Structure of teeth every tooth consists of a crown, a neck and one or more roots. the crown is the part visible in the mouth and the root is the part hidden inside the jaw. the junction of crown and root is called the neck and end of the root is called the apex. every tooth is composed of enamel, dentine, cementum and pulp. enamel is the outer covering of the crown and is the hardest substance in the body. cementum is the outer covering of the root and is similar in structure to bone. cementum meets enamel at the neck of the tooth. dentine occupies the interior of the crown and root, and is very sensitive to pain. pulp. unlike enamel, dentine and cementum, the pulp is purely soft tissue. it contains blood vessels and nerves, and occupies the centre of the dentine. supporting structures. every tooth is insert into the jaw by its root. the part of the jaw containing the teeth is known as the alveolar process and is covered with a soft tissue called gum. the jaw bones consist of a dense outer layer known as compact bone and a softer interior called spongy bone. a tooth is attached to its socket in the jaw by a soft fibrous tissue called the periodontal membrane. exercise 4. find words and combination of words in the text and read them. 1. visible 2. the junction 3. to be composed of 4. the hardest substance in the body 5. very sensitive to pain 6. soft tissue 7. alveolar process 8. to be attached exercise 5. answer the following questions: 1. what does a tooth consist of? 2. how is the junction of crown and root called? 3. what is every tooth composed of? 4. what do you know about enamel? 5. where does cementum meet enamel? 6. what is cementum? 7. is dentine sensitive to pain? 8. what does pulp contain? 9. what supporting structures can you name?
profession nanny
this profession can rightly be considered one of the oldest, and the work of a nanny is similar to the work of a teacher. the nanny teaches, monitors the daily routine and nutrition, is responsible for the moral, mental and physical health of his ward.
consider the main types of nannies:
• daytime, working with children from morning to evening. she takes the child to school, groups, takes him out of class, deals with him, can cook food. if such a nanny is invited to a preschooler, then her duties include walking for hours, organizing proper nutrition, developing games and activities;
• night, which will be with the child from 8 pm until the morning. such a babysitter can be invited for the whole night or for a few hours;
• a nanny living in an employer's apartment provides round-the-clock child care;
• a housekeeper who combines childcare with housekeeping.
we can single out a seasonal nanny who works with the child during the holidays, and an evening babe who will pick up the child from school, staying with him until her parents return from work. a separate category is to include nurse guards, who in addition to education are responsible for ensuring the security of their ward.
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Nature is amazing and unique. This can be seen on any street in the city, but especially in the forest. It is enough to single out one day and go with family or friends, you can even alone, into the nearest forest. To see how many animals and birds live in our latitudes, to appreciate the variety of plants. It is noteworthy that this can be done at any time of the year - our forests are amazing and beautiful always.