Blood pressure, Biology

Assignment Help:

An adequate level of pressure is needed in the arteries to keep the blood flowing through the cardiovascular system. The chief determinant of arterial pressure is the volume of blood in the arteries and the important determinants of this are the cardiac output and the peripheral vascular resistance. The resistance offered by the arterioles accounts for almost half the total resistance in the systemic circulation. The muscle in the arterial wall allows them to constrict or dilate. When they constrict, the resistance increases and the blood pressure increases. The vasomotor centre in the medulla when stimulated sends impulses via  the sympathetic to the smooth muscle in the arteries, arterioles and veins which results in their constriction.


Related Discussions:- Blood pressure

Does thermal inversion occur in the winter or in the summer, Does thermal i...

Does thermal inversion occur in the winter or in the summer? Pollutant low altitude thermal inversion happens in the winter. In this period of the year the sun heats the soil l

Malignant catarrhal fever (mcf), Malignant catarrhal fever (MCF) Malig...

Malignant catarrhal fever (MCF) Malignant catarrhal fever is invariably fatal generalized lymphoproliferative disease of cattle and sometimes of wild ruminants. It is common i

Argon, will argon tend to form bonds with other elements?

will argon tend to form bonds with other elements?

Determine the effect of drug on the blood pressure of rats, A scientist wan...

A scientist wanted to study the effect of a drug on the blood pressure of rats. She set up an experiment in which the experimental group consisted of rats that were injected with a

Products of cleavage - morula and blastula, Products of Cleavage (Morula an...

Products of Cleavage (Morula and blastula) In several cases, the blastomeres in early cleaving stages tend to presume spherical shape like that of the egg earlier than cleava

Determine about the halstead''s method, Determine about the Halstead's meth...

Determine about the Halstead's method Reitan adopted Halstead's methods and various test procedures and with them established a laboratory at the University of Indiana. He supp

Homestasis, why does an organism internal environment change

why does an organism internal environment change

Explain heterologous and homologous immunoglobulins, Q. What is the differe...

Q. What is the difference between heterologous and homologous immunoglobulins? Homologous immunoglobulin is the human from the same species immunoglobulin and In case of inocul

Objectives of diabetes counselling, Objectives of Diabetes Counselling    ...

Objectives of Diabetes Counselling      1.  Facilitating decision to start treatment and change life style 2.  Providing psychological, social and emotional support for a.

What is biological magnification, a) What is biological magnification? ...

a) What is biological magnification? b) Describe how DDT as a water pollutant undergoes biological magnification?

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