GNRS 582 Week 7 Lecture Slides

gnrs-582-week-7-lecture-slides

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Question 1 of 1

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During depolarization, the inside of the cell becomes less negatively charged.

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During depolarization

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Na+ and Ca++
K+
Resulting in

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Moves out of cardiac muscle cells
Moves into cardiac muscle cells
contraction and less negative muscle cells

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During a refractory period, no new cardiac potenital can be initiated by stimulus.

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P wave
QRS wave
T wave

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Atrial depolarization
ventricular repolarization
Ventricular depolarization and atrial repolarization

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P-R interval
Q-R-S interval
Q-T interval

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under 0.38 seconds
under 0.10 seconds
0.12-0.20 seconds

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The SA node sets the pace because normally it is fastest

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314061

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Increased influx of Ca++ which increases the contractile strength of the heart and speed of electrical impulses through the heart muscle and nodes is caused by

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314062

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The primary cardiovascular control center is in the brainstem, in the medulla

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Acetylcholine causes a decrease in heart rate and vasodilation.

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314064

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Match with mathmatical formula

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MAP
Cardiac output

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Stroke volume X Hear Rate
Diastolic pressure + 1/3(Systolic pressure – Diastolic pressure)

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Baroreceptors are stretch receptors in the aorta and the carotid sinus. When activated, they decrease cardiac output (heart rate and stroke volume) and peripheral resistance, and thus lower blood pressure.

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314066

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ADH and Renin-angiotensin-aldosterone system
Atrial natriuretic peptide (ANP) and Brain natriuretic peptide (BNP)

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lower blood pressure
increase blood pressure

314067

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Epinephrine prepares the body for fight or flight – increases BP

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314068

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Inspiration interferes with venous return to the heart.

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Explanation

Inspiration aids venous return to heart due to pressure difference

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Adrenomedullin and insuline aid in blood pressure regulation.

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GNRS 582 Week 7 Lecture Slides

Question 1 of 1

Time Left

During depolarization, the inside of the cell becomes less negatively charged.

Select the correct answer(s).

(0/0)

During depolarization

Match the text (click and drag)

(0/0)

Na+ and Ca++

K+

Resulting in

Moves out of cardiac muscle cells

Moves into cardiac muscle cells

contraction and less negative muscle cells

During a refractory period, no new cardiac potenital can be initiated by stimulus.

Select the correct answer(s).

(0/0)

Match

Match the text (click and drag)

(0/0)

P wave

QRS wave

T wave

Atrial depolarization

ventricular repolarization

Ventricular depolarization and atrial repolarization

Match

Match the text (click and drag)

(0/0)

P-R interval

Q-R-S interval

Q-T interval

under 0.38 seconds

under 0.10 seconds

0.12-0.20 seconds

The SA node sets the pace because normally it is fastest

Select the correct answer(s).

(0/0)

Increased influx of Ca++ which increases the contractile strength of the heart and speed of electrical impulses through the heart muscle and nodes is caused by

Select the correct answer(s).

(0/0)

The primary cardiovascular control center is in the brainstem, in the medulla

Select the correct answer(s).

(0/0)

Acetylcholine causes a decrease in heart rate and vasodilation.

Select the correct answer(s).

(0/0)

Match with mathmatical formula

Match the text (click and drag)

(0/0)

MAP

Cardiac output

Stroke volume X Hear Rate

Diastolic pressure + 1/3(Systolic pressure – Diastolic pressure)

Baroreceptors are stretch receptors in the aorta and the carotid sinus. When activated, they decrease cardiac output (heart rate and stroke volume) and peripheral resistance, and thus lower blood pressure.

Select the correct answer(s).

(0/0)

Match

Match the text (click and drag)

(0/0)

ADH and Renin-angiotensin-aldosterone system

Atrial natriuretic peptide (ANP) and Brain natriuretic peptide (BNP)

lower blood pressure

increase blood pressure

Epinephrine prepares the body for fight or flight – increases BP

Select the correct answer(s).

(0/0)

Inspiration interferes with venous return to the heart.

Select the correct answer(s).

(0/0)

Explanation

Adrenomedullin and insuline aid in blood pressure regulation.

Select the correct answer(s).

(0/0)

Results

Correct

0

Incorrect

0