Whatever the precise number of cases of aids, deaths from the opportunistic infections that are associated with end-stage hiv disease accounted for a very large proportion of the total mortality among young men and women in new york city in 1989. among men aged 25 to 44, aids was the leading cause of death: 31.6 percent of deaths of men aged 25 to 34 and 35.2 percent of deaths of men aged 35 to 44. among women aged 25 to 34, aids accounted for 26.1 percent of all deaths; in addition, 10 percent of the mortality among women aged 15 to 24 and 17 percent of the mortality among women aged 35 to 44 was also directly attributable to aids?

Choose the incorrect statement (a) the motor end plate membrane is only capable of generating graded potentials, but it is contiguous with the skeletal muscle sarcolemma, which can generate action potentials. (b) propagation of an action potential through the t-tubules into the sarcoplasmic reticulum triggers the release of ca++ into the cytoplasm of a skeletal muscle fiber. (c) the generation of suprathreshold endplate potentials in multiple muscle fibers could be due to the increased frequency of action potential generation at the axon hillock of a single motor neuron. (d) a greater amount of ach would be found in the presynaptic vesicles of a motor unit that fired several action potentials after exposure to botulinum toxin, than in a motor unit that fired several action potentials after exposure to the venom of the krait snake (which contains α-bungarotoxin).