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Which of the following nonhormonal chemical messengers is important in local control of blood flow and blood clotting?

Which of the following nonhormonal chemical messengers is important in local control of blood flow and blood clotting?

QUESTION 1 * Hormones are specific to particular tissues because Answer they will only interact with target cells at a synapse. [http://www.bezern.com/] they are released next to target tissues, so they cannot interact with other cells. [http://www.bezern.com/] target tissues display the appropriate receptor for a particular hormone. [http://www.bezern.com/] they can only be released following depolarization of the target cell. [http://www.bezern.com/] all of the above 1 points QUESTION 2 * In humans, fertilization usually occurs ________ after intercourse, if an egg is present. [http://www.bezern.com/] Answer 24-48 hours 3-6 days 6-24 hours 7-10 days 10-12 days 1 points QUESTION 3 * Research on the aging process shows that wounds of the elderly heal more slowly and that they are more susceptible to disease. [http://www.bezern.com/] These are problems associated with an aging ________ system. [http://www.bezern.com/] Answer respiratory immune integumentary digestive endocrine 1 points QUESTION 4 * Nitric oxide is produced by cells lining the blood vessels; this chemical messenger regulates the contraction of smooth muscle in the digestive tract as well as local blood flow in various tissues of the body. [http://www.bezern.com/] Answer True False 1 points QUESTION 5 * The levels of potassium and sodium in the body are regulated primarily by the hormone aldosterone. [http://www.bezern.com/] Answer True False 1 points QUESTION 6 * If diabetes is left untreated, which of the following could develop as a result? Answer neural disorders kidney failure blindness cardiovascular disorders all of the above 1 points QUESTION 7 * Which of the following organs is part of the forebrain? Answer hypothalamus thyroid anterior pituitary thymus posterior pituitary 1 points QUESTION 8 * In order for a hormone to cause a response, it must first bind to an appropriate receptor on its target cell. [http://www.bezern.com/] Answer True False 1 points QUESTION 9 * Which of the following organs is not fully developed in a fetus and is therefore bypassed by the ductus aerteriosus? Answer liver pancreas heart lungs bladder 1 points QUESTION 10 * The process by which the blastocyst becomes buried within the endometrial lining of the uterus is: Answer fertilization. [http://www.bezern.com/] implantation. [http://www.bezern.com/] morphogenesis. [http://www.bezern.com/] differentiation embryonic development. [http://www.bezern.com/] 1 points QUESTION 11 * Disorders associated with the endocrine system can be caused by problems with hormone production or lack of receptors for the hormones on the target cells. [http://www.bezern.com/] Answer True False 1 points QUESTION 12 * When the amount of thyroxine in the body increases, the basal metabolic rate of the body also increases. [http://www.bezern.com/] Answer True False 1 points QUESTION 13 * During puberty, the secretion of GnRH causes the secretion of ________, which in turn stimulate(s) the production of sex hormones. [http://www.bezern.com/] Answer LH and FSH oxytocin and prolactin insulin growth hormone oxytocin and growth hormone 1 points QUESTION 14 * Which of the following is true regarding an aging nervous system? Answer Neurons continue to reproduce to replace damaged neurons, but at a slower pace. [http://www.bezern.com/] The brain increases slightly in size. [http://www.bezern.com/] Lenses of the eyes stiffen, making it more difficult to focus. [http://www.bezern.com/] Balance and motor skills are affected; the senses of smell and taste are not affected. [http://www.bezern.com/] The number of connections between neurons of the brain decrease. [http://www.bezern.com/] 1 points QUESTION 15 * Which of the following nonhormonal chemical messengers is important in local control of blood flow and blood clotting? Answer prostaglandins nerve growth factor tumor angiogenesis growth factor histamine epidermal growth factor

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