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Female cycle. The average length of the reproductive cycle for females is 2–4 weeks. Females reach sexual maturity (puberty) between 8 and 18 months of age. There is a tremendous variability in the maturation age between breeds, and even within a breed of dog. [ 5] 1.
19650. Anatomical terminology. [ edit on Wikidata] The urinary meatus[ a] ( / miːˈeɪtəs /, mee-AY-təs; pl.: meatus or meatuses ), also known as the external urethral orifice, is the opening where urine exits the male and female urethra. It is where semen also exits the male urethra. The meatus has varying degrees of sensitivity to touch.
The urethral sphincters are two muscles used to control the exit of urine in the urinary bladder through the urethra. The two muscles are either the male or female external urethral sphincter and the internal urethral sphincter. When either of these muscles contracts, the urethra is sealed shut. The external urethral sphincter originates at the ...
Urination is the release of urine from the bladder to the outside of the body. Urine is released from the urethra through the penis or vulva in placental mammals [ 1][ 2]: 38, 364 and through the cloaca in other vertebrates. [ 3][ 1] It is the urinary system 's form of excretion.
Transitional epithelium animation, highlighting the epithelial layer, then underlying connective tissue. Contrast the messy appearance of the epithelial surface to other epithelial tissues. Transitional epithelium is a type of stratified epithelium. [ 1] Transitional epithelium is a type of tissue that changes shape in response to stretching ...
The post ‘Puppy-Dog Eyes’ Didn’t Evolve Just for Humans, Study Shows appeared first on DogTime. Pet parents would agree that it is hard to resist puppy-dog eyes. A recent study proved that ...
The cover of How to Draw Manga: Bodies & Anatomy. How to Draw Manga ( Japanese: マンガの描き方) is a series of instructional books on drawing manga published by Graphic-sha, by a variety of authors. Originally in Japanese for the Japanese market, many volumes have been translated into English and published in the United States.
The female reproductive system is made up of the internal and external sex organs that function in the reproduction of new offspring. The human female reproductive system is immature at birth and develops to maturity at puberty to be able to produce gametes, and to carry a fetus to full term. The internal sex organs are the vagina, uterus ...