Natuurwetenschappen: Reproductive System

• reproduction


  making offsprings
• When the parents are the same species


  the offspring is fertile
• animals


  need a male (sperm) and female (ovum)

  -> sexually
• plants


  can reproduce without using a male and a female

  -> asexually
• sexual reproduction


  sperm + ovum fuse together

  => genetic diversity
• Asexual reproduction


  organism is created from a part of the parent (stem, leave,...)

  => genetically identical
• anther


  3

  
• filament


  2

  
• Stamen


  red

  
• stigma


  4

  
• style


  5

  
• fruitcapsule


  the part where the ovule gets fertilised

  
• pistel


  circle

  
• seed capsule (ovule)


  7

  
• petals ?

  
• sepals


  red

  
• hermaphroditic flower


  a flower with two genders
• fore skin


  protect the glans
• glans


  detects sexual stimuli

  
• penis


  is able to insert sperm into the vagina while in erection
• urethra


  transports sperm and urine outwards

  
• erectile tissue


  makes the penis have an erection

  
• spermatic cords


  transport the sperm from the epididymis

  
• seminal vesicles


  preduces seminal fluid that is added first to the sperm

  
• prostate gland


  produces seminal fluid and regulates the transit of urine or sperm

  
• cowper glands


  production of pre-fluid so that the urethra is less acidic and spermfriendly

  
• epididymis


  ripening of sperm and temporary storage
• scrotum


  protects the testicles and maintains a good temperature for sperm production (+/- 35 C°)
• testicles


  produces sperm and testosterone
• erection


  1) erectile tissue fills with blood

  2) sperm goes through the spermatic cords together with seminal fluid
• semen


  the combination of sperm and seminal fluid
• labia


  protects the genital opening
• clitoris


  detect sexual stimuli
• genital opening


  entrance of the vagina
• uterus


  fertilised ovum goes into the endometrium and lets it develop into a baby that will be born by contractions
• vagina


  produces vaginal fluid, disposes of blood during menstruation and catches sperm during sex
• cervix


  closes the womb and only opens during childbirth
• ovary


  ripening of ovum and produces oetrogen and progesterone
• fimbrea


  catches a matured ovum during ovulation
• fallopiantube


  transports the ovum towards the uterus, fertilisation happens here