Anatomy Unit 4 Exam

Where a blood cells made?

• Spleen
• Red bone marrow

• Pancreas
• Liver

What protein makes up the majority of ethorocytes?

• Actin
• Myoglobin

• Collagen
• Hemoglobin

What element does the protein hemoglobin contains that allows it to do it's job?

How does the shape of a red blood cell enable them to do the best at their job?

• Their spherical shape allows for more oxygen storage.
• The rigid structure prevents them from deforming in blood flow.
• Their large size helps them carry more nutrients.
• The biconcave shape of red blood cells enhances their ability to transport oxygen and navigate through blood vessels.

Which layer of our heart is responsible for being able to contract?

• Myocardium

• Epicardium
• Endocardium

• Pericardium

Which side of the heart is the thickest and why?

• Both sides of the heart are equally thick.

• The left side is the thinnest due to less pressure.
• Both sides of the heart are equally thick.

  The left side of the heart is the thickest because it has to pump to the entire body.

• The right side of the heart is the thickest.

Pumps blood from heart to lungs and back again to oxygenate it again.

Key structures; right side of heart, lungs, pulmonary arteries, and pulmonary veins.

• coronary circuit

• systemic circuit

• pulmonary circuit

• gas exchange

Pumps oxygen rich blood out of heart to tissues, and then brings oxygen poor blood back to the heart.

Key structures; left side of heart, aorta, and surpior & inferior vena cava

• systemic circuit

• pulmonary circuit

• coronary circuit

Nourishes the heart with blood.

Key structures; left and right coronary arteries and cardiac veins

• systemic circuit

• coronary circuit

• pulmonary circuit

Which vessel delivers oxygen poor blood to heart from areas of body below the diaphragm?

• Superior vena cava
• Pulmonary artery
• Aorta
• Inferior vena cava