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nika2105 [10]
2 years ago
14

When the micturation reflex is initiated, the brain responds by __________ action potentials (APs) in somatic motor neurons, res

ulting in the relaxation of the __________ urinary sphincter so urine can be voided.
Biology
1 answer:
kozerog [31]2 years ago
3 0

Answer:

1. Reducing

2. External

Explanation:

The external urinary sphincter, also called as external urethral sphincter consists of skeletal muscles. During micturition reflex, the micturition center present in the brain serves to inhibit the somatic motor neurons by reducing their action potential. These somatic motor neurons innervate in the external urinary sphincter.  

Inhibition of somatic motor neurons of the external urinary sphincter results in relaxation of the sphincter to facilitate the act of urination.

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At the end of _____ and cytokinesis there are four haploid cells. At the end of _____ and cytokinesis there are four haploid cel
kotegsom [21]

Answer:

At the end of<u> telophase II </u>and cytokinesis, there are four haploid cells.cells.

Explanation:

During telophase II the sister chromosomes separate from each other and move to the opposite ends of the cell. Once that the chromosomes are in the opposite ends, the cytokinesis starts, this is the division of the cytoplasm that will give two daughter haploid cells.

We have to remember that there will be four haploid cells because there are two cells, which are the result of meiosis I, that will go into meiosis II to give these four daughters haploid cells. Also, the phases in meiosis I and II are very similar. Both of them have prophase, metaphase, anaphase, and telophase.

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frosja888 [35]
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notsponge [240]

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