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Luteinizing hormone: Quiz

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Question 1: In the male, LH acts upon the Leydig cells of the testis and is responsible for the production of testosterone, an ________ that exerts both endocrine activity and intratesticular activity on spermatogenesis.
EstrogenProgesteroneEstradiolAndrogen

Question 2: The biologic ________ of LH is 20 minutes, shorter than that of FSH (3–4 hours) or hCG (24 hours).
Radioactive decayCosmic rayNuclear fissionHalf-life

Question 3: In the male, where LH had also been called Interstitial Cell Stimulating Hormone (ICSH),[3] it stimulates Leydig cell production of ________.
ProgesteroneTestosteroneEstradiolDehydroepiandrosterone

Question 4: In case of a ________ luteal function will be further maintained by the action of hCG (a hormone very similar to LH) from the newly established pregnancy.
Reproductive medicineSexual intercoursePrenatal developmentPregnancy

Question 5: The detection of the ________ surge indicates impending ovulation.
Follicle-stimulating hormoneGonadotropin-releasing hormoneEndocrine systemLuteinizing hormone

Question 6: As sperm can stay viable in the woman for several days, LH tests are not recommended for ________ practices, as the LH surge typically occurs after the beginning of the fertile window.
PregnancySafe sexCondomBirth control

Question 7: Luteinizing hormone (LH, also known as lutropin[1]) is a ________ produced by the anterior pituitary gland.
TestosteroneHormoneProgesteroneEndocrine system

Question 8: During the reproductive years, relatively elevated LH is frequently seen in patients with the ________; however it would be unusual for them to have LH levels outside of the normal reproductive range.
Congenital adrenal hyperplasia due to 21-hydroxylase deficiencyPolycystic ovary syndromeAndrogen insensitivity syndromeHypopituitarism

Question 9: They are commonly used in infertility therapy to stimulate follicular development, notably in ________ therapy.
Artificial inseminationIn vitro fertilisationPregnancyAssisted reproductive technology

Question 10: In children with ________ of pituitary or central origin, LH and FSH levels may be in the reproductive range instead of the low levels typical for their age.
Congenital adrenal hyperplasiaPrecocious pubertyHypopituitarismAndrogen insensitivity syndrome







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