Morphology of the Heart
Lanedra Buckner
Kaplan University
HS130-04
Unit 2, Seminar Option 2
April 27, 2014
Morphology of the Heart
The heart pumps blood through the body. It is the focal point of the circulatory system. This system is made up of a complex system of blood vessels, such as arteries, veins, and capillaries (What is the Heart, 2011). Arteries and arterioles dispense blood from the heart to capillaries in all parts of the body. By squeezing or stretching, arterioles help keep arterial blood pressure at a normal level (Thibodeau). An electrical system controls the heart by using signals to contract the heart's walls. When the walls contract, blood is pumped into the circulatory system. Inlet and outlet valves in the heart chambers guarantee that blood flows in the right direction. Without the heart's pumping action, blood can't move throughout the body (What is the Heart, 2011). A healthy heart supplies the body with the correct volume of blood at the rate needed to work well. If disease or injury deteriorates the heart, the body's organs won't receive enough blood to work properly. The blood transports the oxygen and nutrients that the organs need to work well (What is the Heart, 2011).
Blood pressure can be controlled through homeostasis. Homeostasis deters organs from exercising so much, thus preventing disturbance to metabolism and other physiological conditions of the body (Flint, n.d.). There are a variety of factors that must be taken into account in order to manage homeostasis through regulating blood pressure. They are heart rate, water balance, respiratory rate, detoxification and blood sugar level (Flint, n.d.).
References
Flint, D. (n.d.). Homeostasis & Blood Pressure. Retrieved April 27, 2014, from eHow: http://www.ehow.com/facts_6067550_homeostasis-blood-pressure.html
Thibodeau, G. a. (n.d.). Structure and Function of the Body. Mosby Elsevier. Retrieved April 27, 2014
What is the Heart. (2011, November...