To determine: The other context in which an individual learn about positive feedback in female reproduction.
Introduction: Feedback mechanism is defined as a closed loop system in which the output of a particular biochemical event is rooted back to the organ which affects the biochemical event. This feedback can either accelerate or decelerate the biochemical reaction. Based on the ability of the feedback signal to accelerate or decelerate there are two types of feedback mechanisms positive feedback and negative feedback. In positive feedback, the end product increases the overall
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Biology
- Positive feedback mechanism initiates the rhythmic contractions of labor. Determine the hormones involved in this feedback loop. a. relaxin and human chorionic gonadotropin (hCG) b. prostaglandins and oxytocin c. cortisol and aldosterone d. estrogens and progesteronearrow_forwardCompare the locations of the adrenal glands in the fetal pig with those in the human.arrow_forwardDrag and drop the missing words from the list below to complete the following sentences. Please note, the colour of the answer text must match the answer box. For example, the white texts can only be dragged into a white coloured box. Also, words may be used more than once. increased levels of estrogen and progesterone will result in ( negative, positive, increase, decrease) feedback to the hypothalamus and anterior pituitary to ( negative, positive, increase, decrease), ( LH, FSH, GnRh, LH AND FSH) production. This normally occurs during the ( FOLLICULAR STAGE, LUTEAL STAGE ) Decreased levels of estrogen and progesterone will result in ( negative, positive, increase, decrease) feedback to the hypothalamus and anterior pituitary to ( negative, positive, increase, decrease), (LH, FSH, GnRh, LH AND FSH) production. This normally occurs during the ( FOLLICULAR STAGE, LUTEAL STAGE ). Extremely high levels of estrogen near the end of the follicular phase will result in ( negative,…arrow_forward
- Prolactin does which of the following?a. stimulates breast milk secretionb. stimulates breast milk productionc. inhibits breast milk secretiond. inhibits breast milk productionarrow_forwardAccording to the graph below, estrogen will reach its peak concentration prior to ovulation. Predict the concentration of the other hormones by choosing low, medium, or higharrow_forwardAccording to the graph below, estrogen will reach its peak concentration prior to ovulation. Predict the concentration of the other hormones by choosing low,medium, or high.arrow_forward
- Match four of the hormones of the negative feedback numbered above with their function given below. Function: Hormone: Stimulates the development of an ovum Answer Stimulates the corpus luteum to release progesterone Answer Suppresses GnRH, FSH, and LH production in the follicular phase Answer Suppresses GnRH, FSH, and LH production in the luteal phase Answerarrow_forwardNegative feedback loops maintain homeostasis in the human body. During labour a positive feedback loop is an integral part of the process. A) What is a positive feedback loop? B) Describe the two positive feedback that is used during parturition. Make sure to include both hormones involved in parturition.arrow_forwardDescribe TWO positive feedback loops that are part of parturition and/or lactation. For each pathway, identify the mechanism that triggers the response, the glands, and the hormones involvedarrow_forward
- DRAW IT In mammals, milk production by mammary glandsis controlled by prolactin and prolactin-releasing hormone.Draw a simple sketch of this pathway, including glands, tissues,hormones, routes for hormone movement, and effects.arrow_forwardIn Florida it is particulary important to apply sunscreen when going outside, especially when expecting long exposure times. Our body will naturally respond to this UV radiation stimulus in what way? : Increase in the amount of melatonin Increase in the number of melanocytes produced Increase in the amount of DNA Increase in the activity of melanocytesarrow_forwardKnowing what you do about the feedback effects of testosterone on the anterior pituitary gland, explain the reason that male athletes who take anabolic steroids become temporarily sterile (anabolic steroids are steroids that mimic some actions of testosterone).arrow_forward
- Concepts of BiologyBiologyISBN:9781938168116Author:Samantha Fowler, Rebecca Roush, James WisePublisher:OpenStax College