Circulatory system introduction - History Page

	Date/Time	Made By	Edit Note	Type	Scope
	Apr 17 2009, 7:24 PM EDT	codijune		edit	108 words added 13 words deleted
Change: includes the right atrium and ventricle, pulmonary trunk, two pulmonary arteries, and four pulmonary veins. The blood is pumped to the lungs where the gas exchange is made, and oxygenated blood is returned to the heart. The Systemic: includes the left atrium and ventricle, View changes from previous version. (Word count: 3442)
	Jul 27 2008, 8:49 PM EDT	klyoung		edit	11 words added 6 words deleted
Change: back flow into the right atrium during ventricle contraction. Right Ventricle: right inferior portion of the heart, sends blood to the pulmonary trunk. Pulmonary Valve: prevents backflowback flow of blood from the pulmonary trunk to the right ventricle during ventricular relaxation Pulmonary Trunk: a large vessel View changes from previous version. (Word count: 3344)
	Jul 24 2008, 4:06 PM EDT	jeanieh		edit	2 words added 1 word deleted
Change: following is not true about blood vessel tunics?a. They are a network of small arteries, called the vasa vasorum. b. They are found in arteries and veins. c. They have an innermost layer, and outermost layer, and a middle layer. *d. They are all correct.correct. View changes from previous version. (Word count: 3339)
	Jul 24 2008, 4:03 PM EDT	jeanieh		edit
Change: There were only format changes (bold, italics, etc.) in this version. See this version for details. (Word count: 3339)
	Jul 24 2008, 4:00 PM EDT	jeanieh		edit	4 words added 4 words deleted 1 widget deleted
Change: * OUR CIRCULATORY SYSTEM Without your being aware of it, your organ systems are working continuously to keep you alive. One of these organ systems is the circulatory system. The heart never stops beating as long as a person View changes from previous version. (Word count: 3339)
	Jul 24 2008, 3:53 PM EDT	jeanieh		edit	10 words added 5 words deleted 1 image added 1 image deleted
Change: wall),wall), have anastomoses that are so tiny that the arteries may almost be considered end arteries. Companion vessels: An artery that will travel with a corresponding vein because they supply the same body and tend to lie next to one another. Lumen: (loo'men) The View changes from previous version. (Word count: 3339)
	Jul 24 2008, 3:44 PM EDT	jeanieh		edit
Change: There were only format changes (bold, italics, etc.) in this version. See this version for details. (Word count: 3339)
	Jul 24 2008, 3:42 PM EDT	jeanieh	updated our page	edit	25 words added 14 words deleted
Change: internal Internal elastic lamina: Separates the tunica intima from the tunica media. External elastic lamina: Separates the tunica media from the tunica externa. Systematic circulation: Consists of the blood vessels that extended from the body. Pulmonary circulation: Consists of the vessels that take View changes from previous version. (Word count: 3339)
	Jul 24 2008, 3:24 PM EDT	jeanieh	changed our page	edit	25 words added 26 words deleted 1 widget deleted
Change: Can you feel it beating now? The heart pumps approximately 70 times a minute. In this period, it is able to pump around 5 liters of blood. That View changes from previous version. (Word count: 3339)
	Jul 23 2008, 6:42 PM EDT	mrichman		edit
Change: There were only format changes (bold, italics, etc.) in this version. See this version for details. (Word count: 3342)
	Jul 23 2008, 4:07 PM EDT	mariawh	continuation	edit	6 words added 5 words deleted
Change: medimedia.External elastic lamina: Separates the tunica media from the tunica externa. Systematic circulation: Consists of the blood vessels that extended from the body. Pulmonary circulation: Consists of the vessels that take the blood to and from the lungs for the purpose of gas exchange.Anastomosis: View changes from previous version. (Word count: 3342)
	Jul 23 2008, 3:49 PM EDT	mariawh	addting and changed information	edit	5 words added 8 words deleted
Change: b. muscular arteryc.*b. muscular arteryd. arteriolee. venule15. Which of the following is not true about blood vessel tunics?a. They are a network of small arteries, called the vasa vasorum.b. They are found in arteries and veins.c. They have an View changes from previous version. (Word count: 3342)
	Jul 23 2008, 3:15 PM EDT	mariawh	put color	edit	1 word added 3 words deleted
Change: of theat above12. How many different classes of blood vessels are there?a. 2b. 5c. 3d. 413. Which site is where two or more arteries (or two or more veins) merge to supply the same body region?a. end arteriesb. anastomosisc. View changes from previous version. (Word count: 3345)
	Jul 22 2008, 1:42 AM EDT	razaelas	Moved from: Units Five and Six	move	No content added or deleted.
Change: Moved by razaelas Jul 22 2008, 1:42 AM EDT
	Jul 22 2008, 1:41 AM EDT	razaelas	Moved from: Cardiac Unit (Heart)	move	No content added or deleted.
Change: Moved by razaelas Jul 22 2008, 1:41 AM EDT
	Jul 22 2008, 1:38 AM EDT	razaelas		edit	524 words added
Change: 14. Which type of vessel has a large number of smooth muscle cell layers in its tunica media as well as elastic tissue confined to an internal elastic lamina and external elastic lamina?a. elastic arteryb. muscular arteryc. muscular arteryd. arteriolee. venule15. Which View changes from previous version. (Word count: 3347)
	Jul 22 2008, 12:09 AM EDT	nickbunnellxj	added image	edit	1 image added
Change: There were only format changes (bold, italics, etc.) in this version. See this version for details. (Word count: 2818)
	Jul 21 2008, 11:52 PM EDT	nickbunnellxj	added image	edit	1 image added
Change: There were only format changes (bold, italics, etc.) in this version. See this version for details. (Word count: 2818)
	Jul 21 2008, 11:50 PM EDT	nickbunnellxj	re aranged	edit
Change: There were only format changes (bold, italics, etc.) in this version. See this version for details. (Word count: 2818)
	Jul 21 2008, 11:47 PM EDT	nickbunnellxj	added text	edit	360 words added
Change: portion of the aorta that descends from the aortic arch and continues inferiorly until it divides into the common iliac arteries. Major blood vessels involved in blood flow to and from all the body tissues General Arterial Flow Out of the Heart: The ascending aorta gives View changes from previous version. (Word count: 2818)