Ch. 18 Module 1: Section 18.01 Dynamic Study Module

The superior chambers of the heart are called the __________.

atria

The vessels that carry oxygen to the myocardium are called __________.

coronary arteries

Which of the following structures lies on the outside surface of the heart and is an integral part of the heart wall?

The epicardium

Guided by powerful signaling molecules, the human heart develops from __________.

mesoderm

The chamber of the heart that takes up the most mass is the_______.

left ventricle

Identify the pericardial structure indicated by "B."

Parietal layer of serous pericardium

Identify the correct sequence of blood flow through the chambers of the heart.

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

Which of the following statements is not true about the shape, position, and location of the heart?

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 left ventricle

Match the following structure with its description: Serous pericardium.

Thin, slippery, two-layered membrane

The endocardium is composed of __________.

simple squamous epithelium

Identify the pericardial structure indicated by "E."

Myocardium

The lining of the heart chambers is called the __________.

endocardium

Identify the pericardial structure indicated by "C."

Pericardial cavity

The trabeculae carneae are located in the __________.

ventricles

Identify the pericardial structure indicated by "F."

Endocardium

Identify the pericardial structure indicated by "D."

Epicardium

Which is the correct sequence of layers in the heart wall, starting with the outer layer?

Epicardium, myocardium, endocardium

Identify the pericardial structure indicated by "A."

Fibrous pericardium

Match the following structure with its description: Endocardium.

Glistening white sheet of endothelium lining the inside of the heart

Match the following structure with its description: Epicardium.

Inner layer of pericardium (called the visceral layer)

Which of the following is not a role of the pericardium?

It facilitates heart contraction.

Match the following structure with its description: Fibrous pericardium.

Loosely fitting superficial part of the sac enclosing the heart

Match the following structure with its description: Myocardium.

Middle layer of the heart, composed mainly of cardiac muscle

The interventricular septum forms a dividing wall between the __________.

left and right ventricles

The inner lining of the fibrous pericardium is formed by the __________.

parietal layer of serous pericardium