Urogenital membrane[ edit ] There is initially a cloacal membranecomposed of ectoderm and endoderm, reaching from the umbilical cord to the tail, separating the cloaca from the exterior. After the separation of the rectum from the dorsal part of the cloaca, the ventral part of the cloacal membrane becomes the urogenital membrane.
Receives the male spermatazoa during Protects and nourishes the fertilized egg until it is fully developed Delivers fetus through birth canal Provides nourishment to the baby through milk secreted by mammary glands in the breast External Genitals Vulva The external female genitalia is referred to as vulva.
It consists of the labia majora and labia minora while these names translate as "large" and "small" lips, often the "minora" can protrude outside the "majora"mons pubis, clitoris, opening of the urethra meatusvaginal vestibule, vestibular bulbs, vestibular glands.
The term "vagina" is often improperly used as a generic term to refer to the vulva or female genitals, even though - strictly speaking - the vagina is a specific internal structure and the vulva is the exterior genitalia only. Calling the vulva the vagina is akin to calling the mouth the throat.
Mons Veneris The mons veneris, Latin for "mound of Venus" Roman Goddess of love is the soft mound at the front of the vulva fatty tissue covering the pubic bone.
It is also referred to as the mons pubis. The mons veneris protects the pubic bone and vulva from the impact of sexual intercourse. After puberty, it is covered with pubic hair, usually in a triangular shape.
Heredity can play a role in the amount of pubic hair an individual grows. Labia Majora The labia majora are the outer "lips" of the vulva. They are pads of loose connective and adipose tissue, as well as some smooth muscle. The labia majora wrap around the vulva from the mons pubis to the perineum.
The labia majora generally hides, partially or entirely, the other parts of the vulva. There is also a longitudinal separation called the pudendal cleft. These labia are usually covered with pubic hair.
The color of the outside skin of the labia majora is usually close to the overall color of the individual, although there may be some variation. The inside skin is usually pink to light brown. They contain numerous sweat and oil glands. It has been suggested that the scent from these oils are sexually arousing.
Labia Minora Medial to the labia majora are the labia minora. The labia minora are the inner lips of the vulva. They are thin stretches of tissue within the labia majora that fold and protect the vagina, urethra, and clitoris.
The appearance of labia minora can vary widely, from tiny lips that hide between the labia majora to large lips that protrude. There is no pubic hair on the labia minora, but there are sebaceous glands.
The two smaller lips of the labia minora come together longitudinally to form the prepuce, a fold that covers part of the clitoris. The labia minora protect the vaginal and urethral openings. Both the inner and outer labia are quite sensitive to touch and pressure.
Clitoris The clitoris, visible as the small white oval between the top of the labia minora and the clitoral hood, is a small body of spongy tissue that functions solely for sexual pleasure.
Only the tip or glans of the clitoris shows externally, but the organ itself is elongated and branched into two forks, the crura, which extend downward along the rim of the vaginal opening toward the perineum. Thus the clitoris is much larger than most people think it is, about 4" long on average.
The clitoral glans or external tip of the clitoris is protected by the prepuce, or clitoral hood, a covering of tissue similar to the foreskin of the male penis. However, unlike the penis, the clitoris does not contain any part of the urethra. During sexual excitement, the clitoris erects and extends, the hood retracts, making the clitoral glans more accessible.
The size of the clitoris is variable between women. On some, the clitoral glans is very small; on others, it is large and the hood does not completely cover it.the manner in which women’s development is framed, such that women’s development is presented as an aberration in comparison to white male development, which is held up as the standard.
External Genital Development in Males and Females. In comparison, the female tissues will develop into the female genitals in the absence of androgens.
External Genital Development in. Clinical Science () 95, – (Printed in Great Britain) A comparison of the development of renal hypertension in male and female rats Rachel OKUNIEWSKI, ElizabethA. DAVIS, Bevyn. The development of women's "eggs" are arrested during fetal development.
This means she is born with a predetermined number of oocytes and cannot produce new ones. At about 5 months gestation, the ovaries contain approximately six to seven million oogonia, which initiate meiosis.
This list of related male and female reproductive organs shows how the male and female reproductive organs and the development of the reproductive system are related, A comparison between an erect clitoris (left) and a flaccid penis. The postnatal development of the female reproductive system in laboratory animals and humans is reviewed. To enable a meaningful species comparison of the developing female reproductive system, common definitions of developmental processes were established with a focus made on aspects that are similar across species. "All the mounting evidence indicates these ideas about hard-wired differences between male and female brains are wrong," she of the variation in young children's verbal development is due to.
Development of the Male and Female Reproductive Systems. Learning Objectives.
and suppresses genes that are important in female development. View this animation to see a comparison of the development of structures of the female and male reproductive systems in a growing fetus. The postnatal development of the female reproductive system in laboratory animals and humans is reviewed.
To enable a meaningful species comparison of the developing female reproductive system, common definitions of developmental processes were established with a focus made on aspects that are similar across species.