Inhibition of skeletal muscles occurs when a certain neurotransmitter causes IPSPs to develop at the neuromuscular junctions
Indicate whether the statement is true or false
F
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Compartments A and B are separated by a membrane that is permeable to K+ but not to Na+ or Cl-. At time zero, a solution of KCl is poured into compartment A and an equally concentrated solution of NaCl is poured into compartment B. Which would be true once equilibrium is reached?
A. Diffusion of K+ from A to B will be greater than the diffusion of K+ from B to A. B. The electrical potential difference and diffusion potential due to the concentration gradient for K+ will be equal in magnitude and opposite in direction. C. The concentration of Cl- will be higher in B than it was at time zero. D. The concentration of Na+ in A will be higher than it was at time zero. E. There will be a potential difference across the membrane, with side B negative relative to side A.
The fiber type that gives connective tissue great tensile strength is ________
A) muscle B) collagen C) reticular D) elastic
Testosterone stimulates development of the secondary sex characteristics, spermatogenesis, and libido.
Answer the following statement true (T) or false (F)
An increase in the partial pressure of CO2 causes bronchioles to
A. constrict. B. dilate.