A.Body cavities like blood vessels, peritonium, Bowmann’s capsule etc.
B.Trachea, large bronchi, epididymis etc.
C.Oesophagus, anal canal, vagina etc.
D.All of these
A.Body cavities like blood vessels, peritonium, Bowmann’s capsule etc.
B.Trachea, large bronchi, epididymis etc.
C.Oesophagus, anal canal, vagina etc.
D.All of these