_____________ are responsible for regulating the sensitivity of the muscle spindle.
A) Alpha motor neurons
B) Sensory neurons
C) Gamma motor neurons
D) Golgi tendon organs
E) Inhibitory interneurons
Ans: C) Gamma motor neurons
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The central nervous system contains a dense network of lymphatic capillaries
Indicate whether this statement is true or false.
Which of the following statements about the lipid bilayer portion of the plasma membrane is FALSE?
a. Some membrane phospholipids form transmembrane channels that allow ion movement. b. The lipid bilayer defines the boundaries of the cell. c. The lipid bilayer forms a permeability barrier to polar and charged substances. d. The lipid bilayer confers fluidity to the plasma membrane. e. All of the above statements are true.
Appositional growth deposits a new layer of bone tissue
A. in the epiphyseal plate of long bones. B. on the surface of the bone. C. on spongy bone, but not compact bone. D. in the secondary ossification center of the epiphyses. E. in interstitial areas.
If the larynx is obstructed at the level of the vocal cords, an "emergency" airway access can be made below the obstruction by puncturing the membrane between the
A. hyoid bone and thyroid cartilage. B. thyroid and epiglottic cartilages. C. thyroid and cricoid cartilages. D. arytenoid and cricoid cartilages.