11 Questions
Which structure forms an electrical 'insulator' in the heart?
The fibrous skeleton
The fibrous skeleton of the heart prevents the orifices of the valves from:
Overly distended
What demarcates the atria from the ventricles externally?
The coronary sulcus
Which structure provides attachment for the leaflets and cusps of the valves?
The fibrous skeleton
What is the shape of the heart in three dimensions?
A tipped-over pyramid
How many fibrous rings make up the fibrous skeleton of the heart?
Four
Which structure forms connections between the fibrous rings?
The fibrous trigone
Which sulci demarcate the right and left ventricles from each other?
Anterior and posterior interventricular sulci
What does the fibrous skeleton of the heart provide attachment for?
The myocardium
The fibrous skeleton of the heart plays a crucial role in:
Supporting cardiac muscle contraction
What is the shape of the heart when viewed from an anterior or posterior view?
Trapezoidal
Test your knowledge on the complex fibrous skeleton of the heart and its role in anchoring cardiac muscle fibers.
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