Question

7. The given diagram is highly diagrammatic
representation of mammalian heart. In this diagram
(Name the parts marked 1-12.
2
11
10
12
3
9
B
(ii) What do the arrows indicate ?
(iiName the valves that guard openings in the
heart.
(iv) From where do the parts numbered 1-6 receive
blood ?
(1) Where is SAN located and what is its function ?
(vi) Name the blood vessels that enter or leave the
heart​

Answer 1

Answer:

1st answer,,,,,,,,,,,,

Explanation:

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