Long refractory period - properties of a beating heart, Science

Assignment Help:

Long Refractory period - Properties of a Beating Heart

Refractory period is the period during which a stimulus fails to evoke a response. In a beating heart, if an external stimulus is applied during contraction, there is no response irrespective of how strong the stimulus is. This is because the cardiac muscle is refractory throughout the contraction.  The reason why cardiac muscle has a long refractory period is t3at the duration of its action potential is almost as long as that of its mechanical activity. The fact that the heart sleeps and does not reacts when exposed to day-to-day exciting and stressful situations without missing a heartbeat every now and then ensures its smooth functioning hundred long years.


Related Discussions:- Long refractory period - properties of a beating heart

Explain in brief about the crop rotation, Explain in brief about the Crop R...

Explain in brief about the Crop Rotation 1.  Deep rooted legumes may be grown periodically over all fields. 2.  There is more continuous vegetative cover and probably less e

Assessment for Early Childhood major, Assessment is the process of collecti...

Assessment is the process of collecting information to find out what students are learning. As we have examined different instructional models throughout this course we have learne

Phylum annelida, what is ment by general organization in phylum annelida

what is ment by general organization in phylum annelida

To assemble a continuity testing device, TO ASSEMBLE A CONTINUITY TESTING D...

TO ASSEMBLE A CONTINUITY TESTING DEVICE AND TO USE IT FOR CHECKING THE EFFECTIVENESS OF EARTHING IN AN APPLIANCE Here, you read about earthing as an essential requireme

Normal limits and factor scales, Factor Scales Mr. X is not overtly ex...

Factor Scales Mr. X is not overtly expressing any form of generalized distress or negative emotionality; he is extroverted and verbally fluent (A= 39, PSYC=40, NEGE=43). Howev

Define age related changes in alimentary canal, Define age related changes ...

Define age related changes in Alimentary canal Advancement in ageing leads to loss of teeth. In this process, first the enamel changes then dentine and cement. Thus their masti

Personal protective devices, Personal Protective Devices : We shall now di...

Personal Protective Devices : We shall now discuss the details of protective devices required for safety in a laboratory. The aim of protective devices is to minimise the risk of

Why are halogens so reactive, Question 1 Discuss the efforts introduced t...

Question 1 Discuss the efforts introduced to manage of air and water pollution Question 2 Comment briefly on agricultural practices in Arid zone Question 3 Anal

Explain the histotoxic hypoxia, Explain the Histotoxic Hypoxia It is a ...

Explain the Histotoxic Hypoxia It is a type of hypoxia in which due to the action of a toxic agent oxidative enzymes are poisoned hence the tissue cells cannot utilize oxygen s

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