BIO 253 final learning outcomes Chapter 15 cardiovascular
system questions and answers 2026\2027 A+ Grade
Where is the heart located
- correct answer In the mediastinum of the thoracic cavity, superior to the diaphragm
Distinguish between the visceral pericardium and the parietal pericardium
- correct answer -Parietal pericardium: Deep to fibrous pericardium; outer layer of serous membrane.
-Visceral pericardium: Inner layer of serous membrane; attached to surface of heart; also called the
epicardium.
What is the function of the fluid in the pericardial cavity?
- correct answer reduce friction
Describe the layers of the heart wall
- correct answer -Epicardium: Outer layer; also called visceral pericardium; thin layer.
-Myocardium: Middle layer; composed of cardiac muscle tissue; thickest layer.
-Endocardium: Inner layer; forms inner lining of all heart chambers; thin layer.
Which blood vessels carry blood into the right atrium?
- correct answer Coronary sinus
superior vena cava
inferior vena cava
what is the function of the atrioventricular valves
- correct answer to prevent the back flow of blood
, Where does blood go after it leaves the right ventricle?
- correct answer pulmonary arteries
What are the functions of the skeleton of the heart?
- correct answer -Rings of dense connective tissue surround origins of pulmonary trunk and aorta, and
orifices between atria and ventricles.
-Provide attachments for heart valves and muscle fibers
-Prevent excess dilation of heart chambers during contraction
-These rings, along with other fibrous masses in the interventricular septum, make up the skeleton of
the heart.
The path of blood through the heart
- correct answer 1.superior and inferior vena cava (from the body)
2.right atrium
3.tricuspid valve
4.right ventricle
5.pulmonary valve
6. Pulmonary arteries
7.pulmonary veins (feom lungs)
8. Left atrium
9.mitral valve
10.left ventricle
11.aortic valve
12.descending aorta
Which heart chamber delivers oxygen-poor blood to the lungs?
- correct answer right ventricle
which heart chamber delivers oxygen- rich blood to the body
- correct answer left ventricle
system questions and answers 2026\2027 A+ Grade
Where is the heart located
- correct answer In the mediastinum of the thoracic cavity, superior to the diaphragm
Distinguish between the visceral pericardium and the parietal pericardium
- correct answer -Parietal pericardium: Deep to fibrous pericardium; outer layer of serous membrane.
-Visceral pericardium: Inner layer of serous membrane; attached to surface of heart; also called the
epicardium.
What is the function of the fluid in the pericardial cavity?
- correct answer reduce friction
Describe the layers of the heart wall
- correct answer -Epicardium: Outer layer; also called visceral pericardium; thin layer.
-Myocardium: Middle layer; composed of cardiac muscle tissue; thickest layer.
-Endocardium: Inner layer; forms inner lining of all heart chambers; thin layer.
Which blood vessels carry blood into the right atrium?
- correct answer Coronary sinus
superior vena cava
inferior vena cava
what is the function of the atrioventricular valves
- correct answer to prevent the back flow of blood
, Where does blood go after it leaves the right ventricle?
- correct answer pulmonary arteries
What are the functions of the skeleton of the heart?
- correct answer -Rings of dense connective tissue surround origins of pulmonary trunk and aorta, and
orifices between atria and ventricles.
-Provide attachments for heart valves and muscle fibers
-Prevent excess dilation of heart chambers during contraction
-These rings, along with other fibrous masses in the interventricular septum, make up the skeleton of
the heart.
The path of blood through the heart
- correct answer 1.superior and inferior vena cava (from the body)
2.right atrium
3.tricuspid valve
4.right ventricle
5.pulmonary valve
6. Pulmonary arteries
7.pulmonary veins (feom lungs)
8. Left atrium
9.mitral valve
10.left ventricle
11.aortic valve
12.descending aorta
Which heart chamber delivers oxygen-poor blood to the lungs?
- correct answer right ventricle
which heart chamber delivers oxygen- rich blood to the body
- correct answer left ventricle
