Cardiovascular System

Which of the following is in the presence of Oxygenated blood?

I. Left Ventricle

II. Right Atrium

III. Tricuspid Valve

IV. Pulmonary Vein

• I and IV only

• II and III only

• I and III only

• II and IV only

• III and IV only

Which of the following is in the presence of Deoxygenated blood?

I. Right Ventricle

II. Right Atrium

III. Bicuspid Valve

IV. Ascending Aorta

• I and IV only

• II and III only

• I and II only

• II and IV only

• III and IV only

What is indicated in green?

• Trachea

• Primary Bronchi

• Secondary Bronchi

• Tertiary Bronchi

• Bronchioles

What is indicated in green?

• Trachea

• Primary Bronchi

• Secondary Bronchi

• Tertiary Bronchi

• Bronchioles

What structure connects heart valves to the papillary muscles?

• Trabeculae Carnae

• Pectinate Muscles

• Chordae Tendinea

• Aortic Arch

Which receptor type is most influential in regulating breathing?

• O2

• CO2

• pH

• Baroreceptors

• Osmoreceptors

What is a portal system?

• The portion of a capillary bed where gas exchange occurs

• The portion of the circulatory system that goes from the heart to the lungs and back to the heart

• The portion of the circulatory system that goes from the heart to the body and back to the heart

• A portion of the circulatory system that hits two different capillary beds before returning blood to the heart

When the diaphragm contracts ...

• The thoracic cavity's volume increases and the internal pressure decreases

• The thoracic cavity's volume decreases and the internal pressure decreases

• The thoracic cavity's volume increases and the internal pressure increases

• The thoracic cavity's volume decreases and the internal pressure increases

When the diaphragm relaxes...

• The thoracic cavity's volume increases and the internal pressure decreases

• The thoracic cavity's volume decreases and the internal pressure decreases

• The thoracic cavity's volume increases and the internal pressure increases

• The thoracic cavity's volume decreases and the internal pressure increases

Which structure does a mammal's heart have that an amphibian heart does not?

• Bicuspid and tricuspid valves

• Interventricular septum

• Aortic and pulmonary valves

• SA Node

• All of the Above