Placenta Notes: Definitions & Explanations PDF | Download eBooks
Study Placenta lecture notes PDF with biology definitions and explanation to study What is Placenta?. Study placenta explanation with biology terms to review biology course for online degree programs.
Placenta Definition:
Lining of the uterus and the extraembryonic membranes that arise from the embryo form a placenta, a structure in which nutrients diffuse into the embryo from the mother's blood.
Campbell Biology by J.B. Reece, L.A. Urry, M.L. Cain, S.A. Wasserman, P.V. Minorsky, R.B. Jackson
Placenta Notes:
The placenta is a temporary organ that connects the developing fetus via the umbilical cord to the uterine wall to allow nutrient uptake, thermo-regulation, waste elimination, and gas exchange via the mother's blood supply; to fight against internal infection; and to produce hormones which support pregnancy. Placentas are a defining characteristic of placental mammals, but are also found in marsupials and some non-mammals with varying levels of development. After pregnancy is over, placenta is also pushed out of the body.
Keep Learning with Biology Notes
What is Restriction fragment?
A restriction fragment is a DNA fragment resulting from the cutting of a DNA strand by a restriction enzyme, this ...
What is Active site?
The active site is the region of an enzyme where substrate molecules bind and undergo a chemical reaction. This site ...
What are Linkage groups?
Linkage group, in genetics, all of the genes on a single chromosome. They are inherited as a group; that is, ...
What is Paleoanthropology.?
Paleoanthropology is a branch of archaeology with a human focus. It seeks to understand the early development of anatomically modern ...
What is Radial symmetry?
Radially symmetric organisms resemble a pie where several cutting planes produce roughly identical pieces. Such an organism exhibits no left ...
What is Soil salinization?
Soil salinity is the salt content in the soil. The process of increasing the salt content is hence known as ...
