wolffian duct वाक्य
उदाहरण वाक्य
मोबाइल
- This duct is known as the pronephric duct, mesonephric duct or Wolffian duct.
- The duct of the mesonephros forms the Wolffian duct and ureter of the adult kidney.
- Thus, the Wolffian duct is what remains of the pronephric duct after the atrophy of the pronephros.
- The Wolffian duct remains as the duct in males, and the M�llerian as that of the female.
- If the testes fail to secrete testosterone, or the androgen receptors do not function properly, the Wolffian ducts degenerate.
- Before this stage, humans are simply undifferentiated and possess a M�llerian duct, a Wolffian duct, and a genital tubercle.
- The urinary bladder is formed partly from the endodermal cloaca and partly from the ends of the Wolffian ducts.
- Shortly after the formation of the Wolffian ducts a second pair of ducts is developed; these are the M�llerian ducts.
- Each arises on the lateral aspect of the corresponding Wolffian duct as a tubular invagination of the cells lining the abdominal cavity.
- Masculinization involves the production of male typical morphology ( development of the Wolffian ducts into male reproductive structures ) and behavioural predispositions.
- This continues to grow caudalward until it opens into the ventral part of the cloaca; beyond the pronephros it is termed the Wolffian duct.
- In the sexually undifferentiated embryo, testosterone stimulates the development of the Wolffian ducts, the penis, and closure of the labioscrotal folds into the scrotum.
- The M�llerian ducts end in an epithelial elevation, the M�llerian eminence, on the ventral part of the cloaca between the orifices of the Wolffian ducts.
- On the medial side of the Wolffian duct, from the sixth cervical to the third lumbar segments, a series of tubules, the Wolffian tubules, develops.
- In the female, with the absence of anti-M�llerian hormone secretion by the Sertoli cells and subsequent M�llerian apoptosis, the Wolffian duct regresses, and inclusions may persist.
- One end grows toward and finally opens into the Wolffian duct, the other dilates and is invaginated by a tuft of capillary bloodvessels to form a glomerulus.
- The Wolffian duct forms the epididymis, vas deferens, ductus deferens, ejaculatory duct, and seminal vesicle in the male reproductive system and essentially disappears in the female reproductive system.
- This structure is derived from the Wolffian duct ( Mesonephric Duct ) as opposed to the appendix testis which is derived from the M�llerian duct ( Paramesonephric Duct ) remnant.
- If these cells can recognize testosterone, male development proceeds by prompting the female-forming structures, known as mullerian ducts, to degenerate and the male-forming structures, called wolffian ducts, to differentiate into the organs and ducts needed for male development.
- The pronephros disappears very early; the structural elements of the mesonephros mostly degenerate, but the gonad is developed in their place, with which the Wolffian duct remains as the duct in males, and the M�llerian as that of the female.
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