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SCIN132 Week 6 Quiz 2017 (A++++++ Answer)

QuestionQuestion 1 of 32Some of the hormones produced by the anterior pituitary have an effect on other glands. Which of the following does not?A.LHB.ACTHC. growth hormoneD.TSHE. gonadotropic hormoneQuestion 2 of 32Why is the pancreas both an endocrine and an exocrine gland?A.because it produces both a neurotransmitter and a hormoneB.because it produces more than one hormoneC.because it produces at least one hormone that is delivered through a duct and one that is delivered to the bloodstreamD.because it has an outer cortex and an inner medullaE.because it is located within the abdominal cavity with ties to the gastrointestinal systemQuestion 3 of 32Which of the following is a feature of an endocrine gland?A.secretes a hormone directly into the bloodstreamB.secretes a hormone into a gland or ductC.the product of these glands is carried into the lumen of an organD.characterized by the salivary glandsE.they do not respond to a negative feedback systemQuestion 4 of 32The thyroid gland is locatedA.in the neck.B.in the brain.C.on top of the kidneys.D.near the ovaries or testes.E.near the small intestines.Question 5 of 32Which pancreatic hormone stimulates the uptake of glucose by cells?A.insulinB.glucagonC.estradiolD.epinephrineE.cortisolQuestion 6 of 32Which of the following statements is not true concerning the hypothalamus?A.The hypothalamus acts as the link between the nervous and endocrine systems.B.The hypothalamus regulates the internal environment of the body.C.The hypothalamus communicates with the somatic nervous system.D.The hypothalamus controls the glandular secretions of the pituitary gland.E.The hypothalamus produces antidiuretic hormone and oxytocin.Question 7 of 32What is the function of melatonin?A.regulate blood glucose levelsB.regulate blood calcium levelsC.aid in the differentiation of T lymphocytesD.control the daily sleep-wake cycleE.control the color of the skinQuestion 8 of 32Which of the following is not produced by the adrenal glands?A.epinephrineB.norepinephrineC.glucagonD.glucocorticoidsE.mineralocorticoidsPart 2 of 6 - 18.0/ 21.0 PointsQuestion 9 of 32What does being overweight have to do with infertility in women?A.Leptin levels are higher which impacts GnRH and FSH.B.The oviducts are blocked.C.Uterine tissue is located outside of the uterus causing pain and structural abnormalities.D.Follicles are larger than normal and many mature at one time.E.The uterus is displaced and the zygote has difficulty implanting.Question 10 of 32Menstruation occurs during what days of the uterine cycle?A.days 1-5B.days 1-13C.days 6-13D.days 15-28E.days 28-32Question 11 of 32During implantation, the zygote can be foundA.in the endometrium.B.in the oviduct.C.in the abdominal cavity.D.in the labium majora.E.in the labium minora.Question 12 of 32Where does fertilization of the egg normally occur?A.ovaryB.abdominal cavityC.fimbriaD.oviductE.vaginaQuestion 13 of 32Which of the following is a protist that causes an STD?A.Chlamydia trachomatisB.Neisseria gonorrhoeaeC.Trichomonas vaginalisD.Candida albicansE.Gardnerella vaginosisQuestion 14 of 32 0.0/ 3.0 PointsWhich of the following is not part of the male reproductive system?A.testesB.bladderC.epididymidesD.prostate glandE.urethraQuestion 15 of 32Meiosis is to gametes as fertilization is toA.zygote.B.chromosome.C.egg.D.sperm.E.mitosis.Part 3 of 6 - 21.0/ 21.0 PointsQuestion 16 of 32The adhering follicular cells that surround the egg are called theA.pronuclei.B.zona pellucida.C.corona radiata.D.cortical granule cells.E.outer cell mass.Question 17 of 32The umbilical arteries carryA.oxygen-rich blood to the developing fetus.B.oxygen-rich blood to the placenta.C.oxygen-poor blood to the developing fetus.D.oxygen-poor blood to the placenta.E.oxygen-rich blood to the mother.Question 18 of 32When cells take on specific structure and function, this is calledA.cleavage.B.growth.C.morphogenesis.D.differentiation.E.fertilization.Question 19 of 32Which of the following gives the correct order of layers the sperm crosses when entering the egg?A.corona radiata, zona pellucida, oocyte plasma membraneB.zona pellucida, oocyte plasma membrane, corona radiataC.oocyte plasma membrane, corona radiata, zona pellucidaD.corona radiata, oocyyte plasma membrane, zona pellucidaE.zona pellucida, corona radiata, oocyte plasma membraneQuestion 20 of 32Which of the following does not occur prior to or during stage 1 of labor?A.bloody showB.effacementC.uterine contractionsD.breaking waterE.dislodging of the placentaQuestion 21 of 32Which of the following occurs during the embryonic stage of development?A.Chorion appears.B.Nose, eyes, and ear become noticeable.C.Testes descend into scrotum.D.Heartbeat can be heard.E.Fingernails appear.Question 22 of 32The _______ is the first embryonic membrane to appear, and it is the first site of ___________.A.amnion, umbilical cord formationB.yolk sac, placenta developmentC.chorion, neural system developmentD.allantois, amniotic fluid formationE.yolk sac, blood cell formationPart 4 of 6 - 21.0/ 21.0 PointsQuestion 23 of 32The channels that provide for the movement of potassium in the resting neuron are _______.A.leakage and chemically gatedB.leakageC.chemically gatedD.voltage gatedQuestion 24 of 32The period of time when the neuron is totally insensitive to further stimulation and cannot generate another action potential isA.relative refractory periodB.membrane potentialC.absolute refractory periodD.repolarizationQuestion 25 of 32During the absolute refractory period, a neuron would need to be depolarized by _____ mV before another action potential could be generated.A.50 mVB.75 mVC.100 mVD.Another action potential cannot be generatedQuestion 26 of 32The minimum voltage that is required to generate an action potential is called the _______.A.propagation voltageB.depolarization voltageC.trigger voltageD.threshold voltageQuestion 27 of 32When measuring refractory periods, as the interval between stimuli decreases, the depolarization needed to generate the second action potential:A.decreasesB.stays the sameC.increasesQuestion 28 of 32What effect did decreasing the extracellular sodium have on the resting membrane potential?A.The resting membrane potential disappeared.B.The resting membrane potential became less negative.C.Only a small change occurred, because the sodium channels were mostly open.D.Only a small change occurred, because the resting neuron is not very permeable to sodium.Question 29 of 32What is the major cation found inside the typical nerve cell at rest?A.chlorideB.sodiumC.potassiumD.acetylcholinePart 5 of 6 -Answer the following question in your own words without using any resources. Your answer should be written in complete sentences using correct grammar, spelling, and terminology.Question 30 of 32Define the term "threshold."Question 31 of 32Briefly explain why an action potential cannot be initiated during the absolute refractory period.

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