[DOC] [TLE] Anatomy and Function of the Heart Valves [PAR] The heart consists of four chambers, two atria (upper chambers) and two 
ventricles (lower chambers). There is ... These valves are actual flaps that are 
located on each end of the two ventricles (lower chambers of the heart). They act 
... Each valve actually has three flaps, except the mitral valve, which has two flaps
. The four... [DOC] [TLE] Chambers of the Heart - Boundless [PAR] The two atria receive blood into the heart and the two ventricles pump blood into 
circulation. ... The heart has four chambers through which blood flows: two sets of 
each type of ... The venous blood entering the heart has a very low pressure 
compared to ... blood: Appears in these related concepts: Anatomy of the 
Pancreas,... [DOC] [TLE] Chambers and valves of the heart - Mayo Clinic [PAR] A normal heart has two upper and two lower chambers. The upper chambers, the 
right and left atria, receive incoming blood. The lower chambers, the more... [DOC] [TLE] Chambers of the Heart - WebMD [PAR] comThe heart has four chambers: two atria and two ventricles. The right atrium 
receives oxygen - poor blood from the body and pumps it to the right ventricle. [DOC] [TLE] Anatomy of the Heart - Texas Heart Institute Heart Information Center [PAR] Pictures of the human heart showing chambers, valves, conduction system and ... 
The New Project Heart - heart anatomy illustrations and animations for grades K-
6. ... A coating of fluid separates the two layers of membrane, letting the heart ... 
left and right atria, and the lower chambers are called the left and right ventricles. [DOC] [TLE] How the Heart Works - CardioSmart [PAR] The heart is divided into four chambers or "rooms". ... Do you wonder why each 
side of the heart has two pumping chambers (atrium and ventricle)? ... These 
chords or strings are known as chordae tendineae (pronounced cord-EYE TEND-
in-eye). ... On the other hand, oxygen-poor blood from the lower portion of the 
body... [DOC] [TLE] Anatomy and Function of the Heart Valves | Johns Hopkins Medicine ... [PAR] The heart consists of 4 chambers, 2 atria (upper chambers) and 2 ventricles (
lower chambers). Blood passes through a valve before leaving each chamber of 
the... [DOC] [TLE] The Human Heart  PT Direct [PAR] The chambers on the right side of the heart are the right atrium and right ventricle. 
... the pulmonary artery to the lungs for gaseous exchange (CO2 out, O2 in). ... 
The left ventricle also has a thicker muscular wall than the right ventricle, ... out of 
the ventricles through the aorta and the pulmonary arteries, these valves close to
... [DOC] [TLE] The Vertebrate Animal Heart: Unevolvable, whether Primitive or ... [PAR] Birds and mammals have 4 chambers (2 atria and 2 ventricles). ... out to the body, 
Blood pressure is low for oxygenated blood leaving the gills. 3 and 4 chambered 
hearts have a pulmonary circuit (pathways taking blood from heart to lung and 
back to heart) .... If any of these steps are missing, double circulation won't work. [DOC] [TLE] Heart ChambersThe heart is divided into four chambers. The two ... [PAR] The right atrium and left atrium are separated by a wall of tissue called the atrial 
septum. The two lower chambers are called the ventricles, and are separated into 
the right and left ... These four ... Heart ValvesThe heart has four valves. [DOC] [TLE] Patient Education - York Heart & Vascular Specialists [PAR] The normal heart has four chambers. A wall divides the heart into a right side and 
a left side. Each side of the heart is divided into two chambers. The upper 
chamber is called the atrium and the lower chamber is called the ventricle. These 
chambers ... Blood flows through these heart arteries during the heart's resting 
cycle. [DOC] [TLE] Heart - Wikipedia [PAR] The heart is a muscular organ in humans and other animals, which pumps blood 
through the ... The heart receives blood low in oxygen from

Question: The heart has 4 chambers: 2 atria & 2 of these lower chambers
Answer: ventricles