Medications administered intravenously can provide much higher effective concentrations than other delivery methods
Indicate whether the statement is true or false
TRUE
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The most common dental anesthetic used is lidocaine. Lidocaine blocks voltage-gated Na+ channels. Where along the facial nerve would you expect lidocaine to be active?
A. along the cell body B. at the dendrite C. along the axon D. at the axon terminals E. at the synaptic cleft
Water-soluble hormones affect target cells by binding to __________.
A) adenylate cyclase B) cytoplasmic receptors C) protein kinases D) cAMP E) plasma membrane receptors
Blood plasma is 90% water.
Answer the following statement true (T) or false (F)
Growth factors are local regulators that _____
A) are modified fatty acids that stimulate bone and cartilage growth B) are found on the surface of cancer cells and stimulate abnormal cell division C) bind to cell-surface receptors and stimulate growth and development of target cells D) convey messages between nerve cells