ACTIVITY PRESENTED BY – REYAANSH GUPTA 7-A. 

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ACTIVITY PRESENTED BY – REYAANSH GUPTA 7-A

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1.The Teeth. The primary function of teeth is mastication , which involves the cutting, mixing, and grinding food to allow the tongue and oropharynx to shape it into a bolus that can be swallowed. Teeth are made up of different layers — enamel, dentin, pulp, and cementum . Enamel, which is the hardest substance in the body, is on the outside of the tooth. The second layer is dentin, which is softer than enamel, and the deepest layer inside the tooth is pulp, which consists of nerves and blood vessels. Your teeth are divided into four types: incisors, canines, premolars and molars . At most, you have 32 permanent teeth, but you start with 20 baby teeth, which include only incisors, canines and molars. 

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The primary function of teeth is  mastication , which involves the cutting, mixing, and grinding food to allow the tongue and oropharynx to shape it into a bolus that can be swallowed. Teeth are  made up of different layers — enamel, dentin, pulp, and  cementum . Enamel, which is the hardest substance in the body, is on the outside of the tooth. The second layer is dentin, which is softer than enamel, and the deepest layer inside the tooth is pulp, which consists of nerves and blood vessels.   Your teeth are divided into four types:  incisors, canines, premolars and molars . At most, you have 32 permanent teeth, but you start with 20 baby teeth, which include only incisors, canines   and molars

Anatomy of the Tooth
enamel
dentine
Crown
pulp
gum
cementum
Root
root canal
root end opening
MEDICALNEWSTODAY

Incisors are used for cutting of food. Canines are used for tearing of food. 

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The tongue is a muscular organ in the mouth. 2.Tounge. 

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BITTER
SOUR
SALTY
BITTER
SOUR
SALTY
SWEET

The tongue is a muscular organ in the mouth

The four common tastes are sweet, sour, bitter, and salty.

Tounge helps in mixing up of saliva with food

It is sensitive and always moist because of saliva present in the mouth.  It is one of the sensory organ which sense the taste of substitute. It takes place in the process of digestive system.

3.Food Pipe (oesophagus). Windpipe (trochea} Oesophagus (food g•pel Lungs Can:e•. 

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Windpipe
(trochea}
Oesophagus
(food g•pel
Lungs
Can:e•

The food pipe (oesophagus) is part of your digestive system. It is the tube that carries food from your mouth to your stomach. It lies behind the windpipe (trachea) and in front of the spine.

The food we swallow passes through a pipe which leads to the stomach. This pipe is known as the food pipe or the oesophagus. Food reaches the stomach from pharynx.

It connects your mouth to your stomach. When you swallow food, the walls of the oesophagus squeeze together (contract).

4.The stomach. Esophagus Liver (faded) Adrenal glands Kidneys Gallbladder Transverse colon Diaphragm Stomach Spleen Pancreas. 

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Esophagus
Liver (faded)
Adrenal glands
Kidneys
Gallbladder
Transverse colon
Diaphragm
Stomach
Spleen
Pancreas

The stomach is a J-shaped organ that digests food. It produces enzymes (substances that create chemical reactions) and acids (digestive juices). This mix of enzymes and digestive juices breaks down food so it can pass to your small intestine. Your stomach is part of the gastrointestinal (GI) tract.

Stomach is a muscular structure found on the left side of the upper abdomen.

Most adults have roughly the same size stomach, even though people can weigh different amounts. Your empty stomach is about 12 inches long by 6 inches across at its widest point. As an adult, your stomach can expand to hold about 1 quart of food. Stomach is thich walled.The inner inning of the stomach secretes gastric juices which have mucus,hydrocloric acidand enzymes present in them. Mucus protects inner inning of the stomach.Hydrochloric acid kills bacteria.It also provides the acidic medium,needed for digestion of food,by the enzymes in the stomach.The enzymes in the stomach break down protiensto simpler substances like amino  acids.

5.The Small Intestine. Parts of the Small Intestine Stomac Small intestine Duodenum Jejunum Ileu Appendix Rectum Colon @ 2013 Terese Winslow LLC GcwL has certain rights. 

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Parts of the Small Intestine
Stomac
Small
intestine
Duodenum
Jejunum
Ileu
Appendix
Rectum
Colon
@ 2013 Terese Winslow LLC
GcwL has certain rights

the part of the intestine that runs between the stomach and the large intestine is known as small intestine.The small intestine is  about 6-7 meters long.It helps in digestion.

It absorbs nutrients. The small intestine is part of the digestive system. the function of the small intestine is to:

1)Churn and mix ingested food, making it into chyme.

2)Move the food along its entire length (into the colon)

Mix ingested food with mucus (making it easier to move)

3)Receive digesting enzymes from the pancreas and liver (via the pancreatic and common bile ducts)

The process of digestion ends in small intestine only

6.Large Intestine. C:\Users\HP\Desktop\REYAANSH\reyaansh p\download (2).jfif. 

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Large intestine is wider and shorter than the small intestine .It is about 1.5 meters in length.Here the excess of water and some minerals are absorbed from the undigested food .side by side food mixed with digestive juices reaches your large intestineThe long, tube-like organ that is connected to the small intestine at one end and the anus at the other. The purpose of the large intestine is to absorb water and salts from the material that has not been digested as food, and get rid of any waste products left over. By the time food mixed with digestive juices reaches your large intestine, most digestion and absorption has already taken place. The structure of the large intestine is very similar to that of the small intestine. colonis another name for the large intestine.

ACTIVITY PRESENTED BY – REYAANSH GUPTA 7-A

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