Advertisements
Advertisements
Question
Except endocrine function, what are the other functions of placenta.
Advertisements
Solution
Placenta facilitates the supply of oxygen and nutrients to the embryo. It also removes CO2 and excretory wastes produced by embryo.
APPEARS IN
RELATED QUESTIONS
When and where do chorionic villi appear in humans?
During the reproductive cycle of a human female, when, where and how does a placenta develop? What is the function of placenta during pregnancy and embryo development?
Gonads develop from embryonic ______.
Which of the following hormones is not secreted by human placenta?
The early stage human embryo distinctly possesses ______.
The concentration of which of the following substances will decrease in the maternal blood as it flows from embryo to placenta through the umbilical cord?

The human foetus within the uterus
- Oxygen
- Amino Acids
- Carbon dioxide
- Urea
To answer the question, study the graphs below for Subjects 1 and 2 showing different levels of certain hormones.


Subject 2 has a higher level of hormone B, which is ______
Read the following and answer from given below:
Cleavage is the series of rapid mitotic divisions in the zygote and forms blastula. The 2, 4, 8, 16 daughter cells are called blastomeres. An embryo with 64 blastomeres is known as a blastocyst and has a blastocoel cavity. Blastocyst gets implanted in the uterine wall and leads to preganancy.
The solid mass of cells with 16 blastomeres is called ______
Read the following and answer from given below:
Cleavage is the series of rapid mitotic divisions in the zygote and forms blastula. The 2, 4, 8, 16 daughter cells are called blastomeres. An embryo with 64 blastomeres is known as a blastocyst and has a blastocoel cavity. Blastocyst gets implanted in the uterine wall and leads to pregnancy.
At which stage of embryonic development does trophectoderm develop?
Read the following and answer from given below:
Cleavage is the series of rapid mitotic divisions in the zygote and forms blastula. The 2, 4, 8, 16 daughter cells are called blastomeres. An embryo with 64 blastomeres is known as a blastocyst and has a blastocoel cavity. Blastocyst gets implanted in the uterine wall and leads to pregnancy.
The correct sequence of various structures formed during embryonic development is ______
Several hormones like HCG, HPL estrogen, and progesterone are produced by ______.
Extra-embryonic membranes provide:
Placenta is
Explain the formation of placenta after the implantation in a human female.
Draw a diagram showing human foetus within the uterus and label any four, parts in it.
Explain the phases in embryonic development from the morula stage till the establishment of pregnancy in a human female.
The diagram given below represents a specific stage of human embryonic development. Identify the stage.

Assertion A: Breast-feeding during initial period of infant growth is recommended by doctors for bringing a healthy baby.
Reason R: Colostrum contains several antibodies absolutely essential to develop resistance for the new born baby.
In the light of the above statements, choose the most appropriate answer from the options given below:
