2. 1. VOCABULARY
1. The sense of smell.
The olfatory receptors are in the nasal cavity.
3. 2. The sense of taste.
Taste receptor are on the tongue.
4. 3. The sense of touch.
The skin is the main organ.
5. 4. The sense of sight
The eyes are the main organ
6. 5. The sense of hearing.
The ears are the main organs.
7. 2. QUESTIONS
Which is the main receptory of sense of smell?
When you eat, which is the main sensory
system that you use?
Which is the main organ of sight?
Which is the main organ of the hearing?
8. 3. ACTIVITIES.
Match the colums.
Tongue The sense of sight.
Ear The sense of smell
Nasal cavity The sense of hearing.
Eyes The sense of touch
Skin The sense of taste.
11. DIFFERENCES BETWEEN MEN AND
WOMEN
WOMEN MEN
Women also have breasts Men have a stronger voice.
Softer voice. More hair.
Less hair. Wider chest than women.
Wider hips.
16. FECUNDATION
• If there is any ovum (egg cell) released, the
egg cell and the sperm cells meet.
17. FECUNDATION
• Once a sperm fertilizes an OVUM, it becomes
a zygote. The zygote then divides itself to form
a very tiny ball called an embryo. The embryo
continues downwards and finds itself a
confortable place in the uterus.
18. FOETAL DEVELOPMENT
• The embryo becomes a foetus (say fee-tus) eight weeks after
fecundation. The foetus depends upon its mother for
protection, oxygen and nutrients as it develops.
Inside the uterus, there is a bag called the. ‘Amnion’
19. BIRTH
• After nine months the baby is fully developed
and ready to be born into the big wide world.
20. The Menstrual Cycle
• The menstrual cycle typically lasts 28 days;
approximately 1 month.
– One cycle is the amount of time from the
beginning of one period to the beginning of the
next period.
• The beginning of a period is marked by the
release of the blood and lining from the inside
of the uterus.
– This flow of blood typically lasts 3-7 days and is
called menstruation.
21.
22. QUESTIONS (speaking)
• Which are the male sex cells and female sex
cells?
• Could you say me the stage of the life?
• What is the Menstraul Cycle?
23. ACTIVITIES
• 1.- What is the foetal development?
• 2.- Match the words with definition.
Sperm Sex female cells
Ovum Sex male cells
Zygote Inside the uterus, there is a bag
Amnion Once a sperm fertilizes an OVUM
26. The nerveous system
The nervous system has two main parts:
CENTRAL NERVOUS SYTEM
PERIPHERAL NERVOUS SYSTEM
27. CENTRAL NERVOUS SYSTEM
The brain is inside the skill. It has got three main parts:
Cerebrum
Cerebellum
Brain stem.
The spinal cord is insede the spinal column.
29. VOLUNTARY AND INVOLUNTARY
MOVEMENTS
Nerve impulses for voluntary movements go
from the brain to the muscles.
Tehe nerve impulses for involuntary
movements go from the spinal cord to the
musles.
30. ACTIVITIES
Anwser the questions:
a) Which are the parts of nervous system?
b) What are the three main parts of the brain?
31. ACTIVITIES
3 Write if this movement is voluntary or
involuntary.
Sneezing when you have fot a cold.
Take a book.
Playing a muscial instrument
Pulling back your hand from something hot.
