Everything about hearts

Everything about hearts - tendinae Valves The second kind...

Info iconThis preview shows pages 1–11. Sign up to view the full content.

View Full Document Right Arrow Icon
EVERYTHING YOU EVER WANTED TO KNOW ABOUT HEARTS
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Anatomy of the Heart The heart is a hollow muscle. It is located on the left side of your chest, about the size of your clenched fist It is divided into four sections called chambers Two chambers are on the left and right side. Each side has an upper and lower chamber.
Background image of page 2
Chambers of the Heart
Background image of page 3

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Chambers of the Heart The right upper receives blood from the body. The right lower pumps blood to the lungs. The left upper receives blood from the lungs. The left lower pumps blood to the rest of the body.
Background image of page 4
Blood flow in the heart
Background image of page 5

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Flow around the body
Background image of page 6
Valves Valves are flaps of tissue that stop blood flowing backwards There are two kinds of valves in the heart. The first kind is the massive valves between the atria and the ventricles, the atrio-ventricular valves , (AV valves) that prevent blood in the ventricles from flowing back into the atria. The flaps of these valves are attached to the walls of the ventricles by tendons – chordae
Background image of page 7

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Background image of page 8
Background image of page 9

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Background image of page 10
Background image of page 11
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: tendinae Valves The second kind of valve is pocket shaped flaps of tissue called the semilunar (half moon) valves They are called the pulmonary and aortic valves and found at the entrance of the pulmonary artery and aorta respectively Whats the Lub Dub? Whats the Lub Dub? The first heart sound (lub) is caused by the acceleration and deceleration of blood and a vibration of the heart at the time of the closure of the tricuspid and mitral valves. The second heart sound (dub) is caused by the same acceleration and deceleration of blood and vibrations at the time of closure of the pulmonic and aortic valves. This powerpoint was kindly donated to www.worldofteaching.com http://www.worldofteaching.com Is home to well over a thousand powerpoints submitted by teachers. This a free site. Please visit and I hope it will help in your teaching...
View Full Document

This note was uploaded on 11/23/2011 for the course BIO 100 taught by Professor Robinson during the Fall '08 term at BYU.

Page1 / 11

Everything about hearts - tendinae Valves The second kind...

This preview shows document pages 1 - 11. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online