However, relaxation of the sphincter is also in part a learned response under voluntary control. The released urine enters the urethra, a tube lined with mucus membrane that conveys the urine to the outside. The male urethra, about 8 in. (20 cm) long, terminates at the tip of the penis...
Male Urethra The male urethra is 8 to 9 inches (200mm) long. It is in the shape of a tube. Its prostatic section is arched in shape. The male urethra is longer than the female one, as it has an additional reproductive function to perform along with the excretion of urine. It is co...
The prostate gland plays an integral role in male reproduction during young adulthood. Its anatomic location, between the bladder and the membranous urethra, means that it is also an important part of the urinary voiding pathway and has a significant bystander effects on urinary function. The ...
The Testis The main functions of the male reproductive system are to produce the male sex steroid hormones (androgens), to manufacture the male gametes (spermatozoa), and to deliver these successfully to the female reproductive tract. The testes are anatomically and functionally compartmentalized to ...
The penis consists of several major structures:1 Glans: This is the head of the penis. Urethra: This is the tube through which urine and semen exit the penis. Meatus: This is the opening of the urethra at the tip of the penis.
Studies on the function of the urethra and bladder in continent and incontinent female dogs 来自 国家科技图书文献中心 喜欢 0 阅读量: 24 作者:Nickel,F R.摘要: Author information: (1)Department of Clinical Sciences of Companion Animals, Faculty of Veterinary Medicine, Utrecht University, The ...
Finally, section and aggressive mobilization or denervation of the bulbospongiosus muscle to expose the bulbar urethra may result in more or less subtle changes in ejaculation dynamics, since the rhythmic contractions of the muscle during the expulsion phase are fundamental in seminal fluid expulsion ...
Stage IV: Increasingly penile clitoris, urethra-like urogenital sinus at base of clitoris, and complete labial fusion Stage V: Penile clitoris, urethral meatus at the tip the of phallus, scrotum-like labia which is male in appearance, though without palpable gonads View chapterPurchase book Cortico...
Stimulation with 20 Hz pulse trains did not elicit increased pressures in the proximal parts of the urethra when the bladder was empty. With the bladder filled, the pressures in the proximal urethra followed the bladder pressure. Sphincter responses were significantly higher with the bladder filled....
Catheterization of the urethra is difficult in females owing to the presence of the urethral diverticulum at the floor of the pelvis and close to impossible in males, because multiple anatomic locations in male anatomy (urethral process, sigmoid flexure, urethral diverticulum) are diffi...