25. Which of the following has its blood flow mostly neurally regulated? A. Brai

Question

25. Which of the following has its blood flow mostly neurally regulated?

A. Brain                  C. Liver

B. Lung                  D. Skin

26. Atrial and ventricular diastole overlap during?

A. P - R interval                 C. T - P interval

B. R - T interval                 D. None of the above

27. Diving or falling into very cold water will reflexively:

A.       Make you take a deep breath                 C.       Increase HR and heat production

B.       Slow HR and stop respiration                 D.       Cause your knee to jerk

28. The QRS complex would immediately precede which one of the following events?

A. Ventricular contraction C.   Atrial Contraction

B. Second heart sound                D.   Semilunar valve closure

Explanation / Answer

25- Answer A - Brain- The brain is only organ that can regulated blood flow by  baroreceptors.

26- answer-

C. T-P interval  

Explanation- The line in ECG represents period of electrical inactivity occurring after the end of the T waveand before the beginning of the P wave. It is shown due to Atrial and ventricular diastole overlaping.

27 answer- A Make you take a deep breath

Explanation-It orders the respiratory system to take in as much oxygen as needed so as to if the body remains submerged in the water for a few seconds more then also deficit oxygen won't be the problem.

28- answer- A ventricular contraction.

Explanation- ventricular contraction is an step show. After that it become in P- wave.

Related Questions

Navigate

• Browse (All)
• Browse 2
• Subjects

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.