Seminal Vesicle Development: Difference between revisions

Revision as of 08:34, 16 September 2012

Notice - Mark Hill

Currently this page is only a template and is being updated (this notice removed when completed).

Introduction

Historic drawing of the fetal male urogenital system

In humans, the male accessory glands are the seminal vesicles, prostate gland, and the bulbourethral glands. The male gonad, the testis, differentiates embryonically initially under the influence of the Y chromosome. Later under the influence the gonad-derived fetal testosterone acting through androgen receptors, a region of the urogenital sinus (UGS) mesenchyme differentiates to form the primordial prostate buds. The buds then signal back to the overlying epithelium, inducing duct formation, this was one of the early studied (1970's) example of an mesenchymal-epithelial interaction in development. Interestingly, the female equivalent gland originally called Skene's gland, then paraurethral gland has now also been renamed the female prostate.

There are also currently separate pages describing Genital - Male Development | Spermatozoa Development | Testis Development | Prostate Development.

Historic Embryology - Genital
General: 1901 Urinogenital Tract \| 1902 The Uro-Genital System \| 1904 Ovary and Testis \| 1912 Urinogenital Organ Development \| 1914 External Genitalia \| 1921 Urogenital Development \| 1921 External Genital \| 1942 Sex Cords \| 1953 Germ Cells \| Historic Embryology Papers \| Historic Disclaimer
Female: 1904 Ovary and Testis \| 1904 Hymen \| 1912 Urinogenital Organ Development \| 1914 External Genitalia \| 1914 Female \| 1921 External Genital \| 1927 Female Foetus 15 cm \| 1927 Vagina \| 1932 Postnatal Ovary
Male: 1887-88 Testis \| 1904 Ovary and Testis \| 1904 Leydig Cells \| 1906 Testis vascular \| 1909 Prostate \| 1912 Prostate \| 1914 External Genitalia \| 1915 Cowper’s and Bartholin’s Glands \| 1920 Wolffian tubules \| 1935 Prepuce \| 1935 Wolffian Duct \| 1942 Sex Cords \| 1943 Testes Descent \| Historic Embryology Papers \| Historic Disclaimer

| Puberty

Some Recent Findings

Male urogenital development (stage 22)

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Textbooks

Historic drawing of the human prostate

Human Embryology (2nd ed.) Larson Chapter 10 p261-306
The Developing Human: Clinically Oriented Embryology (6th ed.) Moore and Persaud Chapter 13 p303-346
Before We Are Born (5th ed.) Moore and Persaud Chapter 14 p289-326
Essentials of Human Embryology, Larson Chapter 10 p173-205
Human Embryology, Fitzgerald and Fitzgerald Chapter 21-22 p134-152
Developmental Biology (6th ed.) Gilbert Chapter 14 Intermediate Mesoderm

Prostate Development Overview

Genital Development Overview

Three main stages during development, mesonephric/paramesonephric duct changes are one of the first male/female differences that occur in development, while external genitaila remain indeterminate in appearance for quite a while.

Differentiation of gonad (Sex determination)
Differentiation of internal genital organs
Differentiation of external genital organs

The 2nd and 3rd stages dependent on endocrine gonad. Reproductive development has a long maturation timecourse, begining in the embryo and finishing in puberty. (More? Puberty Development)

Prostate Histology

Secretory Glands

Historic Images of Genital Changes


Urogenital indifferent	Urogenital male	Urogenital female

Historic Gray's Anatomy - Seminal Vesicle

Historic Disclaimer - information about historic embryology pages
Pages where the terms "Historic" (textbooks, papers, people, recommendations) appear on this site, and sections within pages where this disclaimer appears, indicate that the content and scientific understanding are specific to the time of publication. This means that while some scientific descriptions are still accurate, the terminology and interpretation of the developmental mechanisms reflect the understanding at the time of original publication and those of the preceding periods, these terms, interpretations and recommendations may not reflect our current scientific understanding. (More? Embryology History \| Historic Embryology Papers)

iBook - Gray's Embryology
	iTunes link \| iBooks Store Description - an extract of the embryology content from Anatomy of the Human Body By Henry Gray Philadelphia: Lea & Febiger, 1918. Releases First Edition - Jan 2012 Second Edition - March 2012 Repaired formatting and image display issues related to Pad rotated display and minor editing issues. Print length 169 pages, 41.6 MB, Language English. The current website also includes numerous images from this textbook, see Anatomy of the Human Body by Henry Gray and Category:Gray's 1918 Anatomy. Note the also Historic Disclaimer.

Reference

Gray H. Anatomy of the human body. (1918) Philadelphia: Lea & Febiger.

Cite this page: Hill, M.A. (2024, April 25) Embryology Seminal Vesicle Development. Retrieved from https://embryology.med.unsw.edu.au/embryology/index.php/Seminal_Vesicle_Development

What Links Here?

Abnormalities

References

↑ <pubmed></pubmed>

Reviews

Articles

Search PubMed

Search Pubmed "Prostate Embryology" Oct 2010 - All (775) Review (113) Free Full Text (171)

Search Pubmed: seminal vesicle Embryology | seminal vesicle Development

Additional Images

Terms

5-α-reductase - enzyme that converts testosterone to dihydrotestosterone.
androgen receptor - (AR)
benign prostatic hyperplasia
mesenchyme - embryonic connective tissue
paraurethral gland - (Skene's gland) - female prostate gland is the correct nomenclature
prostate gland - Greek, prostates = "one who stands before", "protector", a female prostate gland exists
prostate cancer
UGE - urogenital epithelium
UGS - urogenital sinus

Glossary Links

Glossary: A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z | Numbers | Symbols | Term Link

Cite this page: Hill, M.A. (2024, April 25) Embryology Seminal Vesicle Development. Retrieved from https://embryology.med.unsw.edu.au/embryology/index.php/Seminal_Vesicle_Development

What Links Here?

[PMID-1] <pubmed></pubmed>

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