Cardio week 3 part 1 from stormi

Where is the highest pressure found in the circulation?

• Veins

• Aorta

• Arterioles

• Capillaries

Where does the biggest pressure drop occur in the circulation?

• Aorta

• Veins

• Arterioles and capillaries

• Pulmonary arteries

Where is the lowest pressure found in the circulation?

• Aorta

• Veins

• Arterioles

• Capillaries

Fill in the blank: In systemic circulation, pressures are much _______.

• higher

• lower

• equal

• variable

Fill in the blank: In pulmonary circulation, pressures are much _______.

• lower

• higher

• equal

• unstable

What is wide pulse pressure associated with?

• Aortic regurgitation

• Hyperthyroidism

• Isolated systolic hypertension

• All of the above

Narrow pulse pressure is associated with which of the following conditions?

• Reduced ejection fraction

• Hyperthyroidism

• Isolated systolic hypertension

• Large artery stiffness

Which of the following is NOT an immediate control mechanism of blood pressure?

• Baroreceptor Feedback Mechanism

• Central Nervous System Ischemic Mechanism

• Chemoreceptor Mechanism (CNS pCO2 and pH sensors)

• Renin-Angiotensin System (RAS) vasoconstriction mechanism

Tags

NGSS.HS-LS1-3

List the consequences of activation of immediate control mechanisms of blood pressure.

• - Constriction of the veins and transfer of blood into the heart - Increased heart rate and contractility of the heart to provide greater pumping capability by the heart - Constriction of peripheral arterioles (not coronary or pulmonary)

• - Dilation of the veins and reduction of blood flow to the heart - Decreased heart rate and contractility of the heart - Dilation of peripheral arterioles (not coronary or pulmonary)

• - Increased urine output and decreased blood volume - Suppression of sympathetic nervous system activity - Relaxation of the heart muscle

• - Inhibition of renin-angiotensin system - Decreased aldosterone secretion - Lowered blood glucose levels

Tags

NGSS.HS-LS1-3

Which of the following is a sub-acute control mechanism of blood pressure?

• Baroreceptor Feedback Mechanism

• Renin-Angiotensin System (RAS) vasoconstriction mechanism

• Chemoreceptor Mechanism

• Central Nervous System Ischemic Mechanism

Tags

NGSS.HS-LS1-3