Ch 13 - part 1 Anatomy: Semilunar Heart Valves Quiz

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The bottom of the heart is fused to the diaphragm by parts of the ______, which is a serous membrane

pericardium

The heart's movements would otherwise create friction with surrounding organs, such as the ______

lungs

The heart has four chambers, divided into atria and ______

ventricles

The walls of the ventricles are significantly thicker than the walls of the ______

atria Signup and view all the answers

The atria receive blood from the vessels, and the ventricles pump blood from the ______

heart Signup and view all the answers

The ______ is the thickest layer of cardiac muscle tissue, found in the middle of the heart wall.

myocardium Signup and view all the answers

The ______ is the inside lining of the heart, and is an arrangement of simple squamous epithelial tissue.

endocardium Signup and view all the answers

The ______ forms the top layer of the heart and is also formed from simple squamous epithelial tissue.

epicardium Signup and view all the answers

The ______ valves open when ventricular pressure is greater than arterial pressure and close when the ventricles relax and stop contracting.

semilunar Signup and view all the answers

The ______ is a 'sac' that sits around the heart and helps to ensure that the heart stays in position within the mediastinum.

pericardium Signup and view all the answers

The atrioventricular valves are flops of ______ tissue that separate the atrium and ventricle on each side of the heart.

connective Signup and view all the answers

The semilunar valves are thicker ______ tissues that separate the ventricles from the arteries.

connective Signup and view all the answers

The AV valve on the left side of the heart has two flaps (cusps), so it is referred to as the ______ or mitral valve.

bicuspid Signup and view all the answers

The valve on the right side of the heart is the ______ valve.

tricuspid Signup and view all the answers

The heart's movements would otherwise create friction with surrounding organs, such as the ______.

pericardium Signup and view all the answers

The ______ pericardium is the layer that is directly adhered to the heart.

visceral Signup and view all the answers

The ______ pericardium is the layer that is touching the body wall.

parietal Signup and view all the answers

The ______ pericardium helps the heart to stay in place in the mediastinum.

fibrous Signup and view all the answers

Blood flows from the ______ to the ventricles with the help of gravity.