21 Sep In the cardiac cycle, the right atrium fills first, then the left atrium.
BSC2089 Human Anatomy and Physiology II
Module 3 Quiz
Question 1In the cardiac cycle, the right atrium fills first, then the left atrium.
Question 2Which statement is true?
Tachycardia will decrease cardiac output
Hypoxia can decrease cardiac output
The right atrium receives oxygenated blood from the lungs
Blood pressure is a measurement of systolic pressure/diastolic pressure
Question 3A consistent resting blood pressure of 120/88 would be considered:
Stage 2 hypertension
Stage 1 hypertension
Question 4The “dub” sound (or S2) is created by:
The semilunar valves opening
The semilunar valves closing
The AV valves closing
The AV valves opening
Question 5Which statement is true regarding blood pressure?
The systolic pressure relates to the pressure in the blood vessels when the ventricles are not contracting.
Blood pressure doesn’t impact cardiac output.
Blood pressure can be influenced by body position and emotional states.
Diastolic pressure is higher than systolic in a healthy person.
Question 6The blood pressure of veins should always be slightly higher than arteries in a healthy person.
Question 7The cardiac conduction system causes the right atrium and right ventricle of the heart to contract at the same time, and then the left atrium and left ventricle contract at that same time?
Question 8Which of the following statements is true regarding the cardiac cycle?
The right atrium receives oxygenated blood from the body
The T wave on the EKG graph/measurement represents ventricular contraction
The left atrioventricular (AV) valve is commonly referred to as pulmonary valve
The ventricles contract at the same time
Question 9The thickest layer of an artery is the:
Question 10Bradycardia is characterized as a heart rate of less than 60 beats per minute.
Question 11Which statement is NOT true regarding the cardiac cycle?
The P wave on the EKG graph/measurement relates to atria going through the depolarization process
The right ventricle will pump blood out to the lungs so the red blood cells can become oxygenated
The heart valves allow one-way flow of blood through the heart
Systole relates to when the ventricles are not contracting
Question 12What statement is true regarding blood vessels?
Veins typically have a higher blood pressure than arteries
Veins typically carry oxygenated blood through the body
The endothelium is only found in arteries and veins
Nutrient, gas and product exchange only occurs in the capillaries
Question 13The SA node can influence cardiac output.
Question 14Which of the following is true of the cardiac output?
Cardiac output decreases substantially when exercising.
Cardiac output stays consistent throughout the day with little variation.
CO is equal to heart rate multiplied stroke volume.
CO is the volume of blood pumped from one ventricle in a span of one hour.
Question 15Blood flows from the elastic arteries to the ___ then ___.
Arterioles; muscular arteries
Muscular arteries; arterioles
Question 16The ventricles are contracting when the heart is in the systolic phase.
Question 17The thickest layer of large veins is the tunica externa.
Question 18Blood exiting the right ventricle flows through which valve?
Question 19What factor does NOT influence stroke volume?
High blood pressure
The amount of stretch or tension in the ventricle just before it contracts
The amount of blood that is filling up the ventricle
The oxygen levels in the blood
Question 20The entire cardiac cycle is dependent upon the AV node generating the electrical impulse to start a heartbeat.
Question 21What statement is true regarding blood vessels?
The arteries typically carry oxygenated blood from away from the heart
The tunica interna contains the smooth muscle
Venules allow for nutrient, product, gas and waste exchange to occur between the body cells and blood vessels
The lumen of arteries is larger than that of veins.
Question 22Which of the following choices is the correct route of blood flow through the systemic circuit after leaving the heart?
Arterioles, arteries, capillaries, veins, venules
Arteries, capillaries, veins, venules, arterioles
Arteries, venules, capillaries, arterioles, veins
Arteries, arterioles, capillaries, venules, veins
Question 23Which of the following factors decreases stroke volume?
Question 24Which statement is true of blood vessels?
All arteries have valves to prevent backflow.
The blood pressure of the veins is equal to the blood pressure of the arteries in a healthy person.
Capillaries are the only type of vessel that allow exchange of gases and nutrients.
The tunica media of veins is thicker than the tunica media of arteries.
Question 25Which of the following statements is true?
The left atrium fills before the right atrium during every heartbeat.
Stroke volume is the amount of blood pumped from one ventricle in span of one minute.
An arteriole is classified as the largest type of artery.
Heart rate can influence cardiac output
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