What do you mean by contractility, Mechanical Engineering

Assignment Help:

Q. What do you mean by Contractility?

Heart being a muscular pump the ability to eject blood depends on the ability to contract. Another factor is the resistance in the vascular bed through which the heart must pump. The resistance in the lungs is so low in the healthy subject that it plays very little role as a limiting factor in exercise.

Resistance is the product of blood flow multiplied by the blood pressure. When the heart pumps more blood, the cardiac output increases more than the resistance drops therefore, there is a modest increase in systolic blood pressure during exercise in healthy individuals.


Related Discussions:- What do you mean by contractility

Cases of equilibrium , Cases of equilibrium: What are cases of equili...

Cases of equilibrium: What are cases of equilibrium? Sol.: As a result of the acting forces, the body may be having one of the following states: (1) The body can mo

Evaluate resultant of the system - mechanics, Evaluate resultant of the sys...

Evaluate resultant of the system: Q: Figure given below shows two vertical forces and couple of moment 2000 Nm acts on horizontal rod, which is fixed at end A .  Determin

Metals and melting practices - ladle, Metals and Melting Practices - Ladle,...

Metals and Melting Practices - Ladle, Limestone,Ore,Sinter Ladle : A big bucket utilized as a carrier for molten metal. Limestone : A Blast Furnace raw material that elimi

Determine the increase in pressure in vessel, Determine the increase in pre...

Determine the increase in pressure in vessel: A thin spherical vessel of diameter 750 mm & wall thickness 8 mm is filled through water at atmospheric pressure. Determine the i

Magnetic device with moving iron element , A singly excited magnetic device...

A singly excited magnetic device with a moving iron element is illustrated in the figure below. g = 0.10 mm d = 2.0 cm b = 3.0 cm Assume the mmf in the iron and th

Instantaneous center method, Linear velocity of links using Instantaneous c...

Linear velocity of links using Instantaneous center method

Formula for maximum power transmitted by belt, Formula for maximum power tr...

Formula for maximum power transmitted by belt: Derive formula for maximum power transmitted by belt when centrifugal tension is considered. Sol: Let T 1  = Tension on

Determine the number of bolts required, The following specification is used...

The following specification is used for the design of a flanged coupling between two coaxial shafts: Speed: 650rpm Power transmitted: 550 kW Bolt Diameter: 12 mm Pit

Polygon of forces lab, please explain more about polygon of forces lab such...

please explain more about polygon of forces lab such as observation, theory and others.

Nominal stress and true stress, Nominal Stress and True Stress: Nomina...

Nominal Stress and True Stress: Nominal stress is the ratio of force per initial cross sectional area (original area of cross section). Nominal stress = Force / initial ar

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd