Скачать презентацию M Kh Dulaty Taraz State University Department of Скачать презентацию M Kh Dulaty Taraz State University Department of

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M. Kh. Dulaty Taraz State University Department of biology M. Kh. Dulaty Taraz State University Department of biology

• The pharynx is a part of the conducting zone of the respiratory • The pharynx is a part of the conducting zone of the respiratory system and also a part of the digestive system. It is the part of the throat immediately behind the nasal cavity at the back of the mouth and above the oesophagus and larynx. The pharynx is made up of three parts. The lower two parts– the oropharynx and the laryngopharynx are involved in the digestive system. .

• The oesophagus commonly known as the gullet, is an organ which consists • The oesophagus commonly known as the gullet, is an organ which consists of a muscular tube through which food passes from the pharynx to the stomach. The oesophagus is continuous with the laryngeal part of the pharynx. • Its length averages 25 cm, varying with height. It is divided into cervical, thoracic and abdominal parts.

• • The small intestine or small bowel is the part of the • • The small intestine or small bowel is the part of the gastrointestinal tract between the stomach and the large intestine, and is where much of the digestion and absorption of food takes place. The small intestine has three distinct regions – the duodenum, jejunum, and ileum.

• The average length of the small intestine in an adult human male • The average length of the small intestine in an adult human male is 6. 9 m (22 ft 8 in), and 7. 1 m (23 ft 4 in) in an adult female. It can vary greatly, from as short as 4. 6 m (15 ft) to as long as 9. 8 m (32 ft). Recent studies indicate that small intestine may be shorter, around 3. 5 m (11 ft 6 in), and that the length is less affected by age after childhood than expected

• The large intestine, also called the colon or the large bowel, is • The large intestine, also called the colon or the large bowel, is the last part of the digestive system in vertebrates. Water is absorbed here and the remaining waste material is stored as feces before being removed by defecation.

• The length of the adult human colon is, on average, for women • The length of the adult human colon is, on average, for women 155 cm (range of 80 to 214 cm) and for men 166 cm (range of 80 to 313 cm).

• • The cecum and the appendix The ascending colon The right colic • • The cecum and the appendix The ascending colon The right colic flexure (hepatic) The transverse colon The transverse mesocolon The left colic flexure (splenic) The descending colon The sigmoid colon – the v-shaped region of the large intestine