Answer:
Birth defects are structural changes present at birth that can affect almost any part or parts of the body (e.g., heart, brain, foot). They may affect how the body looks, works, or both. Birth defects can vary from mild to severe.
prenatal diagnosis: examples include heart defects, cleft lip or cleft palate, and spina bifida. Teratogenic disorders occur when the baby is exposed to substances during pregnancy that cause abnormalities, otherwise known as “teratogens.” Babies are very sensitive in the first trimester, when all of the organs are developing.
Answer:
The correct answer is option D- oligodendrites and Schwann cells.
Explanation:
Neuroglia or glial cells are the cells in the nervous system which support, protect and maintain the neurons. These neuroglia cells protect the neurons as they insulate the axons and dendrite by forming a sheath around the neurons called the 'myelin sheath".
Two different types of glial cells form this myelin sheath in CNS and PNS: Schwann cells in PNS while oligodendrocytes in CNS. These myelin sheaths provide insulation as they are formed by the spiral wrapping of the plasma membrane which is made up of hydrophobic molecule.
Thus, option D- oligodendrocytes and Schwann cells are the correct answer.
Answer:
Explanation:
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