Results 121 to 130 of about 359,825 (361)
The Anatomical Record, EarlyView.Abstract Mysticetes, or baleen whales, have an air sac on the ventral surface of the larynx known as the “laryngeal sac.” The primary hypothesis regarding this structure's function is that it is involved in sound production. However, several other functions have been proposed, including air recycling, air storage, and even buoyancy control.
Gen Nakamura +7 more
wiley +1 more source
orsed Intraabdominal Testis: A Rarely Considered Diagnosis
Western Journal of Emergency Medicine, 2006 Cryptorchidism, or maldescended testis, is a common problem encountered in pediatric age groups. Despite more than 100 years of research, many aspects of cryptorchidism are not well defined and remain controversial.
Osime, O C, Momoh, M I, Elusoji, S O
doaj
Effect of FSH on testicular morphology and spermatogenesis in gonadotrophin-deficient hypogonadal mice lacking androgen receptors [PDF]
, 2010 Follicle stimulating hormone (FSH) and androgen act to stimulate and maintain spermatogenesis. FSH acts directly on the Sertoli cells to stimulate germ cell number and acts indirectly to increase androgen production by the Leydig cells.
Abel, M.H. +4 more
core +2 more sources
The Anatomical Record, EarlyView.Abstract Stages of embryonic development for reptiles have been presented in tables that may include all or part of embryonic development. When oviposition occurs in some lizards, embryos are already in the later stages of development; likewise, the size of the eggs increases as incubation time progresses.
Nivia Rocio Antonio‐Rubio +3 more
wiley +1 more source
A rare case of duplicated vas deferens and epididymis
Journal of Pediatric Surgery Case Reports, 2014 A 1-year-old boy was admitted to our department with undescended testis on the left side of the body. Upon surgical exploration, a diagnosis of polyorchidism was made. The accessory proximal testis was removed and the distal testis underwent orchidopexy.
Kan Terawaki +8 more
doaj +1 more source
Quantitative Proteomics Reveals the Essential Roles of Stromal Interaction Molecule 1 (STIM1) in the Testicular Cord Formation in Mouse Testis [PDF]
, 2015 Bo Zheng +8 more
openalex +1 more source
The Anatomical Record, EarlyView.Abstract The anatomical description of the hourglass dolphin (Cephalorhynchus cruciger) and the spectacled porpoise (Phocoena dioptrica) remains largely unexplored, due to limited specimen availability and preservation challenges. This study employed digital imaging techniques, conventional histology, and computed tomography to provide visualization of
Jean‐Marie Graïc +26 more
wiley +1 more source
Five different cases of ectopic testes in children: a self-experience with literature review
World Journal of Pediatric Surgery, 2019 Background Empty scrotum may be due to many reasons; besides true undescended testis these are monorchia, retractile testis, atrophy of testis due to torsion and ectopic testis.
Ali Egab Joda
doaj +1 more source
Expression patterns of C1ql4 and its cell‐adhesion GPCR Bai3 in the murine testis and functional roles in steroidogenesis [PDF]
, 2019 Anni Tan +8 more
openalex +1 more source
Gonadal development in scorpion mud‐turtles, Kinosternon scorpioides, in a controlled environment
The Anatomical Record, EarlyView.Stage 20 was identified as the critical point for gonadal differentiation in Kinosternon scorpioides, providing key insights into sex determination. These findings enhance conservation strategies by supporting reproductive management and population viability in both in situ and ex situ programs. Abstract Research on gonadal development including sexual
Brenda Braga +4 more
wiley +1 more source