Several nerve fibers converging onto one neuron amplifies impulses.
Answer the following statement true (T) or false (F)
False
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Answer the following statements true (T) or false (F)
1. The symbol for a sodium atom that has lost one electron would be Na. 2. The symbol for a sodium atom that has lost one electron would be Na+. 3. Atom X has eight electrons, two in its first energy level and six in its second energy level. It would most likely form an ion with a plus 2 charge. 4. Covalent bonds do not usually dissociate in water. 5. Covalent bonds dissociate into ions when dissolved in water.
Structure E is the
A) synovial membrane. B) joint capsule. C) hyaline cartilage. D) compact bone. E) periosteum.
Transcellular transport of intestinal calcium is accomplished by entry into the epithelial enterocytes via
A) a sodium-iodide transporter. B) an amino acid transporter (MCT8). C) CaSR (calcium sensing receptor). D) osteoclasts. E) apical calcium channels (TRPV6 = ECaC).
Which of the following does not occur to compensate for a fall in blood pressure below normal?
a. cardiac output is increased. b. total peripheral resistance is decreased. c. heart rate is increased. d. venous vasoconstriction occurs. e. stroke volume is increased.