In all living cells hydrostatic and osmotic pressures exist. Define these pressures and explain how they are used in the concept of tonicity of the cell
What will be an ideal response
Hydrostatic pressure is the pressure of water exerted on the cell membrane. Osmotic pressure is created by different concentrations of molecules in a solution separated by the cell membrane. Because these pressures are exerted on the membrane they can be used by the cell to change the shape of the cell, regulate substances entering and exiting the cell, and change the osmolarity of the cell.
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Fill in the blank(s) with correct word
Lower motor neurons of the spinal cord have their cell bodies in:
a. anterior grey horn b. lateral grey horn c. posterior grey horn d. anterior white column
________ is a disease that gradually destroys the myelin sheaths of neurons in the CNS, particularly in young adults.
Fill in the blank(s) with the appropriate word(s).
Which of the following is not associated with the large absorptive surface of the small intestine?
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