28 Sep In the cardiac cycle, the right atrium fills first, then the left atrium.

•  Question 1 In the cardiac cycle, the right atrium fills first, then the left atrium.

1. True

 

2. False

 

•  Question 2 Which statement is true?

 

1.            Tachycardia will decrease cardiac output

 

2.            Hypoxia can decrease cardiac output

 

3.            The right atrium receives oxygenated blood from the lungs

 

4.            Blood pressure is a measurement of systolic pressure/diastolic pressure

 

•  Question 3 A consistent resting blood pressure of 120/88 would be considered:

 

1. Normal

 

2. Prehypertension

 

3. Stage 2 hypertension

 

4. Stage 1 hypertension

 

•  Question 4 The “dub” sound (or S2) is created by:

 

1. The semilunar valves opening

 

2. The semilunar valves closing

 

3. The AV valves closing

 

4.The AV valves opening

 

•  Question 5 Which statement is true regarding blood pressure?

 

1.The systolic pressure relates to the pressure in the blood vessels when the ventricles are not contracting.

 

2. Blood pressure doesn’t impact cardiac output.

 

3.Blood pressure can be influenced by body position and emotional states.

 

4. Diastolic pressure is higher than systolic in a healthy person.

 

•  Question 6 The blood pressure of veins should always be slightly higher than arteries in a healthy person.

 

1.True

 

2.False

 

•  Question 7 The 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?

 

1.True

 

2.False

 

•  Question 8 Which of the following statements is true regarding the cardiac cycle?

 

1.            The right atrium receives oxygenated blood from the body

 

2.            The T wave on the EKG graph/measurement represents ventricular contraction

 

3.            The left atrioventricular (AV) valve is commonly referred to as pulmonary valve

 

4.            The ventricles contract at the same time

 

•  Question 9 The thickest layer of an artery is the:

 

1.Tunica externa

 

2.Tunica interna

 

3.Tunica media

 

4.Endothelium

 

•  Question 10 Bradycardia is characterized as a heart rate of less than 60 beats per minute.

 

1. True

 

2. False

 

•  Question 11 Which statement is NOT true regarding the cardiac cycle?

 

1.The P wave on the EKG graph/measurement relates to atria going through the depolarization process

 

2.The right ventricle will pump blood out to the lungs so the red blood cells can become oxygenated

 

3. The heart valves allow one-way flow of blood through the heart

 

4. Systole relates to when the ventricles are not contracting

 

•  Question 12 What statement is true regarding blood vessels?

 

1. Veins typically have a higher blood pressure than arteries

 

2. Veins typically carry oxygenated blood through the body

 

3. The endothelium is only found in arteries and veins

 

4. Nutrient, gas and product exchange only occurs in the capillaries

 

•  Question 13 The SA node can influence cardiac output.

 

1.True

 

2 False

 

•  Question 14 Which of the following is true of the cardiac output?

 

1. Cardiac output decreases substantially when exercising.

 

2. Cardiac output stays consistent throughout the day with little variation.

 

3. CO is equal to heart rate multiplied stroke volume.

 

4. CO is the volume of blood pumped from one ventricle in a span of one hour.

 

•  Question 15 Blood flows from the elastic arteries to the ___ then ___.

 

1.Arterioles; muscular arteries

 

2. Venules; capillaries

 

3.Muscular arteries; arterioles

 

4. Capillaries; arterioles

 

•  Question 16 The ventricles are contracting when the heart is in the systolic phase.

 

1. True

 

2. False

 

•  Question 17

 

The thickest layer of large veins is the tunica externa.

 

1.True

 

2.False

 

•  Question 18 Blood exiting the right ventricle flows through which valve?

 

1.Tricuspid

 

2.Pulmonary

 

3. Aortic

 

4. Mitral

 

•  Question 19 What factor does NOT influence stroke volume?

 

1.High blood pressure

 

2. The amount of stretch or tension in the ventricle just before it contracts

 

3. The amount of blood that is filling up the ventricle

 

4. The oxygen levels in the blood  

 

•  Question 20 The entire cardiac cycle is dependent upon the AV node generating the electrical impulse to start a heartbeat.

 

1.True

 

2. False

 

•  Question 21 What statement is true regarding blood vessels?

 

1.The arteries typically carry oxygenated blood from away from the heart

 

2.The tunica interna contains the smooth muscle

 

3. Venules allow for nutrient, product, gas and waste exchange to occur between the body cells and blood vessels

 

4. The lumen of arteries is larger than that of veins.

 

•  Question 22 Which of the following choices is the correct route of blood flow through the systemic circuit after leaving the heart?

 

1. Arterioles, arteries, capillaries, veins, venules

 

2. Arteries, capillaries, veins, venules, arterioles

 

3. Arteries, venules, capillaries, arterioles, veins

 

4. Arteries, arterioles, capillaries, venules, veins

 

•  Question 23 Which of the following factors decreases stroke volume?

 

1.Sympathetic stimulation

 

2. Epinephrine

 

3. Hypoxia

 

4. Thyroid hormone

 

•  Question 24 Which statement is true of blood vessels?

 

1. All arteries have valves to prevent backflow.

 

2. The blood pressure of the veins is equal to the blood pressure of the arteries in a healthy person.

 

3.Capillaries are the only type of vessel that allow exchange of gases and nutrients.

 

4.The tunica media of veins is thicker than the tunica media of arteries.

 

•  Question 25 Which of the following statements is true?

 

1.The left atrium fills before the right atrium during every heartbeat.

 

2. Stroke volume is the amount of blood pumped from one ventricle in span of one minute.

 

3.An arteriole is classified as the largest type of artery.

 

4.Heart rate can influence cardiac output