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M6 13-005
Exam 8: Reproductive System; Intro
Term | Definition |
---|---|
Male Internal Reproductive Organs | Testes Epididymis Vas Deferens Seminal Vesicle Ejaculatory Duct Prostate Gland Bulbourethral Gland |
Testes: Structure | Paired, bilateral ovoid shaped suspended by the spermatic cord, contained within scrotum |
Testes: Function | Produce sperm Produce testosterone |
Epididymis: Stucture | Tightly coiled tube that emerges from top of each testis, leads into vas deferens |
Epididymis: Function | Stores sperm cells until they mature |
Vas Deferens: Structure | Muscular tube passes along the medial side of the testis into abdominal cavity makes up the spermatic cord ends behind urinary bladder |
Vas Deferens: Function | Transports sperm |
Seminal Vesicle: Structure | Convoluted, sac-like structure, 5cm long attached to each vas deferens at base of the bladder |
Seminal Vesicle: Function | secretes slightly alkaline fluid consisting of fructose and other nutrients for sperm cells. Produces 60% of the volume of semen. |
Ejaculatory Duct: Structure | Short tube (1 inch) beginning at seminal vesicle and ending in the prostate gland |
Ejaculatory Duct: Function | Transport sperm and seminal fluid to urethra |
Prostate Gland: Structure | Firm structure the size of a chestnut composed of muscular glandular tissue |
Prostate Gland: Function | Secretes thin, milky, alkaline fluid which contributes to the motility of sperm |
Cowper's Glands: Structure | 2 pea-sized glands under the male urethra |
Cowper's Glands: Function | Provide lubrication during sexual intercourse |
What is the function of the Vas Deferens? | To transport sperm |
What is the function of the Epididymis? | Stores sperm cells until they mature. |
Scrotum: Structure | Sac like structure 2 separate chambers each chamber encloses a testis |
Scrotum: Function | Provides a cooler home for the testes |
Penis: Structure | Shaft is composed of 3 columns of erectile tissue: (2) Corpora Cavernosa (1) Corpora Spongiosum |
Penis: Function | Specialized to become erect for insertion into the vagina during sexual intercourse |
Ovaries: Structure | Solid, ovoid shaped structures subdivided into 2 sections -medulla -Cortex |
Ovaries: Location | Lie bilateral to the uterus inferior to fallopian tubes |
Ovaries: Function | At puberty, they release progesterone and produce the female sex hormone estrogen. It releases a mature egg cell during the menstrual cycle. |
Fallopian Tubes (Oviducts): Structure | Pair of ducts Forms a funnel shaped region near the ovary called the infundibulum. Infundibulum is surrounded by fringe of finger-like projections called fimbrae. |
Fallopian Tubes (Oviducts): Function | Cilia along with peristaltic contractions of its wall move the egg cell on to the uterus. |
Uterus: Structure | Muscular, hollow, shaped like an inverted pear. |
Layers of the uterine wall | Endometrium Myometrium Perimetrium |
Uterus: Function | Receives and sustains developing fetus. Capable of enlarging up to 500 times. |
Vagina: Structure | Thin walled muscular tube-like structure Lined with mucous membranes |
Vagina: Function | Receives the erect penis during intercourse Conveys uterine secretions Transports offspring during birth |
What are the 2 sections the ovaries are subdivided into? | Medulla Cortex |
Labia Majora: Structure | Large fold of fatty tissue extending from the mons pubis to the perinial floor |
Labia Majora: Function | Protects inner structures Contains sensory nerve endings, sebaceous and sudoriferous glands |
Labia Minora: Structure | Smaller folds, devoid of hair that emerge anteriorly to form the prepuce of the clitoris |
Labia Minora: Function | Protect the openings of the vagina and urethra. |
Clitoris: Structure | Composed of erectile tissue |
Clitoris: Function | Sexual arousal |
Vestibule: Structure | Space enclosing the structures beneath labia minora |
Vestibule: Function | Contains the clitoris, urethra, hymen and vaginal opening |
Accessory Glands | Paraurethral or Skene's Glands Bartholin's Glands or Vestibular |
Paraurethral or Skeen's Glands | Responsible for secretion of mucus and are similar to the male prostate gland |
Bartholin's Glands or Vestibular | Lubricates the vagina for sexual intercourse |
Perineum | A diamond shaped area from the symphysis pubis and extends to the anus. Region that contains the reproductive structures. |
What is the function of the clitoris? | Sexual Arousal |
What is the function of the Labia Majora? | Enclose and protect other external organs. |
Mammary Glands: Structure | located in the subcutaneous tissue of the anterior thorax. Composed of about 15-20 lobes. Nipple surrounded by the areola |
Mammary Glands: Function | Specialized to secrete millk following pregnancy. Under the influence of prolactin, milk is formed. Oxytocin allows the milk to be released. |
What is the function of the mammary glands? | To secrete milk following pregnancy |
T pigment around the nipple is called? | The areola. |
what is the difference between the peritoneum and the perineum? | One it tis, and one it Taint! |