Question

Where do you find the following in the human body?
(i) Nodes of Ranvier
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(ii) Ciliated epithelium
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(iii) Smooth muscles
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(iv) Fluid connective tissue
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Answer 1

Answer:

only fourth I know it is found in the cells of human beings

Answer 2

Answer:

(i) Nodes of Ranvier:

• Ranvier nodes are microscopic gaps in myelinated axons. Their role is to accelerate the propagation of potential for action along the axon through salutatory conduction.
• The Ranvier Nodes are the gaps between the Schwann cells myelin insulation that isolates the axons of neurons.

(ii) Ciliated epithelium:

• “Ciliated epithelium” is a thin, hair-like tissue on it called cilias. It is present in respiratory tract and in women's fallopian tubes.

(iii) Smooth muscles:

• Smooth muscle typically forms blood vessel supporting tissue and “hollow internal organs” such as the intestine, stomach, and bladder.

(iv) Fluid connective tissue:

• Blood and lymph are connective tissues that are liquid. In a “liquid extracellular matrix”, cells circulate.
• The blood-circulating parts are all obtained from hematopoietic stem cells in the ‘bone marrow’.