ANATOMY of HEART II

Question 1

What type of tissues is there inbetween the ATRIA and Ventricles?

Answer 1

• Fibrous connective tissue
• It electrically separates the atria from the ventricle
• This ensures the cardiac cycles contractions are correct and ATRIA contracts before the VENTRICLE

Question 2

What are the 4 valves of the heart?

Answer 2

AV valves=
- tricuspid valve = Right av valves
- Bicuspid valve = left av valve
SEMILUNAR=
- Pulmonary = right Ventricle
- Aortic = Left ventricle

Question 3

How are AV valves closed in detail?

Answer 3

• contract of papillary muscles, pull on chordae tendinea, pulling valving close