Module 4 Exam - Requires Respondus LockDown Browser + Webcam

The circulatory system is response for which of the following functions? You Answered Supply cells with oxygen Transportation of gases Rid cells of waste Prevents loss of blood Correct Answer All the above Question 2 2 / 2 pts The pericardial cavity contains in the: Lungs Correct! Heart Descending aorta Circle of Willis Question 3 2 / 2 pts Which layer of heart is composed of the contractile cardiac muscle? Pericardium Endocardium Correct! Myocardium Mediastinal Question 4 4 / 4 pts What is the purpose of the fossa ovalis in a fetus? Your Answer: The fossa ovalis in the fetus marks the place of an opening between the atria thats present in all fetuses. It allows blood to move directly from right to left atrium, bpassing undeveloped lungs. It closes during birth so that the lungs can receive oxygen when the fetus is born. The fossa ovalis marks the place of an opening between the atria which is present in all developing fetuses. It allows fetal blood to move directly from right to left atrium, bypassing he undeveloped lungs. The fossa ovalis closes during birth so that the lungs can receive oxygen once the baby is born. Question 5 10 / 10 pts Label the figure below (A-E)