YR3_CH5_LSN5A

• Biologie
• Middelbare school
• havo, vwo
• Leerjaar 3

LESSON 5

REPRODUCTION & GENETICS

MALE PARTS

FEMALE PARTS

BOTH

URETHRA

VAGINA

PENIS

BLADDER

LABIA

GLANS

TESTICLES

UTERUS

OVARIES

CLITORIS

SCROTUM

PROSTATE

Learning goals LSN 5:

• I know what the menstrual cycle and how it works.
• I know what hormones and processes are involved and can explain this to others.
• I know how a human can get pregnant and how this can be prevented naturally.
• I know what phases there are in the pregnancy and how a fetus develops.
• I know how a human will give birth and can explain this process.

Key words LSN 5:

• oestrogen
• fertilisation
• menstruation
• progesterone
• LH
• FSH
• uterus lining
• dilation contractions
• embryo
• fetus
• pushing contractions

• pituitary gland
• thyroid gland
• adrenal gland
• negative feedback loop
• testosterone

Pancreas releases glucagon

Pancreas releases insulin

Liver breaks down glycogen

Body cells take up glucose

Glucagon

Insuline

Menstrual cycle

• Is between 2-9 weeks (average 28 days=4 weeks).
• it causes periods (shedding of uterus lining)
• Women are fertile around and after the ovulation (egg cells lives ~24 hrs).
• Hormone levels are constantly changing. 

Menstrual cycle

• FSH- Follicle Stimulating Hormone
• Oestrogen- plays a role in ovulation and stimulation thickening of uterus lining
• LH - causes ovulation
• Progesteron - maintains thick uterus lining

Pregnancy cycle

• Fertilised egg produces HCG
• HCG causes Progesteron to stay high
• HCG is known as the pregnancy hormone, this is what you test for with a pregnancy test.

embryo                 fetus                   fetus

Learning goals section 5 (chapter 2):

• I know how a human can get pregnant and how this can be prevented naturally.
  
• I know what phases there are in the pregnancy and how a fetus develops.
  
• I know how a human will give birth and can explain this process.
  

What to do now:

• check your learning goals
• check your keywords
• write down your summary of the day
• study for the entry ticket.

Pituitary releases less ADH

Kidneys reabsorb more water

Kidneys reabsorb less water

Pituitary releases more ADH

more urination