18.1

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Identify the pericardial structure indicated by "E." Parietal layer of serous pericardium Pericardial cavity Myocardium Fibrous pericardium Epicardium Endocardium

Myocardium

Identify the pericardial structure indicated by "B." Fibrous pericardium Parietal layer of serous pericardium Myocardium Endocardium Epicardium Pericardial cavity

Parietal layer of serous pericardium

Identify the pericardial structure indicated by "C." Myocardium Epicardium Parietal layer of serous pericardium Endocardium Pericardial cavity Fibrous pericardium

Pericardial cavity

Identify the correct sequence of blood flow through the chambers of the heart. Lungs, right ventricle, left ventricle, right atrium, left atrium Right ventricle, left ventricle, left atrium, lungs, right atrium Left ventricle, left atrium, lungs, right ventricle, right atrium Left atrium, left ventricle, right ventricle, right atrium, lungs Right atrium, right ventricle, lungs, left atrium, left ventricle

Right atrium, right ventricle, lungs, left atrium, left ventricle

Which of the following structures lies on the outside surface of the heart and is an integral part of the heart wall? The pericardial sac The parietal layer of serous pericardium The epicardium The fibrous pericardium

The epicardium

Which of the following statements is not true about the shape, position, and location of the heart? The heart is located between the two lungs within the mediastinum. Approximately two-thirds of the heart is found to the left of the midline. The heart is enclosed in a double-layered sac called the pleural membrane. The heart is shaped like a cone with the base facing the right shoulder.

The heart is enclosed in a double-layered sac called the pleural membrane.

What part of the heart is considered the systemic circuit pump? The right ventricle The right atrium The left atrium The left ventricle

The left ventricle

Match the following structure with its description: Serous pericardium. Loosely fitting superficial part of the sac enclosing the heart Middle layer of the heart, composed mainly of cardiac muscle Glistening white sheet of endothelium lining the inside of the heart Thin, slippery, two-layered membrane Inner layer of pericardium (called the visceral layer)

Thin, slippery, two-layered membrane

Guided by powerful signaling molecules, the human heart develops from __________. ectoderm endoderm cardioderm mesoderm

mesoderm

The trabeculae carneae are located in the __________. epicardium myocardium atria ventricles

ventricles

The lining of the heart chambers is called the __________. endocardium myocardium epicardium pericardium

endocardium

Identify the pericardial structure indicated by "F." Parietal layer of serous pericardium Pericardial cavity Epicardium Fibrous pericardium Endocardium Myocardium

Endocardium

Identify the pericardial structure indicated by "D." Fibrous pericardium Myocardium Epicardium Endocardium Parietal layer of serous pericardium Pericardial cavity

Epicardium

Which is the correct sequence of layers in the heart wall, starting with the outer layer? Myocardium, pericardium, endocardium Parietal pericardium, myocardium, endocardium Endocardium, epicardium, myocardium Endocardium, smooth muscle, epicardium Epicardium, myocardium, endocardium

Epicardium, myocardium, endocardium

Identify the pericardial structure indicated by "A." Fibrous pericardium Pericardial cavity Endocardium Myocardium Epicardium Parietal layer of serous pericardium

Fibrous pericardium

Match the following structure with its description: Endocardium. Middle layer of the heart, composed mainly of cardiac muscle Inner layer of pericardium (called the visceral layer) Loosely fitting superficial part of the sac enclosing the heart Glistening white sheet of endothelium lining the inside of the heart Thin, slippery, two-layer membrane

Glistening white sheet of endothelium lining the inside of the heart

Match the following structure with its description: Epicardium. Loosely fitting superficial part of the sac enclosing the heart Glistening white sheet of endothelium lining the inside of the heart Middle layer of the heart, composed mainly of cardiac muscle Inner layer of pericardium (called the visceral layer) Thin, slippery, two-layer membrane

Inner layer of pericardium (called the visceral layer)

Match the following structure with its description: Epicardium. Thin, slippery, two-layer membrane Glistening white sheet of endothelium lining the inside of the heart Inner layer of pericardium (called the visceral layer) Middle layer of the heart, composed mainly of cardiac muscle Loosely fitting superficial part of the sac enclosing the heart

Inner layer of pericardium (called the visceral layer)

Which of the following is not a role of the pericardium? It prevents the heart from overfilling with blood. It facilitates heart contraction. It anchors the heart to surrounding structures. It protects the heart.

It facilitates heart contraction.

Match the following structure with its description: Fibrous pericardium. Middle layer of the heart, composed mainly of cardiac muscle Loosely fitting superficial part of the sac enclosing the heart Glistening white sheet of endothelium lining the inside of the heart Inner layer of pericardium (called the visceral layer) Thin, slippery, two-layer membrane

Loosely fitting superficial part of the sac enclosing the heart

Match the following structure with its description: Myocardium. Thin, slippery, two-layer membrane Loosely fitting superficial part of the sac enclosing the heart Inner layer of pericardium (called the visceral layer) Middle layer of the heart, composed mainly of cardiac muscle Glistening white sheet of endothelium lining the inside of the heart

Middle layer of the heart, composed mainly of cardiac muscle

The superior chambers of the heart are called the __________. coronary chambers cavae atria ventricles

atria

The vessels that carry oxygen to the myocardium are called __________. aortic arteries pulmonary arteries coronary veins coronary arteries pulmonary veins

coronary arteries

The interventricular septum forms a dividing wall between the __________. left atrium and left ventricle right atrium and right ventricle right ventricle and left atrium left atrium and right atrium left and right ventricles

left and right ventricles

The walls of the __________ are thicker than the walls of any other heart chamber. right atrium left atrium right ventricle left ventricle

left ventricle

The inner lining of the fibrous pericardium is formed by the __________. parietal layer of serous pericardium endocardium myocardium epicardium diaphragm pericardial cavity

parietal layer of serous pericardium

The endocardium is composed of __________. cardiac muscle cells squamous epithelium cuboidal epithelium columnar epithelium

squamous epithelium


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