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Biology : Human Digestive / Gastrointestinal System II

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Try the Quiz : Biology : Human Digestive / Gastrointestinal System II

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QUESTIONANSWEREXPLANATION
There are _______ pairs of salivary glands present in the mouth.3There are 3 pairs of salivary glands, namely the parotid, the sublingual, and the submandibular or submaxillary.
How many teeth does an adult human being normally have?32An adult human being normally has 32 teeth. The upper jaw and the lower jaw have 16 teeth each. Of these, 4 teeth are incisors, 2 teeth are canines, 4 teeth are premolars, and 6 teeth are molars. The last molar on each side of each jaw is called the wisdom tooth.
Which is not a part of the small intestine?caecumThe caecum is not a part of the small intestine. The small intestine has three parts, namely the duodenum, the jejunum, and the ileum. The large intestine has three parts, namely the caecum, the colon, and the rectum.
A tooth is made up of a solid bony tissue known as _______.dentineA tooth is made up of a solid bony tissue known as dentine.
The surface of the crown of the tooth is covered with a strong protective layer known as the _______.enamelThe surface of the crown of the tooth is covered with a strong protective layer known as the enamel. The enamel protects the vital internal parts of the tooth. A tooth gets decayed if its enamel is injured.
Which of the following prevents food from entering the trachea (wind pipe)?epiglottisThe epiglottis is a piece of cartilage at the root of the tongue. It gets depressed while swallowing food.
Which is not a part of the large intestine?ileumThe ileum is not a part of the large intestine. The large intestine has three parts, namely the caecum, the colon, and the rectum. The small intestine has three parts, namely the duodenum, the jejunum, and the ileum.
Which is the largest organ in the human body?liverThe liver is the largest organ in the human body. It secretes bile, which emulsifies fats and makes the food alkaline. Bile contains no enzymes.
Which of the following is the common passage for the food eaten and the air breathed?pharynxThe common passage for the food eaten and the air breathed is called the pharynx.
The part of the tooth inside the socket of the jaw is known as the _______.rootThe part of the tooth inside the socket of the jaw is known as the root whereas the part of the tooth outside the socket of the jaw is referred to as the crown.
The part of the tooth outside the socket of the jaw is known as the crown.TrueThe part of the tooth outside the socket of the jaw is known as the crown whereas the part of the tooth inside the socket of the jaw is referred to as the root.
The stomach is lined with mucous membrane.TrueThe stomach has a lining of mucous membrane having several tiny gastric pits.
The mucus in the stomach protects the stomach tissues from the action of enzymes.TrueThe mucus in the stomach protects the stomach tissues from the action of enzymes. The stomach has a lining of mucous membrane having several tiny gastric pits.
The caecum (a part of the large intestine) has a projection called the vermiform appendix.TrueThe caecum (a part of the large intestine) has a projection called the vermiform appendix. The vermiform appendix is a vestigeal organ, i.e., it has no function.
The large intestine is broader and longer than the small intestine.FalseThe large intestine is broader and shorter than the small intestine.
The pancreas is located in front of the stomach.FalseThe pancreas is located behind the stomach.
The minute projections present in the small intestine are called cilia.FalseThe minute projections present on the inner lining of the wall of the ileum (a part of the small intestine) are called villi.

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