MY CART (5)

Use Coupon: CART20 and get 20% off on all online Study Material

ITEM
DETAILS
MRP
DISCOUNT
FINAL PRICE
Total Price: Rs.

There are no items in this cart.
Continue Shopping
Menu
Grade:
        Please explain staling`s law in blood circulatory system.
5 months ago

Answers : (1)

Simran Vinaik
askIITians Faculty
889 Points
							Dear student
  1. During Diastole the ventricles fill to a volume called as End diastolic Volume(EDV).
  2. The heart does not eject all the blood it contains during systole. A small volume of blood which remains behind after contraction of ventricles is known as End Systolic Volume (ESV).
  3. Important point to understand is that stroke volume which is volume of blood ejected during a systole can be equated as : EDV- ESV. A normal SV is 70 ml.
  4. An increase in SV occurs when EDV is increased or ESV decreases.
  5. The more cardiac muscle is stretched within physiological limits, the more Forcibly it will contract. So, Increasing volumes of blood in ventricles i.e. EDV, increase the stretch in cardiac muscles fibres & thus the Force generated by ventricular wall contraction.
  6. Greater stretch means more blood volume is pumped out ( increase in Stroke Volume), up to physical limits.
  7. To summarize: More EDV- more Stretch in Cardiac Muscle- More Force of contraction in myocardium- More stroke volume.
5 months ago
Think You Can Provide A Better Answer ?
Answer & Earn Cool Goodies

Get Extra Rs. 3,180 off

COUPON CODE: SELF20


Course Features

  • 728 Video Lectures
  • Revision Notes
  • Previous Year Papers
  • Mind Map
  • Study Planner
  • NCERT Solutions
  • Discussion Forum
  • Test paper with Video Solution


Course Features

  • 50 Video Lectures
  • Revision Notes
  • Test paper with Video Solution
  • Mind Map
  • Study Planner
  • NCERT Solutions
  • Discussion Forum
  • Previous Year Exam Questions


Get Extra Rs. 254 off

COUPON CODE: SELF20

Ask Experts

Have any Question? Ask Experts

Post Question

 
 
Answer ‘n’ Earn
Attractive Gift
Vouchers
To Win!!! Click Here for details