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प्रश्न
Except endocrine function, what are the other functions of placenta.
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उत्तर
Placenta facilitates the supply of oxygen and nutrients to the embryo. It also removes CO2 and excretory wastes produced by embryo.
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संबंधित प्रश्न
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?
State the Function of Chorionic Villi
Explain Rh factor incompatibility during pregnancy.
Gonads develop from embryonic ______.
Which of the following hormones is not secreted by human placenta?
In the development of the human body, the ectoderm is responsible for the formation of ______.
Relaxin is the hormone secreted by the placenta.
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 ______
hCG is secreted by ______
Match the columns I and II with reference to weeks of pregnancy and the development of a human embryo. Select the correct option from the choices given below:
| Column I | Column II | ||
| I. | 8 weeks | (P) | Limbs and external genital organs |
| II. | 12 weeks | (Q) | Limbs and digits develop. |
| III. | 20 weeks | (R) | Body hair develops. |
| IV. | 24 weeks | (S) | Eyelids separate. |
What are the finger-like projections of the outer embryonic layer that penetrate the uterine wall called?
Which placental function is responsible for delivering O₂ from maternal blood to the fetus?
What is the outermost germ layer that gives rise to the brain, spinal cord, and peripheral nerves?
During which trimester does organogenesis, the formation of all major organs, primarily occur?
Which hormone is secreted by the ovary in the later phase of pregnancy to relax pelvic ligaments for delivery?
Which hormone prepares the mammary glands for lactation and promotes fetal growth?
Which external genital structures become distinguishable and well-developed by the end of 12 weeks?
