Contractility, Biology

Assignment Help:

Myocardial contractility is mostly dependent on the level of sympathetic nerve activity and is also increased by circulating catecholamines and inotropic drugs like dopamine and dobutamine. With increased contractility there is an increased oxygen demand which is out of proportion to the extra work performed. These factors become critical when there is a decrease in oxygen supply as with coronary artery disease. 


Related Discussions:- Contractility

Explain insect resistant crops - evolutionary, Insect resistant crops (IRC)...

Insect resistant crops (IRC) Insects are a natural selection pressure so plants resistant to certain insects could have an evolutionary advantage (in natural environments)

Theory of evolution and its rival theories, what is the problem that the th...

what is the problem that the theory of evolution and its rival theories try to solve?

Energy can be created from nothing, Which of the following is true of energ...

Which of the following is true of energy? a. It can be transferred from one form to another with 100 percent efficiency. b. It can be created from nothing. c. It can be stored i

Why is ridge mapping required, Why is ridge mapping required and what is it...

Why is ridge mapping required and what is its alternative The selection of the implant diameter apart from the mesiodistal space available also depends on the buccolingual widt

Define factorial method to calculate nitrogen requirements, Define Factoria...

Define Factorial method to Calculate Nitrogen Requirements? The nitrogen requirements have been calculated by a factorial method suggested by different expert groups, described

New Technology, What is the best microscope to get a detailed view of the p...

What is the best microscope to get a detailed view of the parts inside of a preserved plant cell

State the layers of retina, State the Layers of retina The retina is c...

State the Layers of retina The retina is coil~posed of ten layers: a) Pigmented epithelium (outermost layer), b) Neusoepithelium, rods and cones (photoreceptors), c) Exte

Mechanism of cleavage, Mechanism of Cleavage Such as the mitotic divi...

Mechanism of Cleavage Such as the mitotic division in any cell, cleavage is the result of two events: mitotic nuclear division (Karyokinesis) followed via cytoplasmic divisio

Extended point within pulp chamber-endodontics principles, Extended point w...

Extended point within pulp chamber: Gripping action: -    Steglitz forceps or pin pilers. -    Access cavity flooded with chloroform to dissolve the sealer. -    Grasp the

How different is the amphibian heart from the fish heart, Q How different i...

Q How different is the amphibian heart from the fish heart? The fish heart has only two chambers, a ventricle and an atrium, and the blood that comes to it is purely venous.

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