Heart: Fibrous Skeleton

Question 1

The septal wall divides the heart into what?

Answer 1

Halves (right and left)

Question 2

What is the part of the septal wall that divide the two atria?

Answer 2

Interatrial septum

Question 3

What is the small portion above the septal cusp of the tricuspid valve and below the anterior cusp of the mitral valve?

Answer 3

Atrioventricular Septum

Question 4

Which part of the septum is thin, smooth and fibrous in nature?

Answer 4

Membranous Intraventricular Septum

Question 5

Which part of the septum is very thick?

Answer 5

Muscular interventricular septum

Question 6

What forms the foundation of each of the heart valves?

Answer 6

Fibrous Rings

Question 7

What connects the fibrous rings together and represent the strongest part of the fibrous skeleton?

Answer 7

Left and Right Fibrous Trigones

Question 8

What are the functions of the fibrous skeleton of the heart?

Answer 8

1) Provide a structural framework of the valves

2) Insulate the electrical impulses of the conduction system