Why is human chorionic gonadotropin important?
Placenta secretes human chorionic gonadotropin (hCG). hCG helps in maintaining the corpus luteum. It stimulates the release of progesterone in... View Article
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What is the difference between a totipotent cell and a pluripotent cell?
Totipotent cells can give rise to the whole organism as well as extraembryonic tissues such as the placenta. Pluripotent cells... View Article
Can birth defects be seen on ultrasound?
Some of the birth defects can be seen in the ultrasound at 19-20 weeks of pregnancy. E.g. heart defects, spina... View Article
Where do you find pluripotent stem cells?
Pluripotent cells can give rise to three germinal layers but cannot produce extraembryonic tissues. Embryonic stem cells are derived from... View Article
Does the corpus luteum secrete hCG?
No, Corpus luteum secretes progesterone. Placenta secretes hCG. Also Check: Why Is A Single Ovum Produced By Oogenesis? Do Oogenesis... View Article
Does an embryo have a heartbeat?
Heart develops in the embryo after the first month of pregnancy. Heart starts beating after about 5 weeks of pregnancy.... View Article
What happens if a blastocyst does not implant?
If implantation does not occur, it results in the termination of pregnancy, the uterine lining disintegrates leading to bleeding. Also... View Article
What is the placenta?
Placenta is formed by the interdigitation of chorionic villi and uterine tissues. It is the structural and functional unit between... View Article
What does the gastric glands secrete?
Gastric glands secrete HCl from parietal cells, pepsinogen from peptic or chief cells and mucus from mucus neck cells. Also... View Article
How does a zygote become a blastocyst?
A zygote divides by a series mitotic division to produce a cluster of smaller nucleated cells called blastomeres. The blastocyst... View Article
What is the process of cleavage?
The zygote divides by a series of mitotic divisions to form small nucleated cells called blastomeres, it is called cleavage.... View Article
Is a morula stage before blastocyst?
Yes, the morula stage precedes the blastocyst stage. An embryo with 8-16 blastomeres or daughter cells is called a morula.... View Article
Where does the human embryo develop?
The human embryo develops inside the uterus. Also Check: Why Is A Single Ovum Produced By Oogenesis? Do Oogenesis And... View Article
What comes first morula and blastula?
The morula stage comes first in the early embryonic stage followed by blastula. The morula contains 8-16 blastomeres. Also Check:... View Article
What organ produces acid in the stomach?
HCl is secreted by the parietal cells of gastric glands in the stomach. Also Check: What is Digestion Absorption and... View Article
How long does it take for a morula to become a blastocyst?
After fertilisation, the zygote starts dividing (cleavage) by mitosis. The daughter cells are called blastomeres. The embryo with 8-16 daughter... View Article
Where is oxytocin released?
Oxytocin is released from the posterior pituitary gland. It is produced in the hypothalamus. Also Check: How Can The Relationship... View Article
Where are the stem cells located in the embryo?
The stem cells are located in the inner mass cell of the blastocyst. Also Check: Why Is A Single Ovum... View Article
What are the types of cleavage?
The types of cleavage are determinate, indeterminate or regulative, holoblastic and meroblastic. Also Check: Why Is A Single Ovum Produced... View Article
Does fertilization occur in the oviduct?
Yes, fertilisation occurs in the ampullary region of the oviduct. Also Check: Why Is A Single Ovum Produced By Oogenesis?... View Article
