Request a call back

Join NOW to get access to exclusive study material for best results

CBSE Class 12-science Answered

When and  how   does  PLACENTA  develops  in  human ?  Explain  in  detail .
Asked by pardeepkumar2281 | 13 May, 2018, 07:51: AM
answered-by-expert Expert Answer
1. The placenta develops throughout the embryonic period and during the first several weeks of the fetal period
2. The placenta is the intimate connection between the foetus and uterine wall of the mother for the exchange of materials.
3. The outer surface of the chorion in humans develops several finger-like projections called chorionic villi, which grow into the tissue of the uterus.
4. The chorionic placenta consists of the foetal part, the chorion and a maternal part ,the deciduas basalis.
5. The type of placenta which is based on the intimacy between the foetal and maternal parts of the placenta is called the haemochorial placenta.
6. The placenta is connected to the embryo through the umbilical cord which helps in the transport of substances to and from the embryo.
 
 
Answered by Sivanand Patnaik | 13 May, 2018, 10:20: AM
CBSE 12-science - Biology
Asked by daminicherom08 | 16 Mar, 2024, 07:44: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 12-science - Biology
Asked by nashifaafroj | 18 Jan, 2024, 11:38: AM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 12-science - Biology
Asked by KRISHPATEL.soc | 20 Jun, 2021, 02:09: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 12-science - Biology
Asked by ll2495206 | 02 Aug, 2020, 11:56: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 12-science - Biology
Asked by ayangwkonyak2003 | 16 May, 2020, 04:02: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 12-science - Biology
Asked by gshanker082 | 02 May, 2019, 04:59: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 12-science - Biology
Asked by mallicknirupama721 | 13 Jan, 2019, 01:48: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 12-science - Biology
Asked by pitambersingh260 | 02 Jul, 2018, 05:09: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 12-science - Biology
Asked by gganga | 22 Jun, 2018, 05:42: AM
ANSWERED BY EXPERT ANSWERED BY EXPERT
Get Latest Study Material for Academic year 24-25 Click here
×