Wk 12- Reproductive System Flashcards
(19 cards)
Male reproductive system:
What are the 4 main components?
- T ?
- Epi?
- D vas D?
- P and U ?
- Testes
- Epidydimis
- Ductus vas deferens
- Penis Urethra
Male reproductive system:
What are the 3 accessory glands?
- Sem? vesicles ?
- P?
- B cowpers glands
- Seminary vesicles
- Prostate
- Bulbourethral Cowper’s glands
Testes:
Paired oval glands
Located outside the a- cavity : ? Degrees lower than core temperature
Internally divided into -50 lobules
Each lobule = 1-? Coiled sem? tubules
Abdominopelvic cavity , 3 degrees
250 lobules
1-4 lobules , seminiferous tubules
Seminiferous tubules:
What are the 3 cells inside the seminiferous tubules?
1. Sp? cells : produce s?
- Su? sertoli cells : support spermatogenesis, supply nourishment, remove excess c?, blood testes barrier (prevents — penetration)
- Int? leydig cells : secrete t?
- Spermatogenic cells, sperm
- Sustentacular cells , nourishment, cytoplasm, white blood cells
- Interstitial , testosterone
Epididymis and ductus vas deferens ducts:
Epididymis: Coiled duct Involved in maturation of s? S? Storage Removes damaged s?
Ductus vas deferens:
45 cm long
Ascends into p? Cavity
Transports sperm to u?
Sperm
Sperm
Sperm
Pelvic
Urethra
Male accessory glands :
- Seminal vesicles
Secrete viscous alkaline fluid ( fructose and Clotting pr? And prostaglandins)
Contributes 60 to -0% Semen volume
protein
60-70%
Male accessory glands :
- Prostate gland:
Produce alkaline pro? Fluid
Nutrient source and enzymes
– to 30% semen volume
Prostatic fluid
20-30%
Male accessory glands :
- Bulbourethral gland:
Alkaline mucous secreting
Mucous to neutralise u- acid
Neutralise urinary acid
Female reproductive system:
Produces g?
Supports develop e/f
What are the 4 Principles structures?
- O?
- U?/ fallopian Tubes
- U?
- V?
Gametes
Embryo/fetus
- Ovaries
- Uterine / Fallopian tubes
- Uterus
- Vagina
The ovaries
The ovaries = female g?
Paired organs
Produce female g? Secondary o?
Produce e? And p?
Ovaries cortex- ovarian f?
Ovaries medulla- blood vessels/ ly?And n?
Gonads Gametes , oocytes Estrogen , progesterone Ovarian follicles Lymphatic and nerves
Ovarian follicles:
Consist of o?
Cells nourish o? And secrete oestrogen
Mature Graafian follicle = fluid cell r? Expels s? Oocyte
Corpus lutem (?)= follicle after discharging s? O? Then disintegrates = corpus albicans (?)
Oocytes Oocytes Ruptures , secondary oocyte Yellow body , secondary oocyte White body
Follicular development:
Formation female g? = o?
Millions of oocytes produced in fetal development
Degenerate over time : remaining develop into p? Oocytes
–,000 at puberty
-00 mature and ovulate during life cycle
Gametes = oocytes
Primary oocytes
40,000
400
Uterine/ Fallopian tubes :
Main site of f?
Hollow muscular tube divided into 3 parts
- Infundibulum = close to o?
- Amp-? = widest part and thick m- wall
- Is-? = narrow, nearest u?
Fertilisation
- Ovary
- Ampulla , muscular
- Isthmus , uterus
Uterine / fallopian tubes:
Lined with c? Moves fertilised ovum / secondary oocytes to u?
P? Movements in muscularis layer facilitates movement
Non ciliated Cells secrete nourishing fluid.
Cilia , uterus
Peristaltic
The uterus :
Site of im? of ovum
Development of e/f?
Divided into 3 parts (similar to stomach)
- F? Dome top portion
- B? Large central area
- Cer? Narrow and lowest portion
Implantation
Embryo/fetus
- Fundus
- Body
- Cervix
Uterine wall:
What are the 3 layers?
1. Peri? / serosa : outer layer
- My? : thickest section , 3 layers s? m? , contractions during birth
- En? : inner lining of uterus
Made of 2 layers
- Perimetrium
- Myometrium smooth muscle
- Endometrium
Endometrium:
What are the 2 layers?
- Stratum fu? : lines uterine cavity , sheds in m?
- Stratum ba? : permanent layer, produces new stratum f? after m?
- Functionalis, menstruation
2. Basalis , functionalis, menstruation
Vagina:
Muscular tract lined mucosa
Mucosa contains gly?
Breakdown of gl? by bacteria produces l? Acid
Acid protects against m? entry and growth
Environment is hostile to s?
Glycogen
Glycogen, lactic
Microorganisms
Sperm
Male and female gonads:
What are the hormones produced by the gonads ?
Testes = an? Test?
Ovaries = e? and p?
Androgens , testosterone
Estrogen , progesterone