Advertisements
Advertisements
Question
What is placenta? What is its function?
Solution 1
Placenta is a disc-like tissue that develops between the uterus wall and the embryo. It helps the embryo in meeting its requirements from the mother.
Solution 2
Placenta is a special disc-like organ that develops in the fourth week of pregnancy. It establishes an intimate connection between the foetal membrane and the uterine wall via umbilical cord.
Function of Placenta:
The exchange of materials between the blood of mother and foetus takes place through placenta. It provides nutrition to the foetus. It also serves as the respiratory (by allowing exchange of oxygen and carbon dioxide) and excretory organs (by allowing excretion of waste material of foetus into mother's blood) of the foetus.
RELATED QUESTIONS
Describe, in brief, the changes the uterus undergoes
(i) to receive the zygote.
(ii) if zygote is not formed
Name the respective part of human female reproductive system:-
(i) that produces eggs,
(ii) where fusion of eggs and sperm takes place, and
(iii) where zygote gets implanted.
Describe in brief the structure of placenta
What is the life support system of a fetus?
What is the name of the narrow opening between the uterus and the vagina.
During adolescence, several changes occur in the human body. Mark one change from the following associated with sexual maturation in boys.
The vagina is a muscular tube.
Rewrite the following terms in a correct and logical sequence:
The luteal phase, follicular phase, menstrual phase, ovulatory phase.
Explain the term Parturition or birth.
Cryptorchidism is a condition where ______.
