Explore the fundamentals of heart function with this A&P 2 quiz. Assess your knowledge on heart sounds, valve operations, blood pressure effects, and electrical activity through specific, targeted questions. Ideal for students preparing for advanced placements or medical entrance exams.
Acoommodate a greater volume of blood
Expand the thracic cage during diastole
Pump blood with greater pressure
Pump blood through a smaller valve
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Decreased delivery of oxygen
A decrease in the number of available mitochondria for energy production
A lack of nutrients to feed into metabolic pathways
An inadequate supply of lactic acid
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Hepatic portal circulation
Pulmonary circulation
Coronary circulation
Cerebral circulation
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Trabeculae carneae
Pectinate muscles
Papillary muscles
Venae cavae
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All carry oxygenated blood to the heart
All carry blood away from the heart
All contain valves to prevent the backflow of blood
Only large arteries are lined with endothelium
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Arterioles
Arteries
Veins
Capillaries
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120/80 in a 30 year old man
140/90 in a 70 year old woman
170/96 in a 50 year old man
110/60 in a 20 year old woman
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A lowering of blood pressure due to change in cardiac output
A rise in blood pressure due to change in cardiac output
No change in blood pressure but a slower heart rate
No change in blood pressure but a change in respiration
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Tracing out where the auricles connect
Noticing the thickness of the venricle walls
Locating the apex
Finding the papillary muscles
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Has gap junctions that allow it to act as a functional syncytium
Lacks striations
Has more nuclei per cell
Cells are larger than skeletal muscle cells
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Right atrium
Left atrium
Right ventricle
Left ventricle
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AV node
Bundle of His
AV valve
SA node
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Aorta only
Pulmonary arteries only
Pulmonary veins only
Both aorta and pulmonary trunk
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Tunica intima
Tunica media
Tunica externa
Basement membrane
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Blood will be deverted to the digestive organs
The skin will be cold and clammy
Capillaries of the active muscles will be engorged with blood
Blood flow to the kidneys increases
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Ventricular repolarization
Ventricular depolarization
Atrial repolarization
Atrial depolarization
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Muscular arteries
Elastic arteries
Areterioles
Venules
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Venae cavae
Pulmonary trunk
Aorta
Pulmonary veins
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Excitation of the SA node
Closure of the heart valves
Friction of blood against the chamber walls
Opening and closing of the heart valves
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Coronary sinus
Fossa ovalis
Coronary arteries
Coronary veins
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Pumps a greater volume of blood
Pumps blood against a greater resistance
Expands the thoracic cage
Sends blood through a smaller valve
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Pressure in the heart is at its peak
Blood flows passively through the atria and the open AV valves into the ventricles
The atria remain in diastole
It is represented by the P wave on the ECG
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Increased work of the left ventricle
Increased incidence of coronary artery disease
Increased damage to blood vessel endothelium
Decreased size of the heart muscle
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Activity of skeletal muscles
Pressure changes in the thorax
Venous valves
Urinary output
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The fibrous skeleton forms the bulk of the heart
Connective tissue in the heart wall aids in the conduction of the action potential
The heart chambers are lined by the endomysium
They myocardium is the layer of the heart that actually contracts
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Nervous control that operates via reflex arcs involving baroreceptors, chemoreceptors and higher brain centers
The dural sinus reflex
Renal regulation via the renin-angiotensin system of vasoconstriction
Chemical controls such as atrial natriuretic peptide
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The mitral valve seperates the right atrium from the right ventricle
The tricuspid valve divides the left atrium from the left ventricle
Aortic and pulmonary valves control the flow of blood into the heart
The AV valves are supported by chordae tendineae so that regurgitation of blood into the atria during ventricle contaction does not occur
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Superior vena cava, right atrium, and left ventricle
Right ventricle, pulmonary artery, and left atrium
Left ventricle, aorta, and inferior vena cava
Right atrium, aorta, and left ventrilce
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Decreasing heart contractility
Causing a decrease in stroke volume
Blocking the action of calcium
Causing threshold to be reached more quickly
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Cardiac output
Peripheral resistance
Emotional state
Blood volume
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ADH
Atrial natriuretic peptide
Angiotensin II
Nitric acid
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Hydrostatic and osmotic pressure
Hydrostatic pressure only
Blood volume and viscosity
Plasma and formed element concentration
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Delivery of oxygen and nutrients to, and removal of wastes from, tissue cells
Gas exchange in the lungs
Absorption of nutrients form the digestive tract
Blood clotting
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Ischemia
Pericarditis
Myocardial infarct
Angina pectoris
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Connects the two atria in the fetal heart
Is a condition in which the heart valves do not completley close
Is a shallow depression in the intreventricular septum
Is a connection between the pulmonary trunk and the aorta in the fetus
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Promote an increase in blood pressure
Promote a decrease in blood volume
Result in a larger ouput of urine
Decrease sodium reabsorption
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Systolic pressure plus diastolic pressure
Systolic pressure minus diastolic pressure
Systolic pressure divided by diastolic pressure
Diastolic pressure plus 1/3 (systolic pressure plus diastolic pressure)
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Tunica intima
Tunica media
Tunica externa
Basement membrane
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Their prime function is the exchange of nutrients and wastes between the blood and tissue cells
The contraction and realxation of the smooth muscle in their walls can change their diameter
They distribute blood to various parts of the body
They contain a large quantity of elastic tissue
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Skin temperature
ADH
Intrinsic autoregulatory mechanisms
The hypthalamic "thermostat"
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Ventricles are in diastole
Blood enters pulmonary artieries and the aorta
Av valves are closed
Ventricles are in systole
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Is controlled mainly by decreasing pH
Increases when environmental temperature rises
Increases when body temperature drops so that the skin does not freeze
Is not an important source of nutrients and oxygen for skin cells
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Morning
Noon time
Evening
During sleep
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Refers to the short period during ventricular systole when the ventricles are completely
Occurs while the AV valves are open
Occurs immediately after the aortic and pulmonary valves close
Occurs only in people with heart valve defects
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Mild electrical shock to the heart itself
Severe electrical shock to the body
Relatively mild blow to the chest that occurs during a vulnerable interval (2 ms) when the heart is repolarizing
Loss of blood from an artery
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120/80
90/55
150/90
130/80
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Yes
No
Not necessarily
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While the ventricle is in diastole
When the ventricle is in systole
While the atrium is contracting
By the movement of blood from the atrium to ventricle
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