Bulbourethral gland là gì

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MỘT SỐ THUẬT NGỮ HAY DÙNG TRONG CHUYÊN NGÀNH SẢN – PHỤ KHOA (medical term for obstetrics)16/05/2017 04:30:38

MEDICAL TERM FOR OBSTETRICS

Obstetrics: sản khoa

Gynecology: phụ khoa( gyneco-: women)

Reproductive system: hệ sinh sản

FSH: follicle stimulating hormone: hormone kích thích nang trứng

LH: luteinizing  hormone: hormone hoàng thể hóa

Sperm: tinh trùng

Ovum(plural: ova): trứng

Fertilization: sự thụ tinh

The Fallopian tube: vòi trứng

Infertility: vô sinh

IVF:  in vitro fertilization: thụ tinh trong ống nghiệm

Menstrual cycle: chu kì kinh nguyệt

Bulbourethral gland là gì

Erectile tissue of penis: mô cương của dương vật

Vas deferens: ống dẫn tinh

Testis: tinh hoàn

Epididymis: mào tinh

Bulbourethral  gland: tuyến hành niệu đạo

Seminal vesicle: túi tinh

Endometrium: nội mạc tử cung

Corpus luteum: hòang thể

Bulbourethral gland là gì

Placenta: nhau thai

Amnion: màng ối

Hymen: màng trinh

AFIamniotic fluid index– chỉ số dịch ối

BPD: biparietal diameter– đường kính lưỡng đỉnh(tính trên siêu âm sản khoa)

CST: Contraction Stress Test hay ngắn gọn hơn gọi là stress test(ST)- nghiệm pháp co cơ(tử cung) gắng sức-> để bộc lộ những điểm yếu của thai nhi trong thai kì

NST: non- stress test-> nghiệm pháp không gây co thắt cơ tử cung

GDM: gestational diabetes mellitus: đái tháo đường thai kì

IUGR: intrauterine growth restriction: chậm phát triển trong tử cung

EFM: electronic  fetal monitoring:  điện thai

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Bulbourethral gland
Bulbourethral gland là gì

Male anatomy

Bulbourethral gland là gì

Micrograph of bulbourethral gland. H&E stain.

Details
PrecursorUrogenital sinus
ArteryArtery of the urethral bulb
Identifiers
LatinGlandulae bulbourethrales
MeSHD002030
TA98A09.3.09.001
TA23659
Anatomical terminology

[edit on Wikidata]

The bulbourethral glands or Cowper's glands (named for English anatomist William Cowper) are two small exocrine glands in the reproductive system of many male mammals (of all domesticated animals, they are absent only in dogs).[1] They are homologous to Bartholin's glands in females. The bulbouretheral glands are responsible for producing a pre-ejaculate fluid called Cowper's fluid (known colloquially as pre-ejaculate or pre-cum), which is secreted during sexual arousal, neutralizing the acidity of the urethra in preparation for the passage of sperm cells.[2]

Location[edit]

Bulbourethral glands are located posterior and lateral to the membranous portion of the urethra at the base of the penis, between the two layers of the fascia of the urogenital diaphragm, in the deep perineal pouch. They are enclosed by transverse fibers of the sphincter urethrae membranaceae muscle.

Structure[edit]

Bulbourethral gland là gì

Dissection of prostate showing the bulbourethral glands within the fibers of the external urethral sphincter just underneath the prostate

The bulbourethral glands are compound tubulo-alveolar glands, each approximately the size of a pea in humans. In chimpanzees, they are not visible during dissection, but can be found on microscopic examination.[3] In boars, they are up to 18 cm long and 5 cm in diameter.[1] They are composed of several lobules held together by a fibrous covering. Each lobule consists of a number of acini, lined by columnar epithelial cells, opening into a duct that joins with the ducts of other lobules to form a single excretory duct. This duct is approximately 2.5 cm long and opens into the bulbar urethra at the base of the penis. The glands gradually diminish in size with advancing age.[4][unreliable source]

Function[edit]

Bulbourethral gland là gì

Secretory fluid from the bulbourethral glands appearing on the glans of a human penis

The bulbourethral gland contributes up to 4 ml of fluid during sexual arousal.[5] The secretion is a clear fluid rich in mucoproteins that help to lubricate the distal urethra and neutralize acidic urine which remains in the urethra.

According to one preliminary study, the bulbourethral gland fluid might not contain any sperm,[6] whereas another study showed some men did leak sperm in potentially significant quantities (in a range from low counts up to 50 million sperm per ml) into the pre-ejaculatory fluid,[5] potentially leading to conception from the introduction of pre-ejaculate. However, the sperm source is a residual or pre-ejaculatory leak from the testicles into the vas deferens,[5] rather than from the bulbourethral gland itself.[6]

  • Bulbourethral gland là gì

    Structure of the penis

  • Bulbourethral gland là gì

    Male pelvic organs seen from right side.

  • Bulbourethral gland là gì

    Vertical section of bladder, penis, and urethra.

  • Bulbourethral gland là gì

    Bulbourethral gland labeled at center left.

See also[edit]

  • List of homologues of the human reproductive system
  • Urethral gland

References[edit]

  1. ^ a b Mark McEntee (December 2, 2012). Reproductive Pathology of Domestic Mammals. Elsevier Science. p. 333. ISBN 978-0-323-13804-8. Retrieved August 20, 2013.
  2. ^ "What is pre-ejaculatory fluid (also known as pre-cum), and can it cause pregnancy?". International Planned Parenthood Federation. 13 February 2019. Retrieved 21 July 2019.
  3. ^ Jeffrey H. Schwartz (1988). Orang-utan Biology. Oxford University Press. p. 92. ISBN 978-0-19-504371-6. Retrieved August 20, 2013.
  4. ^ Gray's Anatomy, 38th ed., p 1861.
  5. ^ a b c Killick, S. R; Leary, C; Trussell, J; Guthrie, K. A (2010). "Sperm content of pre-ejaculatory fluid". Human Fertility. 14 (1): 48–52. doi:10.3109/14647273.2010.520798. PMC 3564677. PMID 21155689.
  6. ^ a b Zukerman, Z; Weiss, D. B; Orvieto, R (2003). "Short Communication: Does Preejaculatory Penile Secretion Originating from Cowper's Gland Contain Sperm?". Journal of Assisted Reproduction and Genetics. 20 (4): 157–159. doi:10.1023/A:1022933320700. PMC 3455634. PMID 12762415.