18.01 Questions
Mesoderm
Guided by powerful signaling molecules, the human heart develops from __________.
Fibrous pericardium
Identify A
Parietal layer of serous pericardium
Identify B
Pericardial cavity
Identify C
Epicardium
Identify D
Myocardium
Identify E
Endocardium
Identify F
Simple squamous epithelium
The endocardium is composed of
b. Glistening white sheet of endothelium lining on the inside of the heart
The endocardium is? a. Thin, slipper, two-layer membrane b. Inner layer of the pericardium ( called the visceral layer) c. Middler layer of the heart, composed mainly of cardiac muscle d. Loosely fitting superficial part of the sac enclosing the heart
b. Loosely fitting superficial part of the sac enclosing the heart
The fibrous pericardium a. Glistening white sheet of endothelium lining on the inside of the heart b. Loosely fitting superficial part of the sac enclosing the heart c. Thin, slippery, two-layer membrane d. Middle layer of the heart, composed mainly of cardiac muscle e. Inner layer of the pericardium ( aka visceral layer)
Parietal layer of serous pericardium
The inner lining of the fibrous pericardium is formed by the
Epicardium, myocardium, endocardium
What is the sequence of layers in the heart wall starting with the outer layer
Epicardium
Which structure lies on the outside surface of the heart and is an integral part of the heart wall?
Middle layer of the heart composed mainly of cardiac muscle
Describe the myocardium
Thin, slippery, two-layered membrane
Describe the serious pericardium layer
Thin, slippery, two-layered membrane
Describe the serous pericardium
a. Inner layer of the pericardium ( called the visceral layer)
Match the following structure with its description: Epicardium. a. Inner layer of pericardium (called the visceral layer) b. Loosely fitting superficial part of the sac enclosing the heart c. Middle layer of the heart, composed mainly of cardiac muscle d. Thin, slippery, two-layer membrane e. Glistening white sheet of endothelium lining on the inside of the heart
Endocardium
The lining of the heart chambers is called the?
Coronary arteries
The vessels that carry O2 to the myocardium are called?
Coronary arteries
The vessels that carry oxygen to the myocardium are called __________.
True
True or false, the pericardium anchors the heart to surrounding structures
False
True or false, the pericardium facilitates heart contractions
True
True or false, the pericardium prevents the heart from overfilling with blood
True
True or false, the pericardium protects the heart
True
True or false? Approximately two-thirds of the heart is found to the left of the midline.
False
True or false? The heart is enclosed in a double-layered sac called the pleural membrane.
True
True or false? The heart is located between the two lungs within the mediastinum.
True
true or false? The heart is shaped like a cone with the base facing the right shoulder.
