Heart: Construction of Ventricular Walls Flashcards
1
Q
What is the cortex?
A
- outer layer of ventricle
2
Q
What are the main features of the cortex? (2)
A
- dense compact myocardium
- aerobic
3
Q
What is the coronary artery?
A
- own oxygenated blood supply to cortex
4
Q
What fish is the cortex well developed in?
A
- active fish and elasmobranchs
5
Q
What is the cortex less associated with ?
A
- sluggish fish
6
Q
Where in the ventricular walls are spongy myocardium?
A
- inner layer
7
Q
What do spongy myocardium depend on?
A
- O2 reserves and nutrients in venous blood
8
Q
Active fish have ____ hearts. what does this mean?
A
- big
- increases % of compacta (performance related)
9
Q
A
