Explain how both voluntary and involuntary responses are associated with micturition
What will be an ideal response?
The emptying of the bladder is a combination of voluntary and involuntary actions and is called the micturition reflex. The bladder fills with urine; stretch receptors send afferent signals into the CNS and stimulate parasympathetic activity directed at the bladder wall and inhibit motor neurons supplying the external sphincter, allowing it to relax. Parasympathetic system causes the bladder to contract, and urine can be excreted past the relaxed external sphincter. Voluntary signals can override the reflex so that urination can occur at the appropriate time.
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Which of the following descriptions best matches the term myometrium?
A) thick layer of smooth muscle cells B) supports the uterus anteriorly C) supports the uterus laterally D) consists of a functional zone and a basilar zone E) After ovulation, the ovum is captured by it.
Water loss through the epidermis could cause a serious threat to health and well-being. Which of the following protects us against excessive water loss through the skin?
A) Lamellated granules of the cells of the stratum granulosum, a glycolipid that is secreted into extracellular spaces. B) The size and shape of the cells that make up the stratum spinosum, as well as the thick bundles of intermediate filaments. C) The dermis is the thickest portion of the skin and water cannot pass through it. D) Fat associated with skin prevents water loss.
__________ disease is a condition resulting in cyanosis and pain in digits due to excessive vasoconstriction.
Fill in the blank(s) with the appropriate word(s).
Your alarm pulls you from sleep while you were in the middle of a vivid dream. You were most likely
A. exhibiting beta wave activity. B. exhibiting gamma wave activity. C. in REM sleep. D. in NREM sleep. E. All of the answer choices are correct.