Heart Anatomy

Question 1

Describe Aortic sinus

Answer 1

Sacs found at the base of the ascending aorta, Prevents aortic valve cusps, from sticking to the aorta also origin at the right and left coronary arteries

Question 2

Septum’s?

Answer 2

There are inreratrial Septum which puts a barrier between the left and right atriums.
There is also the inter-ventricle Septum which puts a barrier between the left and right ventricles.

Question 3

what and where is the Foreman oval

Answer 3

The foreman oval Is in the fetus heart It acts as a channel between the left and right atriums that allows blood flow

Question 4

What is the Fossa avails

Answer 4

The fossa avails Is a pale colour depression that remains after birth it takes place of the foreman oval.

Question 5

What are the valves of the heart

Answer 5

There is four of them there are two cuspid valves (atrioventricular valve) they are between the atrium in the ventricles and they contain two or three flaps. Then there are two semilunar valve’s they border the aorta and the pulmonary trunk.

Question 6

what and where is the Tricuspid

Answer 6

The tricuspid is in the right atrium and it separates the right atrium from the right ventricle

Question 7

What’s within the ventricles

Answer 7

Within the ventricles are Chordae tendineae They are fibrous strings and are also known as heartstrings which comes off papillary muscles.They prevent the cusp from inverting back into the atrium.

Question 8

Functions of the hearts connective tissue

Answer 8

To add strength and prevent over expansion of the heart it also provides elasticity to help return the heart to its normal size. Also it distributes forces of contractions as well supports cardiac muscle cells.

Question 9

Fibrous cardiac skeleton

Answer 9

Important for stabilizing the valves also electrically insulates the ventricle cells from the atrial cells. They are dense irregular connective tissue and also the rigid framework for attachment of cardiac cells arranged in spiral bundles around the heart chambers.

Question 10

The pathway of blood

Answer 10

Right atrium receives blood from the superior And inferior vena cava as well as coronary sinus. This blood is D oxygenated then pushed through the tricuspid into the right ventricle. Blood then gets pumped to the pulmonary trunk and branches into the left and right pulmonary arteries which then gets oxygenated at the lungs. Blood returns to the left atrium oxygenated. Pump through the bicuspid into the right ventricle then pushed into the aorta.