Loading....
Coupon Accepted Successfully!

Physiology

Open Flashcards

Cardiovascular System

Question
11 out of 16
 

Bernoulli’s principal states (DNB Dec-2009)



A Sum of kinetic energy of flow and pressure energy is constant

B Low tones producing maximal stimulation at apex of cochlea

C Magnitude of the sensation felt is proportionate to the log of the intensity of stimulus

D Force of contraction is proportional to the stretch of cardiac muscle

Ans. A Sum of kinetic energy of flow and pressure energy is constant

I. Bernoulli Principle: ­

a. "In a tube or a blood vessel the total energy - the sum of the kinetic energy of flow and the pressure energy - is constant." Q

b. The greater the velocity of flow in a vessel, the lower the lateral pressure distending its walls. Q

II. Frank - Starling law: (Option d)

a. "Energy of the contraction is proportional to the initial length of the cardiac muscle fiber. Q

b. " For the heart, the length of the muscle fibers (ie. Extent' of the pre-load) is proportionate to the end-diastalic volume.

c. Weber-Fechner law - "the magnitude of the sensation felt is proportionate to the log of the intensity of the stimulus." Q

Cardiovascular System Flashcard List

16 flashcards
1)
2)
3)
4)
5)
6)
7)
8)
9)
10)
11)
12)
13)
14)
15)
16)