Question 1

Vasogenic shock is triggered by widespread ____________________ of blood vessels.

Accepted Answer

The answer of Vasogenic shock is triggered by widespread ____________________...

Question 2

Match the effects, labelled a. through d., with the events in question. (Options may be used more than once or not at all.)
a.increase BP
b.decrease BP
c.increase heart rate only
d.have no effect on BP or heart rate
-increased vasomotor centre activity

Accepted Answer

Increased vasomotor centre activity leads to vasoconstriction and increased blood pressure.

Answer: B 
 Decreased vasomotor centre activity leads to vasodilation and decreased blood pressure.

Answer: C 
 Increased vasomotor centre activity does not directly affect heart rate.

Answer: D 
 No effect on BP or heart rate means that vasomotor centre activity is not altered and remains at its baseline level.

Question 3

Increased sympathetic nerve activity _____ the venous radius.

Accepted Answer

The answer of Increased sympathetic nerve activity _____ the venous...

Question 4

The primary mechanism for exchange of individual solutes across the capillary wall is ____________________.

Accepted Answer

The answer of The primary mechanism for exchange of individual...

Question 5

Match the effects, labelled a. through d., with the events in question. (Options may be used more than once or not at all.)
a.increase BP
b.decrease BP
c.increase heart rate only
d.have no effect on BP or heart rate
-baroreceptors inhibited

Accepted Answer

CBaroreceptors are sensors located in blood vessels that help regulate blood pressure by sending signals to the brain to either increase or decrease heart rate and blood vessel dilation. When baroreceptors are inhibited, they cannot properly sense blood pressure changes, leading to a potential increase in blood pressure (A) because the body may not compensate for high blood pressure by dilating vessels or slowing heart rate. Additionally, inhibition can lead to an increase in heart rate (C) as the body attempts to maintain adequate blood pressure without the proper feedback from baroreceptors.

Question 6

Match the effects, labelled a. through c., with the change(s). (Options may be used more than once or not at all.)
a.This change would increase blood flow.
b.This change would decrease blood flow.
c.This change would have no effect on blood flow.
-increasing the pressure gradient in a vessel

Accepted Answer

Increasing the pressure gradient in a vessel would increase the force that pushes blood through the vessel, resulting in an increase in blood flow.

Question 7

Match the effects, labelled a. through c., with the change(s). (Options may be used more than once or not at all.)
a.This change would increase blood flow.
b.This change would decrease blood flow.
c.This change would have no effect on blood flow.
-increasing the resistance of a vessel

Accepted Answer

Increasing the resistance of a vessel would result in decreased blood flow due to the hindrance of blood flow created by the increased resistance.

Question 8

Match the effects, labelled a. through d., with the events in question. (Options may be used more than once or not at all.)
a.increase BP
b.decrease BP
c.increase heart rate only
d.have no effect on BP or heart rate
-stress

Accepted Answer

The answer of Match the effects, labelled a. through d.,...

Question 9

Match the effects, labelled a. through d., with the events in question. (Options may be used more than once or not at all.) a.increase BP b.decrease BP c.increase heart rate only d.have no effect on BP or heart rate -facultative Na⁺ reabsorption

Accepted Answer

The answer of Match the effects, labelled a. through d.,...

Question 10

Decreased O_2, increased CO₂, increased acid, and increased K⁺ concentrations in a skeletal muscle _____ the radius of the arterioles supplying this skeletal muscle.

Accepted Answer

The answer of Decreased O_2, increased CO₂, increased acid, and...

Question 11

Increased sympathetic nerve activity _____ the rate of depolarization of the SA node.

Accepted Answer

The answer of Increased sympathetic nerve activity _____ the rate...

Question 12

Match the effects, labelled a. through d., with the events in question. (Options may be used more than once or not at all.)
a.increase BP
b.decrease BP
c.increase heart rate only
d.have no effect on BP or heart rate
-adrenalin release

Accepted Answer

The answer of Match the effects, labelled a. through d.,...

Question 13

Match the effects, labelled a. through d., with the events in question. (Options may be used more than once or not at all.)
a.increase BP
b.decrease BP
c.increase heart rate only
d.have no effect on BP or heart rate
-chemoreceptors activated

Accepted Answer

The answer of Match the effects, labelled a. through d.,...

Question 14

Match the effects, labelled a. through d., with the events in question. (Options may be used more than once or not at all.)
a.increase BP
b.decrease BP
c.increase heart rate only
d.have no effect on BP or heart rate
-increased release of aldosterone

Accepted Answer

Increased release of aldosterone leads to increased reabsorption of sodium ions and water in the kidneys, which leads to an increase in blood volume and ultimately an increase in blood pressure.

Question 15

Match the effects, labelled a. through d., with the events in question. (Options may be used more than once or not at all.)
a.increase BP
b.decrease BP
c.increase heart rate only
d.have no effect on BP or heart rate
-increased release of vasopressin

Accepted Answer

Vasopressin is a hormone that acts on blood vessels, causing them to constrict and increase blood pressure. Therefore, increased release of vasopressin would result in an increase in BP.

Question 16

The process of ____________________ is responsible for determining the distribution of the extracellular fluid volume between the plasma and interstitial fluid.

Accepted Answer

The answer of The process of ____________________ is responsible for...

Question 17

Decreased parasympathetic nerve activity _____ total peripheral resistance.

Accepted Answer

The answer of Decreased parasympathetic nerve activity _____ total peripheral...

Question 18

Match the effects, labelled a. through d., with the events in question. (Options may be used more than once or not at all.)
a.increase BP
b.decrease BP
c.increase heart rate only
d.have no effect on BP or heart rate
-release of renin

Accepted Answer

The release of renin is typically associated with an increase in blood pressure, as it is part of the renin-angiotensin-aldosterone system which constricts blood vessels and retains sodium and water, both of which can contribute to raising blood pressure.

Question 19

Increased arteriolar radius _____ the total peripheral resistance.

Accepted Answer

The answer of Increased arteriolar radius _____ the total peripheral...

Question 20

Increased heart rate _____ cardiac output.

Accepted Answer

The answer of Increased heart rate _____ cardiac output....

Quiz 8: Muscle Physiology

Vasogenic shock is triggered by widespread ____________________ of blood vessels.

Match the effects, labelled a. through d., with the events in question. (Options may be used more than once or not at all.) a.increase BP b.decrease BP c.increase heart rate only d.have no effect on BP or heart rate -increased vasomotor centre activity

Increased sympathetic nerve activity _____ the venous radius.

The primary mechanism for exchange of individual solutes across the capillary wall is ____________________.

Match the effects, labelled a. through d., with the events in question. (Options may be used more than once or not at all.) a.increase BP b.decrease BP c.increase heart rate only d.have no effect on BP or heart rate -baroreceptors inhibited

Match the effects, labelled a. through c., with the change(s). (Options may be used more than once or not at all.) a.This change would increase blood flow. b.This change would decrease blood flow. c.This change would have no effect on blood flow. -increasing the pressure gradient in a vessel

Match the effects, labelled a. through c., with the change(s). (Options may be used more than once or not at all.) a.This change would increase blood flow. b.This change would decrease blood flow. c.This change would have no effect on blood flow. -increasing the resistance of a vessel

Match the effects, labelled a. through d., with the events in question. (Options may be used more than once or not at all.) a.increase BP b.decrease BP c.increase heart rate only d.have no effect on BP or heart rate -stress

Match the effects, labelled a. through d., with the events in question. (Options may be used more than once or not at all.) a.increase BP b.decrease BP c.increase heart rate only d.have no effect on BP or heart rate -facultative Na+ reabsorption

Decreased O2, increased CO2, increased acid, and increased K+ concentrations in a skeletal muscle _____ the radius of the arterioles supplying this skeletal muscle.

Increased sympathetic nerve activity _____ the rate of depolarization of the SA node.

Match the effects, labelled a. through d., with the events in question. (Options may be used more than once or not at all.) a.increase BP b.decrease BP c.increase heart rate only d.have no effect on BP or heart rate -adrenalin release

Match the effects, labelled a. through d., with the events in question. (Options may be used more than once or not at all.) a.increase BP b.decrease BP c.increase heart rate only d.have no effect on BP or heart rate -chemoreceptors activated

Match the effects, labelled a. through d., with the events in question. (Options may be used more than once or not at all.) a.increase BP b.decrease BP c.increase heart rate only d.have no effect on BP or heart rate -increased release of aldosterone

Match the effects, labelled a. through d., with the events in question. (Options may be used more than once or not at all.) a.increase BP b.decrease BP c.increase heart rate only d.have no effect on BP or heart rate -increased release of vasopressin

The process of ____________________ is responsible for determining the distribution of the extracellular fluid volume between the plasma and interstitial fluid.

Decreased parasympathetic nerve activity _____ total peripheral resistance.

Match the effects, labelled a. through d., with the events in question. (Options may be used more than once or not at all.) a.increase BP b.decrease BP c.increase heart rate only d.have no effect on BP or heart rate -release of renin

Increased arteriolar radius _____ the total peripheral resistance.

Increased heart rate _____ cardiac output.

Match the effects, labelled a. through d., with the events in question. (Options may be used more than once or not at all.) a.increase BP b.decrease BP c.increase heart rate only d.have no effect on BP or heart rate -facultative Na⁺ reabsorption

Decreased O_2, increased CO₂, increased acid, and increased K⁺ concentrations in a skeletal muscle _____ the radius of the arterioles supplying this skeletal muscle.