Life process class 10th

Life process important questions and answers


Differences between artery and vain. 

1.) Artery-

➡️Have thick elastic, muscular walls.
➡️Lumen* is narrow.
➡️Carry blood from heart to all body parts. 
➡️Carry oxygenated blood(except pulmonary* artery)

2.) Vein -

➡️Have thin, non-elastic walls.
➡️Lumen is wide(विस्तृत).
➡️Carry blood from all body parts to heart.
➡️Carry deoxygenated blood(except pulmonary vein).

Note:- *Lumen- It is the opening inside a tubular body structure that is lined by body tissue known as an epithelial* membrane.
Ex- large intestine, small intestine, vein, arteries.

➡️*Epithelial :- It is a tissue. Its shape is scutoid.
➡️It is tightly packed. 
➡️It formed a continuous sheet. 
➡️It has almost no intercellular space. 

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