Lab BIO 202 HW Quiz 2 Heart and Circulatory 1.
View the step-by-step solution to:

Question


 

Lab BIO 202 HW Quiz 2 Heart and Circulatory


1. The

Superior Vena Cava *

returns blood to the body

2nd and 4th choices

is a major vein

returns blood from the body inferior to the heart

is a major artery


2. Which large blood vessel divides into left and right pulmonary arteries? *

Superior Vena Cava

Aorta

None of the above

Pulmonary trunk


3. This structure initiates action potentials in the intrinsic conduction system in the heart. *

Autonomic Neurons

AV bundle of His

Ventricular cells

Right and Left Atrial cells

None of the above


4. An instrument called an electrocardiograph is *

1st and 2nd choices

None of the above

used to record the electrical changes in the heart

used to record only the systole since that is contractions

used to record all of the diastole and systole events of the heart


5. Name this wave: small, curved upward deflection represents atrial depolarization. *

t wave

p wave

b wave

none of the above waves


6. Name this wave: medium curved upward deflection represents ventricular repolarization *

b wave

p wave

none of the above waves

t wave

7. Which of the following represents ventricular depolarization? *

b wave

p wave

t wave

none of the above


8. Which event of the ECG represents the time it takes for the electrical conduction to travel through the atria and AV node to Purkinje fibers? *

Q-T interval

QRS complex

none of the above

S-T segment

P-Q interval


9. Which event of the ECG represents the time of beginning of ventricular depolarization to end of ventricular repolarization? *

P-T segment

none of the above

S-T segment

Q-T interval

t wave


10. When measuring blood pressure, the first sound heard is the *

blood returning to the heart's pressure

none of the above

systolic pressure

diastolic pressure

mean arterial pressure since it's an artery that's being tested


11. Which of the following describes a normal blood pressure of 16 mmHg? *

systolic pressure

venous return pressure

none of the above

the result of the formula : diastolic/systolic pressure

diastolic pressure


12.Which of the following measurements is the following formula for: systolic bp- diastolic bp? *

MAP/3

pulse pressure

Venous return

MAP

13. The formula for measuring MAP is: *

MAP = diastolic bp + (pulse pressure/3)

MAP = diastolic bp - ( pulse pressure/3)

MAP = pulse pressure/3

MAP = diastolic bp - systolic bp


14. Using the formula to calculate MAP, calculate MAP from the following bp reading: 115/25 *

-65 mmHg

55 mmHg

72 mmHg

none of the above

4.6 mmHg


15. Exercise will cause an increase in stroke volume. *

Yes

No

Both

 

Top Answer

1). Superior vena cava returns blood from the body inferior to the heart. 2). Pulmonary trunk 3). None of these... View the full answer

Sign up to view the full answer

Why Join Course Hero?

Course Hero has all the homework and study help you need to succeed! We’ve got course-specific notes, study guides, and practice tests along with expert tutors.

  • -

    Study Documents

    Find the best study resources around, tagged to your specific courses. Share your own to gain free Course Hero access.

    Browse Documents
  • -

    Question & Answers

    Get one-on-one homework help from our expert tutors—available online 24/7. Ask your own questions or browse existing Q&A threads. Satisfaction guaranteed!

    Ask a Question