Anatomy Exam Anatomy of the Heart 3

Question 1

The coronary sinus drains into which cardiac chamber?

Accepted Answer

Right atrium

Answer

The coronary sinus, the main venous drainage of the heart, opens into the right atrium between the inferior vena cava orifice and the tricuspid valve.

Question 2

Which structure separates the right and left ventricles?

Accepted Answer

Interventricular septum

Answer

The interventricular septum is the thick muscular partition separating the right and left ventricular cavities.

Question 3

Pectinate muscles are characteristic of which cardiac chamber(s)?

Accepted Answer

Right atrium and auricles of both atria

Answer

Pectinate muscles (musculi pectinati) are ridge-like projections found in the right atrium and in the auricles (appendages) of both atria.

Question 4

What is the name of the valve between the right atrium and the right ventricle?

Accepted Answer

Tricuspid valve

Answer

The tricuspid (right atrioventricular) valve has three cusps and controls blood flow from the right atrium to the right ventricle.

Question 5

Which vessels return oxygenated blood directly to the left atrium?

Accepted Answer

Pulmonary veins

Answer

The four pulmonary veins (two from each lung) return oxygenated blood from the lungs to the left atrium.

Anatomy Exam Practice Test

Anatomy Exam Practice Test

Anatomy Exam Anatomy of the Heart 3