14535132
Descrição
Quiz por Catherine Oh, atualizado more than 1 year ago
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Criado por Catherine Oh
mais de 7 anos atrás
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|
Questão 1
Questão
This portion protects and anchors the hearts, preventing overstretching. It is made from dense irregular connective tissue.
Responda
-
mediastinum
-
epicardium
-
fibrous pericardium
-
endocardium
Questão 2
Questão
The [blank_start]serous[blank_end] pericardium consists of the parietal layer which is fused with fibrous [blank_start]pericardium[blank_end] and a [blank_start]visceral[blank_end] layer which is the epicardium that holds direct contact with the heart.
Responda
-
serous
-
pericardium
-
visceral
Questão 3
Questão
Serous fluid is found outside of the parietal and visceral pericardia in the pericardial cavity.
Responda
- True
- False
Questão 4
Questão
Grooves on the outside of the heart that separate the chambers called [blank_start]sulci[blank_end]. They contain blood vessels and [blank_start]fat[blank_end].
Responda
-
sulci
-
fat
Questão 5
Questão
What are all the correct characteristics about the auricle?
Responda
-
Is a pouch-like structure on the anterior surface of atrium.
-
Is found between the parietal and visceral pericardia in the pericardial cavity.
-
Helps holds atria hold a greater volume of blood.
-
Are found on the left and right side of the heart.
Questão 6
Questão
Which chambers are the receiving chambers of the heart?
Responda
-
ventricles
-
atria
-
superior and inferior vena cava
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tricuspid (AV) valve
Questão 7
Questão
What right atrium receives blood from what 3 sources?
Responda
-
superior vena cava
-
inferior vena cava
-
coronary sinus
-
left ventricle
Questão 8
Questão
What is another name for the aortic valve?
Responda
-
semilunar valve
-
atrioventricular valve
Questão 9
Questão
These valves prevent backflow from the ventricles to the atria.
Responda
-
left and right atrioventricular valves
-
left and right semilunar valves
Questão 10
Questão
These valves prevent backflow from the arteries into the ventricles.
Responda
-
Atrioventricular valve
-
Semilunar valve
Questão 11
Questão
The right AV valve is also known as the:
Responda
-
bicuspid
-
mitra
-
tricuspid
Questão 12
Questão
What portion of the heart supplies heart cells with fresh oxygen and nutrients?
Responda
-
coronary veins
-
coronary arteries
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semilunar valves
-
atrioventricular valves
Questão 13
Questão
These structures collect waste from cardiac muscle and drain into a large vein (coronary sinus) which then empties into the right atrium.
Responda
-
coronary veins
-
coronary arteries
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sinoatrial node
-
purkinje fibers
Questão 14
Questão
What are some characteristics of cardiac muscle?
Responda
-
branched
-
intercalated discs
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gap junctions
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desmosomes
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voluntary
-
multi-nucleated
Questão 15
Questão
The presence of [blank_start]creatine[blank_end] kinase in the blood indicates injury of skeletal or cardiac muscle cells. This is often an indicator of a myocardial [blank_start]infarction[blank_end].
Responda
-
creatine
-
infarction
Questão 16
Questão
Name the correct structures. (singular)
Responda
-
intercalated disc
-
gap junction
-
desmosome
Questão 17
Questão
What are these structures? Give the actual names, not the kind of filament.
Responda
-
actin
-
myosin
Questão 18
Questão
What type of contraction does each colour indicate?
Responda
-
atrial
-
ventricular
Questão 19
Questão
Auto-rhythmic fibers repeatedly generate spontaneous action potentials that then trigger heart [blank_start]contractions[blank_end]. First, they act as [blank_start]pacemakers[blank_end], and second they form the conduction system which [blank_start]propagates[blank_end] actions potentials through the heart muscle.
Responda
-
contractions
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excitations
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depolarizations
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propagates
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instigates
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implicates
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stimuli
-
controllers
-
pacemakers
Questão 20
Questão
What channels open for depolarization?
Responda
-
Ca2+
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Na2+
-
K+
Questão 21
Questão
During the plateau phase, _______ channels opens and let ______ions enter from outside cell and from storage in SR.
Responda
-
Ca2+, Ca2+
-
Na2+, Ca2+
-
K+, K+
-
K+, Ca2+
Questão 22
Questão
After Ca2+ ions are open to enter the outside cells, Ca2+ binds to ________ to allow for actin-myosin cross-bridge formation and tension development. This is the beginning of muscle contraction.
Responda
-
troponin
-
epinephrine
-
myosin
-
actin
Questão 23
Questão
The refractory period is a period of time that a cell cannot be stimulated by another action potential.
Responda
- True
- False
Questão 24
Questão
Cardiac muscles rely on [blank_start]aerobic[blank_end] cellular respiration for [blank_start]ATP[blank_end] production. They have many [blank_start]mitochondria[blank_end] and use lactic acid produced by [blank_start]skeletal[blank_end] muscles.
Responda
-
ATP
-
aerobic
-
mitochondria
-
skeletal
Questão 25
Questão
One cardiac cycle consists of a systole and diastole of both atria, rapidly followed by the systole and diastole of both ventricles.
Responda
- True
- False
Questão 26
Questão
What is the sound of the first "lubb" in a heartbeat?
Responda
-
Blood turbulence during rapid ventricular filling.
-
Blood turbulence associated with closing of the AV valves after ventricular systole.
-
Blood turbulence associated with closing of the semilunar valves near the beginning of the ventricular diastole
-
Blood turbulence during atrial systole.
Questão 27
Questão
Blood turbulence associated with closing of the semilunar valves near the beginning of the ventricular diastole makes the second heart sound. ("dupp" of the lupp-dupp)
Responda
- True
- False
Questão 28
Questão
Blood turbulence during rapid ventricular filling makes the third heart sound during a cardiac cycle.
Responda
- True
- False
Questão 29
Questão
Blood turbulence during atrial systole is the fourth sound and is loud enough to hear after the first 2 closures of the heart.
Responda
- True
- False
Questão 30
Questão
Atrial systole is when blood is ejected and completely fills the ventricles.
Responda
- True
- False
Questão 31
Questão
What is the correct relationship between cardiac output, stroke volume and heart rate?
Responda
-
CO = HR X SV
-
HR = SV / CO
-
CO = SV / HR
-
SV = HR X CO
Questão 32
Questão
[blank_start]Stroke[blank_end] volume is the volume of blood ejected by the [blank_start]ventricle[blank_end] with EACH contraction.
Responda
-
Stroke
-
ventricle
Questão 33
Questão
Increased [blank_start]K+[blank_end] blocks generation of action potentials. Increased [blank_start]Na+[blank_end] blocks Ca2+ inflow. Increased [blank_start]Ca2+[blank_end] speeds heart rate and force of contraction.
Responda
-
K+
-
Na+
-
Na+
-
Ca2+
-
Ca2+
-
K+
-
Na+
-
K+
Questão 34
Questão
Elastic arteries include:
Responda
-
Pulmonary trunk
-
aorta
-
brachiocephalic subclavian
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common carotid
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common iliac
-
basilar arteries
Questão 35
Questão
What is an anatomses?
Responda
-
A division of a vein along a body part.
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Very small artery that lowers pressure.
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Union of two or more arteries supplying the same body region.
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Connects arterioles and venules.
Questão 36
Questão
Capillaries only consist of what two structures?
Responda
-
endothelium and basement membrane
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smooth muscle and endothelium
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connective tissue and basement membrane
-
smooth muscle and basement membrane
Questão 37
Questão
Capillaries function of exchange of nutrients an wastes between blood and tissue fluid.
Responda
- True
- False
Questão 38
Questão
What two structures create a bloodflow called the microcirculation?
Responda
-
metarteriole
-
intercellular cleft
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postcapillary venule
-
sinusoid
Questão 39
Questão
The myocardium consists of mostly [blank_start]cardiac[blank_end] muscle.
Responda
-
cardiac
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