Sperm Barrier: Corona Radiata Cells #shorts

What is corona radiata?

Barrier potential .

Radiata includes

Corona radiata is derived from

Cells of corona radiata disperse just

Distinguish between :(a) Spermatogenesis and spermiogenesis .(b) Corona Radiata and zona pellucida.

which of the following statements regarding fertilization and implantation are incorrect ? I. During fertilization , a sperm first comes in contact with the corona radiata cells produced by the ovum. II. Fertilization occurs only if sperm and ovum are simultaneously transported to the ampullary region. III. Implantation occurs about 7 days after fertilization . IV. The continuous division of morula leads to the formation of zygote.

(a) Draw a diagram of the structure of a human ovum surrounded by corona radiata. Label the following parts : (i) Ovum, (ii) Plasma Membrane, (iii) Zona Pellucida (b) State the function of Zona Pellucida.

Barriers To Communications

[" Ques no."2" : Cumulus oophorous is "],[" the term used for "],[" grannulosa cells "],[" oocyte and grannulosa cells "],[" Corona radiata cells "],[" oocyte and corona radiata."]