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Which of the following statements is not correct with respect to the epithelial tissue?
1. It covers the external surface of the body and the internal surface of many organs.
2. The neighbouring cells are held together by cell junctions and there is very little extracellular material.
3. The epithelial cells rest on a cellular basement membrane that separates it from underlying connective tissue.
4. There is no blood vessel supplying the nutrients to the epithelial cells.
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Match each item in Column I with one in Column II and select the correct answer from the codes given:
COLUMN I |
COLUMN II |
||
A |
Holocrine gland |
a |
Pancreas |
B |
Merocrine gland |
b |
Mammary gland |
C |
Apocrine gland |
c |
Sebaceous gland |
Codes
A | B | C | |
1. | a | b | c |
2. | c | b | a |
3. | c | a | b |
4. | a | c | b |
Which one of the following types of cell is involved in making of the inner walls of large blood vessels?
1. Cuboidal epithelium
2. Columnar epithelium
3. Squamous epithelium
4. Stratified epithelium
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Identify the incorrectly matched pair:
Type of epithelium | Location | |
1. | Simple squamous | Blood vessels and alveoli |
2. | Simple cuboidal non brush bordered epithelium | Proximal convoluted tubule |
3. | Columnar epithelium | Stomach and small intestine |
4. | Ciliated epithelium | Bronchioles and fallopian tubes |
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Unicellular glands located in the alimentary canal are called as:
1. Paneth cells
2. Peyer’s patches
3. Goblet cells
4. Histiocytes
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What is the best description of an endocrine gland?
1. | They secrete mucus, saliva, ear wax and digestive enzymes |
2. | Their products are released through ducts or tubes |
3. | Unlike exocrine glands, they are not modified epithelium |
4. | Their secretions are secreted directly into the fluid bathing the gland |
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What type of epithelial cell junctions facilitate the cells to communicate with each other?
1. Gap junctions
2. Adhering junctions
3. Tight junctions
4. Plasmodesmata
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