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Prolactin: Quiz


Question 1: Prolactin provides the body with sexual gratification after sexual acts: The hormone counteracts the effect of ________, which is responsible for sexual arousal.

Question 2: Significant heterogeneity of the molecule has been described, thus bioassays and immunoassays can give different results due to differing ________, phosphorylation, sulfation, as well as degradation.
Protein biosynthesisAmino acidUbiquitinGlycosylation

Question 3: However, the high levels of ________ during pregnancy act directly on the breasts to stop ejection of milk.

Question 4: Excess thyrotropin-releasing hormone (TRH), usually in primary ________
Graves' diseaseHypothyroidismHashimoto's thyroiditisHypopituitarism

Question 5: Levels can rise after exercise, meals, sexual intercourse, minor surgical procedures [8], or following ________.
ConvulsionSymptomICD-10 Chapter XVIII: Symptoms, signs and abnormal clinical and laboratory findingsSeizure

Question 6: These cells differentiate into oligodendrocytes, the cells responsible for the formation of myelin coatings on ________ in the central nervous system.
Schwann cellNeuronAxonAlpha motor neuron

Question 7: The activation of the prolactin receptor also results in the activation of mitogen-activated protein kinases and ________.
CD117Epidermal growth factor receptorSrc (gene)HER2/neu

Question 8: Prolactin levels may be checked as part of a sex hormone workup, as elevated prolactin secretion can suppress the secretion of FSH and GnRH, leading to hypogonadism, and sometimes causing ________ in men.
HypersexualitySexual dysfunctionSexual fetishismErectile dysfunction

Question 9: ________, another hormone, is also released, which triggers milk let-down.

Question 10: The molecule is folded due to the activity of three ________.
Disulfide bondMethylationAmino acidPeptide bond

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