Advertisements
Advertisements
प्रश्न
Name the types of teeth seen in humans.
थोडक्यात उत्तर
Advertisements
उत्तर
Human teeth are of four kinds:
- Incisors are the four front teeth at the middle of each jaw. They are chisel-shaped for biting and cutting.
- Canines are one on either side of the incisors in each jaw. They are pointed for tearing the food.
- Premolars are two on each side of canines in each jaw. They help in crushing and grinding the food.
- Molars are the last three teeth on each side in each jaw. They have a broad uneven surface for finer crushing and grinding of ingested food.
shaalaa.com
या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
APPEARS IN
संबंधित प्रश्न
| 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. |
- Name the organ A.
- Name (i) liquid B, and (ii) organ C.
- What are the digestive enzymes D, E and F?
- Name the projections G present on the inner wall of organ A.
- Name (i) tube H (ii) part I (iii) opening J, and (iv) process K.
Gastric juice contains
Study the following dental formula and then answer the question that follow:
`"i" 3/4 "c" 0/0 "pm" 0/1 "m" 1/1`
Is the dentition that of a carnivore or herbivore? Give a reason to support your answer.
Fill in the blanks.
Pepsin acts on ________ to change them into _______ and __________.
Define with examples: Carnivores
Name the enzymes secreted by the following: Salivary glands
Name the enzymes of pancreatic juice, the substrates they digest, and the end products.
How do the salivary glands come to know that there is food in the mouth and it is time to secrete saliva?
Liver produces for ______ the digestion of fat.
Curdling of milk protein is done by ______.
