Question

In: Anatomy and Physiology

1.) The blood volume in left ventricle is the highest during end diastolic phase. True or...

1.) The blood volume in left ventricle is the highest during end diastolic phase.

True or False

2.) Arterial blood pressure is regulated by autonomic nervous system and kidneys.

True or False

3.) During diastole, intraventricular pressure rises as ventricles contract.

True or False

4.) T-wave of the electrocardiogram reflects ventricular repolarization.

True or False

Solutions

Expert Solution

1) True

Explanation :-

The blood volume in the left ventricle is highest at the end of diastole when blood from lungs is accumulated into the left ventricle.

2) True

Explanation :- Arterial blood pressure is under the control of sympathetic system and renin angiotensin system.

3) False

Correction :During diastole, intraventricular pressure decreases so that blood enters the ventricles.

4) True

Explanation :- ECG

Following waves are seen :

- P Wave : It is the small positive wave indicating atrial depolarizaton. It lead to atrial systole.

-QRS Complex : consists of three waves. Q wave which is small negative wave indicating septal depolarizaton. Large positive R wave indicating ventricular depolarizaton. And s wave.

This lead to ventricular contraction (systole).

- T Wave : It indicates ventricular Repolarization. This represents ventricular relaxation.

- PR interval: measure form start of P Wave to start of QRS complex.

It represents the time for the conduction of impulse from atria to ventricle.

- QT interval : measure from start of QRS to end T wave

-St segment : end of s wave to start of T Wave.

Sydney Mullin answered 7 months ago
Next > < Previous

Related Solutions

5. Larry's Heart rate is 120bpm, left ventricular end-diastolic volume is 113mL and left ventricular end-systolic...
5. Larry's Heart rate is 120bpm, left ventricular end-diastolic volume is 113mL and left ventricular end-systolic volume is 9mL. What is Larry's Cardiac Output in L/min?                   a. 12.48 L/min             b. 11.08L/min             c. 1359mL/min             d. 9.00L/min 3. Which receptors are responsible for short term regulation of MAP?             a. Carotid Sinus Receptors Only             b. Aortic Arch Receptors Only             c. Central Chemorecptors Only             d. A&B             e. A&C             f. B&C 2. Gases bind to...
1.In the human heart, blood is pumped from the left ventricle into the left atrium. right...
1.In the human heart, blood is pumped from the left ventricle into the left atrium. right atrium. pulmonary circuit. systemic circuit. 2.Systolic pressure is Group of answer choices the lowest blood pressure in the aorta. the pressure measured when the left ventricle is relaxed. the peak pressure in the aorta when the left ventricle contracts. the difference between the highest and lowest pressures. an average of high and low pressures. 3.The diastolic pressure for a normal young adult would be...
Draw the ‘length-tension relationship’ curve for left ventricular function i.e. Stroke Volume (SV) versus End-Diastolic Volume...
Draw the ‘length-tension relationship’ curve for left ventricular function i.e. Stroke Volume (SV) versus End-Diastolic Volume (EDV). Use this to explain the Frank Starling mechanism and explain how the autonomic nervous system can affect this curve. physiology
You know that stroke volume is the difference between End Diastolic Volume and End Systolic volume....
You know that stroke volume is the difference between End Diastolic Volume and End Systolic volume. The attending physician in the Cath lab just told you that your patient’s End Systolic Volume has decreased, and their stroke volume has increased. She asks you the following questions. How would you respond? a.What did the heart do to lower the End Systolic Volume? b.What two possibilities (mechanisms) could the heart have used to achieve the increase in stroke volume and lower End...
explain the pathway of blood as it travels through your body starting at the left ventricle
explain the pathway of blood as it travels through your body starting at the left ventricle
In normal condition during ventricular systole, the left ventricle is the first to begin contracting, but...
In normal condition during ventricular systole, the left ventricle is the first to begin contracting, but the right ventricle is the first to expel blood. How can you explain this difference? There are two different reasons! And in dilated cardiomyopathy of the left ventricle, the ventricle can become enormously enlarged. Explain why this might lead to regurgitation of blood through the mitral valve (blood flowing from the ventricle back into the left atrium) during ventricular systole.
(a) Draw and discuss the ventricular function (end-diastolic volume versus stroke volume) curve to illustrate the...
(a) Draw and discuss the ventricular function (end-diastolic volume versus stroke volume) curve to illustrate the Frank-Starling mechanism. (b) Explain how sympathetic stimulation, increased pre-load or increased after- load might affect this curve respectively
What chamber depolarizes during the P wave of the EKG? Right atria and Right ventricle Left...
What chamber depolarizes during the P wave of the EKG? Right atria and Right ventricle Left and Right Atria Left and Right Ventricles Right atria only Question 2 Which chamber (s) contract during the P wave Group of answer choices Right atria only Right atria and Right atria Right atria and ventricle Right and left ventricles Question 3 What is the purpose of atria contraction? To stimulate the ventricles to contract To open AV valves To fill the remaining 10%...
TRUE OR FALSE 1.The amount of blood in the ventricles at the end of the ventricular...
TRUE OR FALSE 1.The amount of blood in the ventricles at the end of the ventricular filling phase is the end –systolic volume 2. The first branch of the aortic arch is the brachiocephalic artery, which divides into the left common carotid artery and the left subclavian artery. 3. Tissue perfusion to the heart decreases during systole and increases during diastole 4. Atrial systole is responsible for ejecting most of the blood into ventricles during the ventricular filling phase of...
The Owner’s ability to influence design and cost is highest at the construction phase. True False...
The Owner’s ability to influence design and cost is highest at the construction phase. True False The conceptual estimate is useful in the schematic design phase when design details are not available. True False A Cost-Plus contract is considered a reimbursable type of contract. True False An advantage of a Lump Sum Contract is that the owner assumes the risk of construction cost. True False
ADVERTISEMENT
Subjects
ADVERTISEMENT
Latest Questions
ADVERTISEMENT