Сүйек құрылысы бойынша биология презентациясы, 8 сынып

What can be found inside our bones?

Look at the board and answer the queshon ?

Aim : - stady the chemical composition, macro- and microcopic structure of the bone

The them: Bone structure

Key terms:

Spongy substance- dense part of the bone, which provides the strengh of bones

Periosteum - a thin, dens connective tissue with which the bone grows together

Todays new termins

Dense- тығыз

To digging up- қазбалау

Elasticity- серпімділік

Fragility— сынғыштық

Remains- қалдықтар

Scapula- жауырын

Spongy- кеуекті

Stiffness- қаттылық

Tubular- түтікшелі

Vinegar- сірке су

Home work Research time Arthritis is a disease, which causes painful inflammation and stiffness of the joints It is very common to elder people Find causes of arthritis and how to prevent it Present a poster to your friends

Facts : Rethink your drink

Many of fizzy drinks contain phosphoric acid which decreases the absorption of calcium in the body Deficiency of calcium make bone weak, so it breaks easily So rethink your choice the next time you buy a fizzy drink