ERGONOMIC keyboards such as "Microsoft Natural Keyboard" can help prevent injuries from using the keyboard for long periods of time. Posture related injuries result from long use of laptops and computers. The ergonomic keyboards are easily adjustable by adjusting height in a particular angle.
The valves are responsible for preventing blood from flowing in the wrong direction, they are present in the veins, and the arteries don't need them because the aorta (biggest artery) pumps or in other words pushes it with such a force that no other force can change its direction, in the veins there is no structure present for pumping them as a result we have got valves so that they go in one direction...... the meaning of the word valve is to allow in one direction
Answer: B. cerebellum
When the cerebellum is
damage, it will result to cause problems in terms of coordination and balance. The
cerebellum is very similar to cerebrum having highly folded surface and has two
hemispheres. It is mainly associated with regulation and coordination of
balance, posture, movement, vasomotor and respiratory centers.
Most of the digested food is absorbed in the small intestine-- while the large intestine functions largely to reabsorb water.
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