Medical Academy named after S.I. Georgievsky of Vernadsky CFU

Август 21, 2022

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Medical Academy named after S.I. Georgievsky of Vernadsky CFU

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2. THEORY OF PHYLEMBRYOGENESIS This theory was put by Russian palaentologist Severtsov, postulating the phylogenetic changes inn
3. THEORY OF PHYLEMBRYOGENESIS- ANABOLISM The process involving a sequence of chemical reactions that constructs or synthsis
4. WHAT IS ANABOLISM
5. Anabolic processes build organs and tissues. These processes produce growth and differentiation of cells and increase
6. B There is still much ongoing differential (DNA sequence based) comparison research that is trying to
8. Similarities in Chordata Reproduction Reproduction among members of this phylum is sexual, meaning that an egg
9. Most chordates are dioecious, meaning that the males and females of species are different (''di'' for
10. Differences in Sexual Reproduction Since most chordates reproduce sexually, we're now going to switch to talking
11. There are two ways that eggs themselves are fertilized. Most terrestrial species will employ internal fertilization,
13. Characteristics of chordata reproduction
14. DEVELOPMENTAL DISORDES OF HUMAN REPRODUCTIVE SYSTEM Reproductive system disease, any of the diseases and disorders that
16. The main divisions of this article are concerned with (1) genetic and congenital abnormalities, (2) functional
18. Affecting both male and female systems Delayed puberty The term delayed puberty may be a misnomer,
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THEORY OF PHYLEMBRYOGENESIS
This theory was put by Russian palaentologist Severtsov, postulating

the phylogenetic changes inn organisms are conditioned by ontogenetic alterations, in that certain events are added or deleted in development
of embryo based on events of ancestral development.

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THEORY OF PHYLEMBRYOGENESIS- ANABOLISM
The process involving a sequence of chemical reactions

that constructs or synthsis molecules fronm smaller units using (ATP) in the process

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WHAT IS ANABOLISM

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Anabolic processes build organs and tissues. These processes produce growth and

differentiation of cells and increase in body size, a process that involves synthesis of complex molecules.

FUNCTION OF ANABOLISM

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B
There is still much ongoing differential (DNA sequence based) comparison research

that is trying to separate out the simplest forms of chordates. As some lineages of the 90% of species that lack a backbone or notochord might have lost these structures over time, this complicates the classification of chordates. Some chordate lineages may only be found by DNA analysis, when there is no physical trace of any chordate-like structures

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Similarities in Chordata Reproduction
Reproduction among members of this phylum is sexual,

meaning that an egg is fertilized by a sperm. There are a few animals in this group that reproduce asexually, ''a'' meaning ''without sex.''

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Most chordates are dioecious, meaning that the males and females of

species are different (''di'' for ''two''). For example, humans and other mammals, most fish, birds, and reptiles, etc., have males and females that have distinctly different reproductive organs. But some chordates are hermaphroditic, meaning that they have both male and female reproductive structures.

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Differences in Sexual Reproduction Since most chordates reproduce sexually, we're now going

to switch to talking about the differences in how this is accomplished. We know that through this type of reproduction an egg is fertilized by a sperm, but there are different ways that this can occur, as well as different paths that the egg may take after fertilization

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There are two ways that eggs themselves are fertilized. Most terrestrial

species will employ internal fertilization, where the egg is fertilized inside the body, while most aquatic species will employ external fertilization

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Characteristics of chordata reproduction

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DEVELOPMENTAL DISORDES OF HUMAN REPRODUCTIVE SYSTEM
Reproductive system disease, any of the

diseases and disorders that affect the human reproductive system. They include abnormal hormone production by the ovaries or the testes or by other endocrine glands, such as the pituitary, thyroid, or adrenals. Such diseases can also be caused by genetic or congenital abnormalities, infections, tumours, or disorders of unknown cause.

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The main divisions of this article are concerned with (1) genetic

and congenital abnormalities, (2) functional genital disorders, (3) infections, (4) structural changes of unknown cause, and (5) tumours. For discussion of diseases and disorders affecting pregnancy, see pregnancy. For diseases and disorders affecting childbirth, see parturition.

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Affecting both male and female systems Delayed puberty The term delayed puberty may

be a misnomer, because puberty delayed beyond age 19 is in fact a permanent failure of sexual development because of an abnormally low secretion by the pituitary gland of gonadotropic hormone, the hormone that stimulates growth and activity of the sex glands; this condition is called hypogonadotropic eunuchoidism. The term delayed puberty is usually applied to boys who develop more slowly than the average but who still eventually undergo full sexual development.

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