2024 /2025 | © copyright | This work may not be copied for profit gain | Excel!
BIOD 152- Module 4 Questions & 100%
Correct Answers- Latest Test | Graded A+ |
Passed
Why is the cardiovascular system a closed circulatory system?
✓ -:- the fluid contents are pumped from the heart throughout the body and back to
the heart
What are some functions of the cardiovascular system?
✓ -:- -Transportation of gases, nutrients waste
-prevents loss of blood from ruptured vessels
-helps fight off pathogens
What does the study of the cardiovascular system cover?
✓ -:- -muscular heart
-blood vessels
-blood
Where is the heart located?
1|Page | Grade A+| 2024/2025
,2024 /2025 | © copyright | This work may not be copied for profit gain | Excel!
✓ -:- Pericardial cavity within anterior portion of the mediastinum
What separates the thoracic cavity into 2 pleural cavities?
✓ -:- mediastinum
Layers of the heart
✓ -:- -pericardium: double layered, surrounded by fluid
-myocardium: thickest layer
-endocardium: continuous with blood vessels
What anchors the heart to the diaphragm?
✓ -:- pericardium
Which layer of the heart wall is the contractile layer
✓ -:- Myocardium
4 chambers of the heart
✓ -:- -right & left atrium: receiving chamber, smaller
-right & left ventricle: sending chamber, larger
2|Page | Grade A+| 2024/2025
, 2024 /2025 | © copyright | This work may not be copied for profit gain | Excel!
What separates the 4 chambers into a right and left?
✓ -:- Septum
What part of the heart is only present in fetuses?
✓ -:- Fossa Ovalis:
-opening btwn atria
-allows blood to move directly btwn atria, bypassing the lungs
What is the purpose of having valves in the heart?
✓ -:- To regulate the direction of blood flow
Which valve sends blood out of the RV and into the pulmonary trunk?
✓ -:- Pulmonary valve
Which valve sends blood out of the LV into the aorta?
✓ -:- Aortic valve
Why does the aortic valve need to be stronger?
3|Page | Grade A+| 2024/2025
BIOD 152- Module 4 Questions & 100%
Correct Answers- Latest Test | Graded A+ |
Passed
Why is the cardiovascular system a closed circulatory system?
✓ -:- the fluid contents are pumped from the heart throughout the body and back to
the heart
What are some functions of the cardiovascular system?
✓ -:- -Transportation of gases, nutrients waste
-prevents loss of blood from ruptured vessels
-helps fight off pathogens
What does the study of the cardiovascular system cover?
✓ -:- -muscular heart
-blood vessels
-blood
Where is the heart located?
1|Page | Grade A+| 2024/2025
,2024 /2025 | © copyright | This work may not be copied for profit gain | Excel!
✓ -:- Pericardial cavity within anterior portion of the mediastinum
What separates the thoracic cavity into 2 pleural cavities?
✓ -:- mediastinum
Layers of the heart
✓ -:- -pericardium: double layered, surrounded by fluid
-myocardium: thickest layer
-endocardium: continuous with blood vessels
What anchors the heart to the diaphragm?
✓ -:- pericardium
Which layer of the heart wall is the contractile layer
✓ -:- Myocardium
4 chambers of the heart
✓ -:- -right & left atrium: receiving chamber, smaller
-right & left ventricle: sending chamber, larger
2|Page | Grade A+| 2024/2025
, 2024 /2025 | © copyright | This work may not be copied for profit gain | Excel!
What separates the 4 chambers into a right and left?
✓ -:- Septum
What part of the heart is only present in fetuses?
✓ -:- Fossa Ovalis:
-opening btwn atria
-allows blood to move directly btwn atria, bypassing the lungs
What is the purpose of having valves in the heart?
✓ -:- To regulate the direction of blood flow
Which valve sends blood out of the RV and into the pulmonary trunk?
✓ -:- Pulmonary valve
Which valve sends blood out of the LV into the aorta?
✓ -:- Aortic valve
Why does the aortic valve need to be stronger?
3|Page | Grade A+| 2024/2025
