Customer Service Chat
Get quote & make Payment
Actions of estrogens, Biology
Actions of Estrogens
The most general effect of the estrogens is to promote tissue growth. It is more pronounced in the accessory sex tissues. Estrogens stimulate cell division in the ' deeper parts of the skin and causes a more rapid replacement of the outer cornified layers of the skin. There is some evidence that high levels of estrogens (under pathological conditions) may be potentially dangerous as they may encourage the formation of cancer in certain individuals.
Estrogens are required for the maintenance of vaginal lining and uterine growth. It has been observed that in the experimental animals deprived of estrogens, the vaginal lining and the uterine wall become thin, and mitotic divisions seldom occur in these tissues. Administration of estrogens to the estrogen-deprived animals causes rapid growth of the vaginal and the uterine tissue. The metabolic activity of these tissues also increases as evidenced by augmented uptake of water and electrolytes by the tissues and rise in the RNA content of the tissue.
Estrogens are essential for the anatomic preparation of the mammary glands for milk secretion. In some species it affects mammary development in combination with progesterone. But in some species, estrogens alone or progesterone alone produce the effect. As a general rule, the mammary glands require pre-treatment with estrogens before the progestogens are effective.
In mammals sexual receptivity or heat coincides with a period during which the ovaries are secreting large amounts of estrogens. Full mating behaviour generally depends upon both estrogen and progesterone. These ovarian hormones probably act through the central nervous system (hypothalamus) to condition the psychic manifestations such as increased spontaneous activity, lordosis, sexual receptivity etc.
Posted Date: 1/16/2013 7:05:11 AM | Location : United States
Ask an Expert
Actions of estrogens, Assignment Help, Ask Question on Actions of estrogens, Get Answer, Expert's Help, Actions of estrogens Discussions
Write discussion on Actions of estrogens
Your posts are moderated
Write your message here..
Gregor mendel''s law of independent segregation, Gregor Mendel's Law of Ind...
Gregor Mendel's Law of Independent Segregation referred to which of the following genetic elements? A. Alleles of two genes that reside on the similar chromosome B. Alleles
Pathegens and disease, nkjn
How are mammals characterized, Q. Mammal identity card. How are mammals cha...
Q. Mammal identity card. How are mammals characterized according to examples of representing beings, skin, respiration, nitrogen waste, basic morphology, circulation, thermal contr
Use of aldehydes as chemical sterilant, Q. Use of Aldehydes as chemical ste...
Q. Use of Aldehydes as chemical sterilant? Formaldehyde: widely employed for the fumigation of operation theatres. Glutaraldehyde: commercial preparations are active at
Cell itsstructure and functions, cellis basic unit of life
cellis basic unit of life
Features of amphibian gastrulation, Features of Amphibian Gastrulation ...
Features of Amphibian Gastrulation Major features of amphibian gastrulation are: Ectoderm surrounds the embryo by Epiboly. Gastrulation is initiated by a limited i
Nature of disease, Q. Nature of disease? Education is very important fo...
Q. Nature of disease? Education is very important for diabetics because it is a lifelong disorder. In order to enable the patient to lead a healthy and a good quality Life free
Life as an expression of energy changes, LIF E AS AN EXPRESSION OF ENERGY ...
LIF E AS AN EXPRESSION OF ENERGY CHANGES - Energy is explained as capacity of body to do work. Energy may be as potential (stored) or kinetic (expended) energy. It ex
What are the four groups of protozoans, What are the four groups of protozo...
What are the four groups of protozoans? The four major groups of protozoans are the sarcodines (that form pseudopods, like amoebae), the mastigophores (flagellated, such as the
Future challenges for scaling from individual to ecosystems, Define Future ...
Define Future challenges for scaling from individual to ecosystems? Scaling of biogeochemical fluxes in terrestrial systems has confirmed much harder. While ecosystem ecologist
Accounting Assignment Help
Economics Assignment Help
Finance Assignment Help
Statistics Assignment Help
Physics Assignment Help
Chemistry Assignment Help
Math Assignment Help
Biology Assignment Help
English Assignment Help
Management Assignment Help
Engineering Assignment Help
Programming Assignment Help
Computer Science Assignment Help
Why Us ?
~24x7 hrs Support
~Quality of Work
~Time on Delivery
~Privacy of Work
Human Resource Management
Literature Review Writing Help
Follow Us |
T & C
Copyright by ExpertsMind IT Educational Pvt. Ltd.