The mouth, buccal cavity, or oral cavity is the first portion of the alimentary canal(digesstive system) that receives food and begins digestion by mechanically breaking up the solid food particles

mouth

Anatomy

The mouth, buccal cavity, or oral cavity is the first portion of the alimentary canal(digesstive system) that receives food and begins digestion by mechanically breaking up the solid food particles into smaller pieces and mixing them with saliva. The mouth is normally moist, and is lined with a mucous membrane. The mucous membrane (oral mucosa) is epithelium lining the inside of the mouth. The lips mark the transition from the mucous membrane to skin, which covers most of the body.

The oral cavity is located in the frontal part of the skull within the upper and lower jaws. The first space of the mouth is the mouth cavity, bounded laterally and in front by the alveolar arches (containing the teeth), and by the isthmus of the fauces. The oral cavity is also known as the mouth which swallows food and drinks that go down to the person's stomach. The mouth contains the lips, the teeth, the tongue, the alveoli, the hard palate, the soft palate.

Function

Infants are born with a sucking reflex, by which they instinctively know to suck for nourishment using their lips and jaw. The mouth swallows food and drinks that go down to the person's stomach The mouth plays an important role in speech (it is part of the vocal apparatus), facial expression, eating, drinking (especially with a straw) & breathing. In addition to its primary role as the beginning of the digestive system, in humans the mouth also plays a significant role in communication. While primary aspects of the voice are produced in the throat, the tongue, lips, and jaw are also needed to produce the range of sounds included in human language. Another non-digestive function of the mouth is its role in secondary social and/or sexual activity, such as kissing. The physical appearance of the mouth and lips plays a part in defining sexual attractiveness.

Cultural aspects

According to etiquette, the mouth is kept closed, especially when chewing.

Lips can be adorned with lipstick or lip gloss, although in most cultures this is typically only practiced by females. Both men and women, however, apply lip balm in order to soothe chapped or dry lips.

Piercings in or around the mouth have been made popular by the younger generations. Piercings on the lip or tongue are not uncommon. The uvula piercing is also making a greater appearance, though it still remains a relatively rare piercing and there are still many piercers who refuse to do it.

Development

The philtrum is the vertical groove in the upper lip, formed where the nasomedial and maxillary processes meet during embryo development. When these processes fail to fuse fully, a hare’s lip and/or cleft palate can result.

The nasolabial folds are the deep creases of tissue that extend from the nose to the sides of the mouth. One of the first signs of age on the human face is the increase in prominence of the nasolabial folds.

Mouth

1.

The mouth, buccal cavity, or oral cavity is the first portion of the alimentary canal(digesstive system) that receives food and begins digestion by mechanically breaking up the solid food particles into smaller pieces and mixing them with saliva. The mouth is normally moist, and is lined with a mucous membrane. The mucous membrane (oral mucosa) is epithelium lining the inside of the mouth. The lips mark the transition from the mucous membrane to skin, which covers most of the body.

The oral cavity is located in the frontal part of the skull within the upper and lower jaws. The first space of the mouth is the mouth cavity, bounded laterally and in front by the alveolar arches (containing the teeth), and by the isthmus of the fauces. The oral cavity is also known as the mouth which swallows food and drinks that go down to the person's stomach. The mouth contains the lips, the teeth, the tongue, the alveoli, the hard palate, the soft palate.

2.

Infants are born with a sucking reflex, by which they instinctively know to suck for nourishment using their lips and jaw. The mouth swallows food and drinks that go down to the person's stomach The mouth plays an important role in speech (it is part of the vocal apparatus), facial expression, eating, drinking (especially with a straw) & breathing. In addition to its primary role as the beginning of the digestive system, in humans the mouth also plays a significant role in communication. While primary aspects of the voice are produced in the throat, the tongue, lips, and jaw are also needed to produce the range of sounds included in human language. Another non-digestive function of the mouth is its role in secondary social and/or sexual activity, such as kissing. The physical appearance of the mouth and lips plays a part in defining sexual attractiveness.

3.

According to etiquette, the mouth is kept closed, especially when chewing.

Lips can be adorned with lipstick or lip gloss, although in most cultures this is typically only practiced by females. Both men and women, however, apply lip balm in order to soothe chapped or dry lips.

Piercings in or around the mouth have been made popular by the younger generations. Piercings on the lip or tongue are not uncommon. The uvula piercing is also making a greater appearance, though it still remains a relatively rare piercing and there are still many piercers who refuse to do it.

4. The philtrum is the vertical groove in the upper lip, formed where the nasomedial and maxillary processes meet during embryo development. When these processes fail to fuse fully, a hare’s lip and/or cleft palate can result.

The nasolabial folds are the deep creases of tissue that extend from the nose to the sides of the mouth. One of the first signs of age on the human face is the increase in prominence of the nasolabial folds.

I. Read the text quickly. Find the right title for each part.

1. History

2. Anatomy

3. Cultural aspects

4. Department

5. Development

6. Function

II. Read parts 1 and 2 and

a) find equivalents for these (USE DICTIONARY to learn PRONUNCIATION), define the parts of speech

1. ротовая полость (3)

2. ЖКТ (2)

3. слюна

4. слизистая мембрана (2)

4. верхняя и нижняя челюсти

5. альвеолярные дуги

6. глотать

7. содержать

8. зуб(ы)

9. язык

10. сосательный рефлекс

11. желудок

12. общение

13. дыхание

14. играть важную роль

b) find false and true sentences

1. The alimentary tract starts with the mouth.

2. The food is broken up into smaller pieces in the stomach.

3. The lips are lined with mucous membrane.

4. The mouth is usually moist.

5. The nose is located in the mouth.

6. The stomach swallows food and drink that go down to the person’s mouth.

7. The tongue, lips and jaw are used to produce sounds.

8. The mouth doesn’t play an important role in communication.

9. Infants can instinctively suck.

10. Lips don’t play part in sexual attractiveness.

III. Read parts 3 and 4.

A) Complete the sentences using synonyms.

a) According to etiquette, the mouth is kept closed, especially when chewing.

b) Lips can be adorned with lipstick or lip gloss.

c) Both men and women, however, apply lip balm.

d) One of the first symptoms of age on the human face is the increase in prominence of the nasolabial folds.

B) find equivalents for these, define the parts of speech

1. to chew

2. according to

3. to soothe

4. chapped lips

5. to pierce

6. uvula

7. philtrum

8. groove

9. nasolabial

10. to fail

11. to fuse

12. hare’s lip

13. cleft palate

IV.

A. Answer the questions.

1. What is the oral cavity like?

2. Where is it located?

3. What parts does it contain?

4. What functions does it have?

5. How can the lips be adorned/protected?

6. What is the philtrum like?

7. When can a hare’s lip and/or cleft palate result?

B. Tell the group about the oral cavity.

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