Portage LearningBIOD 152A&P2 Module 4

Exam 4


Questi
on 1:
Which body system supplies cells with oxygen and nutrients and carries away
waste?



Nervous system
Respiratory system
Urinary System
Circulatory System




Question 2:
The heart is contained in the cavity.



Pericardial
Pleural
Septal

Rectoperineal




Question 3:
Which layer of heart is composed of the contractile cardiac muscle?



Pericardium
Endocardium
Myocardium
Mediastinal



**CAN ALSO ASK: Which layer of heart anchors it to the diaphragm?

A. Endocardium
B. Mediastinal

,C. Myocardium

D. Pericardium

Question 4:

What is the purpose of the fossa ovalis in a fetus?




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 le# atrium, bypassing he
undeveloped lungs. The fossa ovalis closes during birth so that
the lungs can receive oxygen once the baby is born.

**CAN ALSO ASK: What is the purpose of the mitral valve?




The mitral valve controls the flow of blood from the left
atrium into the left ventricle.

, Question 5:

Label the figure below (A-E):

A:

B:

C:

D: (In blue)
E:




A: Superior
Vena Cava B:
Right Atrium
C: Tricuspid/Right AV valve D:
Left ventricle


E. Pulmonary Valve

Question 6:

Name the vessel in the figure below: (highlighted in blue, also indicated by
the arrow)