Results 171 to 180 of about 487,985 (362)

The Occurrence of the Sperm Whale or Cachalot in the Shetland Seas, with Notes on the Tympano-petrous Bones of Physeter, Kogia, and other Odontoceti [PDF]

, 1904
William Turner
openalex   +1 more source

The Known and Unknown About Female Reproductive Tract Mucus Rheological Properties

BioEssays, EarlyView.
Mucus viscosity changes as spermatozoa travel through the female reproductive tract to the egg in humans, bovines, mice, and other mammals. These changes may aid in spermatozoa navigation. However, limited information is available on the viscoelastic properties of female reproductive tract mucus, and consistent measurement techniques are lacking ...
Luke Achinger, Derek F. Kluczynski, Abigail Gladwell, Holly Heck, Faith Zhang, Ethan Good, Alexis Waggoner, Mykala Reinhart, Megan Good, Dawson Moore, Dennis Filatoff, Supriya Dhar, Elisa Nigro, Lucas Flanagan, Sunny Yadav, Trinity Williams, Aniruddha Ray, Tariq A. Shah, Matthew W. Liberatore, Tomer Avidor‐Reiss   +19 more
wiley   +1 more source

Sensitivity of Immature Mouse Sperm to the Mutagenic Effects of X-Rays [PDF]

, 1957
A. J. BATEMAN
openalex   +1 more source

Influence of CAG Repeat Polymorphism on the Targets of Testosterone Action

International Journal of Endocrinology, 2015
In the last decade, ample evidence has demonstrated the growing importance of androgen receptor (AR) CAG repeat polymorphism in andrology. This genetic parameter is able to condition the peripheral effects of testosterone and therefore to influence male ...
Giacomo Tirabassi, Angelo Cignarelli, Sebastio Perrini, Nicola delli Muti, Giorgio Furlani, Mariagrazia Gallo, Francesco Pallotti, Donatella Paoli, Francesco Giorgino, Francesco Lombardo, Loredana Gandini, Andrea Lenzi, Giancarlo Balercia   +12 more
doaj   +1 more source

The ductal network in the human testis and epididymis: What belongs to which?

Clinical Anatomy, EarlyView.
Abstract The testes and epididymis are traversed by a system of tubules in which sperm cells are generated, matured, nourished, and transported. Among these are the efferent ductules, which connect the rete testis to the duct of the epididymis. In the Terminologia Anatomica (TA), the efferent ductules are assigned to the testicles, while numerous ...
Andreas Gocht, Axel Stuart Merseburger, Süleyman Ergün, Marie Christine Roesch   +3 more
wiley   +1 more source

Editorial Comment from Dr Fukuhara and Dr Nonomura to A case of hypogonadtropic hypogonadism due to hypophysitisdiscovered by secondary male infertility

, 2023
IJU Case Reports, Volume 6, Issue 1, Page 53-54, January 2023.
Shinichiro Fukuhara, Norio Nonomura
wiley   +1 more source

The sperm centrosome and aster of Allolobophora foetida [PDF]

, 1903
Katharine Foot, E. C. Strobell
openalex   +1 more source

The annulus: composition, role and importance in sperm flagellum biogenesis and male fertility

Basic and Clinical Andrology
The annulus is an electron-dense ring structure that surrounds the axoneme and compartmentalizes the sperm flagellum into two parts: the midpiece and the principal piece.
Marjorie Whitfield
doaj   +1 more source

Contribution of Bacterial Infection to Male Infertility in Nigerians [PDF]

, 2009
There is disagreement as to the influence of certain microbial infection on male infertility and such agents are ignored. The incidence of these microbial agents in seminal fluid isolates is on the increase.
Emokpae, MA, Sadiq, NM, Uadia, PO
core   +1 more source

Chemotactic Maneuverability of Sperm [PDF]

arXiv, 2011
In this fluid mechanics video, we explore the kinematics of chemotaxing sperm cells (sea urchin, \textit{Arbacia punctulata}) swimming in a chemoattractant gradient. We demonstrate that the complex swimming trajectories resulting in chemotactic behavior (`turn-and-run' motility) are comprised of several distinct flagellar maneuvers.
arxiv