Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
The cardiac output is the volume of blood pumped from the heart every minute. It is obtained by the volume pumped with each beat (stroke volume) multiplied by the heart rate. The cardiac output increases during exercise and falls in the common type of heart failure. The stroke volume depends in part on the amount of blood in the ventricule at the end of diastole. This determines the degree of stretch of the myocardial fibre. The greater the stretch (within limits) the stronger the force of contraction and the greater the stroke volume (Starlings law of the heart).
Control of the heart rate depends on the ratio of the sympathetic (increases) and parasympathetic (decreases) impulses to the sino atrial node which is the cardiac pacemaker. Receptors sensitive to pressure are located in the carotid sinus and the wall of the arch of the aorta.When the carotid sinus detects a sudden rise in arterial pressure, impulses pass from the carotid baroreceptors to the cardiac control centre in the medulla and impulses sent through the parasympathetic system reduce the heart rate. Similar effects result from the aortic baroreceptors as well. If the blood pressure drops the heart rate is reflexly increased. Various other reflexes from anger, fear, pain, temperature, etc. also increase the heart rate.
Q. Define the term Behaviour Change Communication? Behaviour Change Communication (BCC) is an interactive process with communities to develop specific messages and methods usin
one disadvantage of the pyramid if a tree and grass each count as one organism
why is the phylum annelida in trouble?
Theoretically you can build a light microscope with unlimited magnification, but can you build a light microscope with unlimited resolution? Why or why not? (Hint: what really cont
Q. Can you explain Tannins? Tannins are another class of compounds which interfere with the absorption of minerals like iron and reduce the availability of proteins by bindin
Q. What is the contraceptive mechanism of the IUD? The IUD (intrauterine device) is a piece of plastic coated with copper that is put-in within the uterus by a doctor. Coppe
Q. Illustrate Temporal digital subtraction radiography? Temporal digital subtraction radiography (SR) is a radiographic technique that enable two radiographs made at different
State the term supply shortly. Supply: Potential firms or businesses into the market which are willing and capable to supply various quantities of a good or service at a
How Infections and Infestations cause PEM? Childhood infections (viral/bacterial) and parasitic infestations are almost always associated with PEM. These cause anorexia (loss o
STRUCTURE Mitochondria is a double unit membranous structure. It consists of outer & inner membranes. Outer membrane is smooth & made up of lipoproteins. It bears m
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!
whatsapp: +91-977-207-8620
Phone: +91-977-207-8620
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd