Consider a cell of the peripheral nervous system (PNS) that synapses on the salivary gland. B-1.The body of this cell could be in (the brain) (the spinal cord) (the salivary gland) (a ganglion) (none of these places) (one of these – can’t predict because location depends on what NT the neuron releases). B-2. This cell should be considered (efferent) (afferent) (either way) (neither term is appropriate) (both – sometimes it is afferent and sometimes it is efferent) (beats me). C. The duct cells of the salivary gland are surrounded by myoepithelial cells. The myoepithelial (ME) cells are similar to smooth muscle. Stimulation of the ME cells by the PNS increases flow through the ducts. Stimulation in this case probably results in a change in (length of myosin fibers) (activ
‘The major agonists of secretion by acinar cells in the salivary gland are acetylcholine (AcCh) and norepinephrine (NE).
Please choose the right answer for B1 B2 and C1
B. Consider a cell of the peripheral nervous system (PNS) that synapses on the salivary gland.
B-1.The body of this cell could be in (the brain) (the spinal cord) (the salivary gland) (a ganglion) (none of these places) (one of these – can’t predict because location depends on what NT the neuron releases).
B-2. This cell should be considered (efferent) (afferent) (either way) (neither term is appropriate) (both – sometimes it is afferent and sometimes it is efferent) (beats me).
C. The duct cells of the salivary gland are surrounded by myoepithelial cells. The myoepithelial (ME) cells are similar to smooth muscle. Stimulation of the ME cells by the PNS increases flow through the ducts. Stimulation in this case probably results in a change in (length of myosin fibers) (activation state of myosin) (availability of myosin binding sites on actin) (the distance between the Z lines in the ME cells) (length of actin fibers) (none of these – hormones don’t affect contraction of muscle).
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