Describe the physiology of penile erection
What will be an ideal response?
1 . Stimulation of the parasympathetic neurons on sexual arousal causes the release of the neurotransmitter nitric oxide.
2 . Nitric oxide diffuses into the smooth muscles, causing the release of cGMP that causes relaxation and dilatation of the smooth muscles of the penile arteries and trabeculae within the corpora cavernosa.
3 . Blood under pressure fills the cavernous bodies.
4 . The increased arterial blood flow and pressure compress the draining veins, preventing the outflow of blood and causing the penis to become rigid and erect.
5 . cGMP is broken down by the phosphodiesterase enzyme.
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Concerning the special qualities of human breast milk, nurses should be aware that:
1. frequent feedings during predictable growth spurts stimulate increased milk pro-duction. 2. the milk of preterm mothers is the same as milk of mothers who gave birth at term. 3. the milk at the beginning of the feeding is the same as the milk at the end of the feeding. 4. colostrum is an early, less concentrated, less rich version of mature milk.
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a. "Do you have any hearing problems?" b. "Are you having difficulty reading?" c. "Have you ever had a problem with bronchospasm?" d. "What other problems are being treated by your prescriber?"
A client admitted to a hospital is suspected to be brain dead. Which of the following would most likely be used to determine brain death?
A) Marked hypothermia B) Severe depression of the central nervous system C) Complete absence of brainstem reflexes D) Dilated pupils