval nuclei
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peripheral nuclei
Questão 23
Questão
The mitochondria make up what percent of myocardiac cell volume?
Questão 24
Questão
The sarcomeres in myocardium are irregularly branched, unlike skeletal muscle sarcomeres.
Questão 25
Questão
Choose the incorrect statement about intercalated discs.
Responda
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They contain adhesion belts which join actin to action.
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They contain desmosomes which join cytokeratin to cytokeratin.
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They contain gap junctions which are perpendicular to the axis of contraction.
Questão 26
Questão
The conduction pathway in the heart is nervous tissue that can be innervated by the autonomic nervous system if needed.
Questão 27
Questão
Electrically conductive cells make up what percent of the cells in the heart?