Penis Development: Difference between revisions
mNo edit summary |
mNo edit summary |
||
Line 90: | Line 90: | ||
===Reviews=== | ===Reviews=== | ||
{{#pmid:30262219}} | |||
===Articles=== | ===Articles=== | ||
{{#pmid:30245194}} | |||
{{#pmid:30262218}} | |||
{{#pmid:5690451}} | {{#pmid:5690451}} | ||
Revision as of 13:39, 29 January 2019
Embryology - 29 May 2024 Expand to Translate |
---|
Google Translate - select your language from the list shown below (this will open a new external page) |
العربية | català | 中文 | 中國傳統的 | français | Deutsche | עִברִית | हिंदी | bahasa Indonesia | italiano | 日本語 | 한국어 | မြန်မာ | Pilipino | Polskie | português | ਪੰਜਾਬੀ ਦੇ | Română | русский | Español | Swahili | Svensk | ไทย | Türkçe | اردو | ייִדיש | Tiếng Việt These external translations are automated and may not be accurate. (More? About Translations) |
Introduction
The external male genitalia consists of the penis and scrotum containing the testis.
Some Recent Findings
|
More recent papers |
---|
This table allows an automated computer search of the external PubMed database using the listed "Search term" text link.
More? References | Discussion Page | Journal Searches | 2019 References | 2020 References Search term: Penis Embryology | Penis Development |
Movies
|
|
|
Mesonephic Duct Development
The paired mesonephic ducts (Wolffian ducts) go through a series of developmental changes to form the male internal genital tract.
Initiation
Invagination
Elongation
- Links:
Foreskin Development
Foreskin development occurs during the second trimester.[4]
- GA week 12 (Week 10) - ectoderm circular invagination at the glandular periphery now grows ventrally.
- GA week 13 (Week 12) - glans partially covered by the foreskin.
- GA week 16-17 (Week 14-15) - glans almost completely covered by the foreskin.
- GA week 18-19 (Week 16-17) - complete foreskin was formed.
- GA week 20 (Week 18) - entirely involves the glans.
Postnatal Development
Abnormalities
Hypospadia
External urethral opening on the ventral surface of penis, can extend back into scrotum. Abnormality due to failure of genital fold fusion during fetal development of the male external genitalia.
Hypospadia Classification | Meatus Opening |
Anterior | on inferior surface of glans penis |
Coronal | in balanopenile furrow |
Distal | on distal third of shaft |
Penoscrotal | at base of shaft in front of scrotum |
Scrotal | on scrotum or between the genital swellings |
Perineal | behind scrotum or genital swellings |
Links: Genital Abnormalities | Penis Development |
Epispadias
Uncommon abnormality associated with the penis, 1 in 30,000 infant males, external urethral opening on the dorsal surface of penis.
Endocrine Disruptors
Endocrine disruptors in female reproductive tract development and carcinogenesis.[5]
Additional Images
Historic
References
- ↑ Baskin L, Shen J, Sinclair A, Cao M, Liu X, Liu G, Isaacson D, Overland M, Li Y & Cunha GR. (2018). Development of the human penis and clitoris. Differentiation , 103, 74-85. PMID: 30249413 DOI.
- ↑ Shen J, Overland M, Sinclair A, Cao M, Yue X, Cunha G & Baskin L. (2016). Complex epithelial remodeling underlie the fusion event in early fetal development of the human penile urethra. Differentiation , 92, 169-182. PMID: 27397682 DOI.
- ↑ Gallo CB, Costa WS, Furriel A, Bastos AL & Sampaio FJ. (2014). Modifications of erectile tissue components in the penis during the fetal period. PLoS ONE , 9, e106409. PMID: 25170760 DOI.
- ↑ Favorito LA, Balassiano CM, Costa WS & Sampaio FJ. (2012). Development of the human foreskin during the fetal period. Histol. Histopathol. , 27, 1041-5. PMID: 22763876 DOI.
- ↑ <pubmed>19709900</pubmed>
Reviews
Cunha GR & Baskin L. (2018). Development of human male and female urogenital tracts. Differentiation , 103, 1-4. PMID: 30262219 DOI.
Articles
Liu X, Liu G, Shen J, Yue A, Isaacson D, Sinclair A, Cao M, Liaw A, Cunha GR & Baskin L. (2018). Human glans and preputial development. Differentiation , 103, 86-99. PMID: 30245194 DOI.
Isaacson D, Shen J, Overland M, Li Y, Sinclair A, Cao M, McCreedy D, Calvert M, McDevitt T, Cunha GR & Baskin L. (2018). Three-dimensional imaging of the developing human fetal urogenital-genital tract: Indifferent stage to male and female differentiation. Differentiation , 103, 14-23. PMID: 30262218 DOI.
Wisniewski H & Terry RD. (1968). Further studies on experimental neurofibrillary tangles. J. Neuropathol. Exp. Neurol. , 27, 149-50. PMID: 5690451
Genital Links: genital | Lecture - Medicine | Lecture - Science | Lecture Movie | Medicine - Practical | primordial germ cell | meiosis | endocrine gonad | Genital Movies | genital abnormalities | Assisted Reproductive Technology | puberty | Category:Genital
| ||||
|
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, May 29) Embryology Penis Development. Retrieved from https://embryology.med.unsw.edu.au/embryology/index.php/Penis_Development
- © Dr Mark Hill 2024, UNSW Embryology ISBN: 978 0 7334 2609 4 - UNSW CRICOS Provider Code No. 00098G