2.3 Heart and Pericardium

Question 1

What does the IVC bring to the right atrium?

Answer 1

De-oxyginated blood from below the diaphragm

Question 2

What does the SVC bring to the right atrium?

Answer 2

De-oxyginated blood from above the diaphragm

Question 3

What is the fossa ovalis?

Answer 3

Hole between the right atrium and the aorta that allows blood to shunt across in a fetus. The hole shuts when pressure changes with the baby’s first breathe of air

Question 4

What is the coronary sinus?

Answer 4

Venous structure where venous drainage from the heart drains to

Question 5

Musculi pectinati?

Answer 5

Muscular layer of the atrium

Question 6

Crista terminalis?

Answer 6

Ridge that sperates muscular walls

Question 7

Muscular ridges in the ventricles?

Answer 7

Trabecular carnae

Question 8

What connects anterior papillary muscle to medial wall?

Answer 8

Septomarginal band

Question 9

What structure divides the ventricles?

Answer 9

Interventricular septum

Question 10

What is the Ductus arteriosis?

Answer 10

Shunts blood from the tope of the pulmonary tunk from right ventricle to arch of aorta, remains as the ligamentum arteriosum

Question 11

What are the layers of the Pericardium?

Answer 11

Serous pericardium- Visceral and Parietal and Fibrous pericardium

Question 12

What are the layers of the heart?

Answer 12

Endocardium, Myocardium, Epicardium

Question 13

Name the two pericardial sinuses

Answer 13

Transverse and Oblique

Question 14

Is the phrenic nerve anterior or posterior to the root of the lung?

Answer 14

Anterior while the Vagus nerve is posterior

Question 15

Where does the great cardiac vein traverse and what are its branches?

Answer 15

GCV moves around the top of the left atrium with the Anterior interventricular vein coming off it. It also enters the coronary sinus posteriorly

Question 16

Where is the small cardiac vein?

Answer 16

The small cardiac vein continues from the coronary sinus around to the right atrium

Question 17

Where is the right marginal vein?

Answer 17

The right marginal vein is a branch off of the small cardiac vein coming down the right margin of the heart

Question 18

Where is the middle cardiac vein?

Answer 18

The middle cardiac vein comes down the middle posteriorly off of the coronary sinus

Question 19

Where is the anterior interventricular vein?

Answer 19

It branches off of the great cardiac vein in between the two ventricles