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- Oxytocin secretion involves a positive loop during parturition True FalseWhich of these is not true about the physiologic effects of estrogen? Group of answer choices Raising of uterine threshold to contractile stimuli Stimulation of prolactin secretion Blocking the action of prolactin on the breast Decreasing LDL cholesterol Anti-osteoporosisDisorder of Sex Determination Now that you have reviewed typical sexual determination in humans, it is time to review some case studies of patients that present with sex determination disorders. Using the symptoms presented, research online to determine the nature of the disorder, its mechanism (what causes the disorder) and also any complications and treatment options that may exist. Case 1 A 16-year old patient presents with the following symptoms: Presents as normal external female Did not develop breasts at puberty Did not proceed through menarche (first menstrual cycle) Genetic karyotyping revealed XY Gonadal 'streaks' found upon internal examination Diagnosis Mechanism Possible Complications and Recommendations
- Which of the following is true regarding LH signaling in men? O Stimulates leydig cells to produce testosterone O Stimulates the sertoli cells to increase spermatogenesis O Stimulates the leydig cells to produce inhibin OStimulates the granulosa cells to increase spermatogenesis Stimulates the theca cells to produce testosteroneTrue or false FSH binds to cells in the testes FSH also binds to cells in the ovariesCartererces Deg Orine The human sleep-wake cycle is regulated by melatonin. The synthesis of melatonin is regulated by light exposure (Figure 0. The human body typically develops a sleep-wake rhythm that does not respond quickdy to change. Long term exposure to extended periods of bright light after sunset is most lkely to affect a person in which of the following ways? Newsela nfermation AP Bialogy Perilods 1 and 2 Grading perod Hghschool MPI.Highschool MP2 Hihschool MPA Hghschool M Noon 12:00 P.M. Locaton Melatonin Secretion Stops 7:30 Å.M. it 6:00 A.M. Meeting days Mon Tue Wed Thu i Light-Dark Cycle 6:00 P.M. 9:00 P.M. Melatonin 2:00 AM ++ 12:00 Deepest 12:00 AM. Midnight Secretion * Starts Sleep Figure 1. Key physiological points in the human sleep wake cycle O Melatonin synthesis will be increased, and the person will quickly fall asleep. O Melatonin synthesis will be inited, and the person will have difficulty sleeping O Melatonin synthesis will be increased and the entire sleep…
- Malt hormOca and tbar Anoctiomo Direction. Match col umn A to column B. A 1. Luteinizing normone (LH) 2. Follicle-Stimulating Hormone (FSH) 3. Testosterone x. produced by the cells located between the seminiferous fubules. y. stinaulates the secretion of the sex hor one Z. stimulates sem production in the se niniferous tubulesA B C D Hypothalamus Pituitary glands Ovaries Uterus Hormonal Nervous Dilation Placental Expulsion Positive Negative Use the table above to complete the following sentence. Oxytocin, an important hormone involved in parturition, is produced by the ____A____ and released through ____B____ stimulation. Oxytocin stimulates uterine contractions which in turn stimulate the release of prostaglandins. Both oxytocin and prostaglandins are released during the ____C____ stage of labour through a ______D____ feedback loop. A:AnswerB:AnswerC:AnswerD:AnswerYour Physician ordered oxytocin IM injection after the delivery of the placenta to your patient. What do you think is the mechanism of action of the drug given? Improves muscle tone of the uterus All of these Prostaglandin drug use for emergency of postpartum bleeding Prevents excessive bleeding by helping the Cerus to contract
- ACTIVITY 2 Male Hormones and Their Panciors Direction. Match colu 1n A to column B. A B 1. Luteinizing hrmone (LH) 2. Follicle-Stimulating Hormone (FSH) 3. Testosterone x. produced by the cells located between the Seriniferous tbules. y. stimulates the secretion ef the sex homone z. stimulates spœrm production in the senuaifeus fuules Guided Questions! 1. Why do you have your broad shoulders, facial hair, and muscles? 2. During in the onset of puberty, what happen to the teenage beys?estion In polycystic ovarian syndrome, androgens can be produced in excess. What effects would this potentially have? C Menstrual irregularity Acne hirsutism (hair on face and abdomen) all of these MacBook Pro Search or type URL +Hormone that enters the cell and binds to intracellular receptor is Cortisol GNRH GH FSH