Heart and Mediastinum Practical 1.2.17

Question 1

In the right atrium:

Answer 1

In the right atrium: Musculi pectinati Crista terminalis
Sino-atrial node (position) Fossa ovalis
Entrance of coronary sinus Entrance of SVC and IVC

Question 2

In the right ventricle:

Answer 2

In the right ventricle: Tricuspid valve

Chordae tendineae Papillary muscles

Trabeculae carneae
Pulmonary valve

Question 3

In the left atrium:

Answer 3

In the left atrium:

Left atrial side of fossa ovalis

Smooth internal walls
Left auricular appendage Entrance of pulmonary veins

Question 4

In the left ventricle:

Answer 4

In the left ventricle:
Mitral valve

Chordae tendineae
Papillary muscles

Aortic valve
interventricular septum

Question 5

difference between left and right ventricle

Answer 5

left: thicker walls, longer conical cavity, larger papillary muscle, chordae tendineae attached to 2 valve cups

right: thinner walls, shorter conical cavity, smaller papillary muscles, chordae tendineae attached to 3 valve cusps