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Accessory Glands

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Question

Write the answers:

(a) Name some organ systems in the human body.

(b) Name the organs of the digestive system.

(c) Where are the salivary glands located?

(d) Name the juices which help to digest food in the small intestine.

(e) Which organs help in the function of respiration?

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Solution

(a) Some organ systems in the human body are the digestive system, respiratory system, excretory system and the circulatory system.

(b) Some organs of the digestive system are the tongue, stomach, small intestine, liver, pancreas and large intestine.

(c) Salivary glands are present inside the mouth and they secrete saliva.

(d) The small intestine secretes intestinal juice and it receives bile juice from the liver, and pancreatic juice from the pancreas. These juices carry out the complete digestion of all food components including carbohydrates, fats and proteins.

(e) Organs which help in the function of respiration are:

• Nose

• Lungs

• Trachea

• Bronchi

• Alveoli

• Diaphragm

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Similar questions

Label the following parts in Figure 2.2 and name them.

(a) The largest gland in our body.

(b) The organ where protein digestion starts.

(c) The organ that releases digestive juice into the small intestine.

(d) The organ where bile juice is stored.

Q. (a) Name the main organs of the human digestive system. Also name the associated glands.
(b) How do carbohydrates, fats and proteins get digested in human beings?

Q. Assertion :Organ-system is the system in which several organs work together for the same function, e.g., digestion, circulation and respiration. Reason: The organ-system helps in efficient working of the body.

Q. The functions of the organs of digestion are listed below. Write the name of one organ from the lost against each phrase stomach, liver, small intestine, oesophagus, mouth, large intestine.
(a) no digestion takes place here _________________
(b) food is partly digested here in an acidic medium ________________
(c) digest and also absorbs food _______________
(d) takes food from the mouth to the stomach _______________
(e) starch is partly digested here ________________
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Q. The partially digested food coming from the stomach of a person enters a long and narrow organ A in his body. The organ A receives the secretion of two glands : liver and pancreas. Liver secretes a greenish-yellow liquid B which is normally stored in the organ C. Pancreas secretes pancreatic juice which contains three digestive enzymes D, E and F. The intestinal juice completes the process of digestion of food. The inner wall of organ A has millions of tiny finger-like projections G which help in the rapid absorption of digested food into blood stream. The undigested part of food then passes into wider tube H which absorbs most of the water from undigested food. The last part of tube H called I stores this undigested food (or waste) for some time. The undigested food is then passed out though opening J as faeces in the process known as K.
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(b) Name (i) liquid B, and (ii) organ C.
(c) What are the digestive enzymes D, E and F?
(d) Name the projections G present on the inner wall of organ A.
(e) Name (i) tube H (ii) part I (iii) opening J, and (iv) process K.

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