Question

please answer this!!​

Answer 1

Answer:

a)externally we can see 2 groove like structures seperating heart into four parts and heart as a whole is hollow sac like structure

b) Heart is protected by rib cage then mediastinum then epicardium

c) upper chambers are little smaller and thinner than lower ones

d) blood vessels that are coming out from heart is pulmonary Aorta and systemic Aorta

Hope this helps you