ANAT.+PHYSIO.2-LAB.MAN. >CUSTOM<
20th Edition
ISBN: 9781264303090
Author: VanPutte
Publisher: MCGRAW-HILL HIGHER EDUCATION
expand_more
expand_more
format_list_bulleted
Question
Chapter 28, Problem 2CT
Summary Introduction
To determine:
The effects of castration of 9-year-old male on the levels of GnRH, FSH, LH, and testosterone and also the effect on sexual characteristics and sexual behavior as an adult.
Introduction:
In males, the process of removal of the testicle is referred to as castration. Before puberty, the levels of GnRH (gonadotropin-releasing hormone) are low in the body. The low levels of GnRH are also responsible for the low levels of FSH (follicle-stimulating hormone) and LH (luteinizing hormone).
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solutionStudents have asked these similar questions
TRUE OR FALSE. Prolonged estrogen stimulation promotes a release of the anterior pituitary hormone responsible for stimulation ovulation. This is an example of a negative feedback.
secondary sex
characteristics
The gonadotropin-releasing hormone has ultimate control over the male
reproductive system because it secretes hypothalamus.
androgen
cerebral cortex
seminiferous tubules
GNRH stimulates the follicle-stimulating to produce the two gonadotropic
hormones.
interstitial cells
testosterone
In males,
hormone promotes spermatogenesis in the
hormone controls the production
follicle-stimulating
and
of testosterone by
luteinizing
estrogen
The main sex hormone in men is called
and is
responsible for the maturation of sperm and the
as height, broad shoulders, muscle development, and a deep voice.
such
gonadotropin-releasing
hormone
hypothalamus
anterior pituitary
S, testes,
produced by each
16. The anterior pituitary is often referred to as the master
endocrine organ, but it, too, has a “master." What controls the
organ.
a
brelease of anterior pituitary hormones?
Chapter 28 Solutions
ANAT.+PHYSIO.2-LAB.MAN. >CUSTOM<
Ch. 28.1 - What are the functions of the reproductive system?Ch. 28.1 - What functions occur in both moles and females,...Ch. 28.2 - Describe the events of meiosis / and meiosis II....Ch. 28.2 - Prob. 4AYPCh. 28.2 - Prob. 5AYPCh. 28.3 - Prob. 6AYPCh. 28.3 - Describe the structure of the scrotum.Ch. 28.3 - Prob. 8AYPCh. 28.3 - Locate the boundaries of the perineum and the two...Ch. 28.3 - Prob. 10AYP
Ch. 28.3 - Whereare the seminiferous tubules and interstitial...Ch. 28.3 - Prob. 12AYPCh. 28.3 - Prob. 13AYPCh. 28.3 - Prob. 14AYPCh. 28.3 - Prob. 15AYPCh. 28.3 - Prob. 16AYPCh. 28.3 - Where, specifically, are sperm cells produced in...Ch. 28.3 - Prob. 18AYPCh. 28.3 - Prob. 19AYPCh. 28.3 - Prob. 20AYPCh. 28.3 - Prob. 21AYPCh. 28.3 - Prob. 22AYPCh. 28.3 - Prob. 23AYPCh. 28.3 - Prob. 24AYPCh. 28.3 - Prob. 25AYPCh. 28.3 - Prob. 26AYPCh. 28.3 - Prob. 27AYPCh. 28.3 - Describe the structures and locations of the glans...Ch. 28.3 - Prob. 29AYPCh. 28.3 - Prob. 30AYPCh. 28.3 - Prob. 31AYPCh. 28.3 - Prob. 32AYPCh. 28.4 - Where are GnRH, LH, FSH, and inhibin produced?...Ch. 28.4 - Prob. 34AYPCh. 28.4 - Explain the regulation of testosterone secretion.Ch. 28.4 - Prob. 36AYPCh. 28.4 - Prob. 37AYPCh. 28.4 - Prob. 38AYPCh. 28.4 - Describe the processes of erection, emission,...Ch. 28.5 - Prob. 40AYPCh. 28.5 - Prob. 41AYPCh. 28.5 - Prob. 42AYPCh. 28.5 - Prob. 43AYPCh. 28.5 - Prob. 44AYPCh. 28.5 - Prob. 45AYPCh. 28.5 - Describe the process of ovulation.Ch. 28.5 - What is the corpus luteum? What happens to it if...Ch. 28.5 - Prob. 48AYPCh. 28.5 - How are the uterine tubes involved in moving the...Ch. 28.5 - Prob. 50AYPCh. 28.5 - Describe the major ligaments holding the uterus in...Ch. 28.5 - Prob. 52AYPCh. 28.5 - Prob. 53AYPCh. 28.5 - Describe the layers of the vaginal wall. What are...Ch. 28.5 - Prob. 55AYPCh. 28.5 - Prob. 56AYPCh. 28.5 - Prob. 57AYPCh. 28.5 - What is the function of the clitoris and bulb of...Ch. 28.5 - Prob. 59AYPCh. 28.5 - Where are the greater and lesser vestibular glands...Ch. 28.5 - Prob. 61AYPCh. 28.5 - Prob. 62AYPCh. 28.5 - Prob. 63AYPCh. 28.5 - Prob. 64AYPCh. 28.6 - Prob. 65AYPCh. 28.6 - Prob. 66AYPCh. 28.6 - What are the major phases of the ovarian cycle?...Ch. 28.6 - Prob. 68AYPCh. 28.6 - Prob. 69AYPCh. 28.6 - Prob. 70AYPCh. 28.6 - Prob. 71AYPCh. 28.6 - Where is hCG produced, and what effect does it...Ch. 28.6 - Whatare the phases of the uterine cycle?Ch. 28.6 - Prob. 74AYPCh. 28.6 - Prob. 75AYPCh. 28.6 - Prob. 76AYPCh. 28.6 - Prob. 77AYPCh. 28.6 - Prob. 78AYPCh. 28.6 - Prob. 79AYPCh. 28.6 - Prob. 80AYPCh. 28.6 - Prob. 81AYPCh. 28.6 - Prob. 82AYPCh. 28.6 - What causes the changes that lead to menopause?Ch. 28.7 - Prob. 84AYPCh. 28.7 - Prob. 85AYPCh. 28.7 - Prob. 86AYPCh. 28.7 - Prob. 87AYPCh. 28 - During meiosis I Homologous chromosomes synapse....Ch. 28 - Prob. 2RACCh. 28 - Prob. 3RACCh. 28 - The site of spermatogenesis in the male is the a....Ch. 28 - Prob. 5RACCh. 28 - Prob. 6RACCh. 28 - Concerning the penis. the membranous urethra...Ch. 28 - Prob. 8RACCh. 28 - Prob. 9RACCh. 28 - Prob. 10RACCh. 28 - In the male, before puberty a. FSH levels are...Ch. 28 - Prob. 12RACCh. 28 - Prob. 13RACCh. 28 - Prob. 14RACCh. 28 - Prob. 15RACCh. 28 - Prob. 16RACCh. 28 - Prob. 17RACCh. 28 - During sexual excitement, which of these...Ch. 28 - Prob. 19RACCh. 28 - Prob. 20RACCh. 28 - Prob. 21RACCh. 28 - Which of these processes or phases in the monthly...Ch. 28 - Prob. 23RACCh. 28 - Prob. 24RACCh. 28 - Prob. 25RACCh. 28 - Prob. 26RACCh. 28 - Prob. 27RACCh. 28 - If an adult male were castrated (testes were...Ch. 28 - Prob. 2CTCh. 28 - Prob. 3CTCh. 28 - Prob. 4CTCh. 28 - If the ovaries are removed from a 20-year-old...Ch. 28 - Prob. 6CTCh. 28 - Prob. 7CTCh. 28 - GnRH can be used to treat some females who want to...Ch. 28 - Prob. 9CTCh. 28 - Prob. 10CTCh. 28 - Prob. 11CT
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Similar questions
- Drag and drop each item to the correct position in the diagram. GnRH Anterior pituitary gland Maintains secondary sex characteristics Inhibin Zoom Testis Testosterone Hypothalamus Reset Inhibition Inhibition Anterior pituitary gland LH () Leydig cells (-) Hypothalamus GnRH Testis Inhibition Inhibition - FSH Sertoli cells Spermatogenesis 4arrow_forwardMenopauseA. Indicates that there are no more follicles in the ovariesB. Is preceded by perimenopause which is characterized by irregular menstruationC. Is characterized by increased GnRH, FSH and LH due to absence of negative feedback from estrogenD. Is defined as the cessation of the monthly menstrual cycle by at least one yearE. All choices refer to menopause.arrow_forwardreproductive health, specifically geared to the ladies. I would like everyone to lay out what structures sperm travel through on their way to the oocyte and towards implantation. In the event that a woman would like to prevent implantation and pregnancy, how does oral contraception work (on the hormonal level)? Do women have other options on birth control besides oral contraception? What are they? Try to use as much detail as possible in your answer.arrow_forward
- Reproductive Hormones Reproductive Structures 1. FSH 6. Follicle 2. LH 7. Corpus luteum 3. Estrogen 8. Hypothalamus 4. Progesterone 9. Anterior pituitary 5. GNRH Gonadotropic hormones are released by the anterior pituitary to regulate the functions of the gonads (testis in males and ovaries in females). Use the list and select: a gonadotropic hormone the structure it stimulates in the ovaries the main hormone that is released as a result Record your answer as a three-digit number in the following order: Gonadotropic The structure The main hormone it acts on hormone releasedarrow_forwardIf a 9-year-old male were castrated, what would happen to the levelsof GnRH, FSH, LH, and testosterone in his blood? What effect wouldthese hormonal changes have on his sexual characteristics and sexualbehavior as an adult?arrow_forwardPlease don’t cancel the question. Can I get some help. Thank youarrow_forward
- True or false. A drop-in amount of estrogen leads to the production of milk.arrow_forwardwhats the inhibitory effect on the following for males: the The Follicle Stimulating Hormone, (FSH) The Luteinising Hormone (LH) and Testosterone (for males) For females, what is the inhibitory effect during the menstrual cycle for each of the following hormones: • Follicle Stimulating Hormone (FSH)• Luteinising Hormone (LH) • Oestrogen• Progesteronearrow_forwardModeling the Menstrual Cycle: The menstrual cycle takes an average of 28 days to complete and repeat. There are 4 phases: Day 1-5 Menstruation (period) Day 6-14 proliferation Day 11-13 Ovulation Day 15-28 Secretory phase Task: Create and annotate a model to show what is happening in the female body during the 4 phases of the menstrual cycle. This can be done digitally or on paper. If you chose to do this on paper, just make sure it gets to Ms. B. Things to include: Arrange the phases into a cycle Include changes in hormone levels in each phase (PSH, LH, Estrogen, Progesterone) Changes in the uterine lining What is happening to the egg (follicular, ovulation, luteal phase) It might help to start with arranging the phases into a cycle and then fill in details about what is happening at each phase. Use the slideshow on this website as a resource, it's very informative Menstruation Secretory Phase Proliferative Phase Ovulationarrow_forward
- During pregnancy. FSH and LH leveis should be: CHigh progesterone stl mulates the rclease of FSH and LH OHeh-Allhormones are high during 2regnancy effect on LH and FSH OLow-thc pitultary stopsfunct.onine during prognancyarrow_forwardTrue or false FSH promotes sperm production in males LH promotes production of testosterone in the hypothalamusarrow_forwardSelect all that help prepare the uterus for labor Unpregulation of oxytocin receptors Increasing calming effect from elevated estrogen level Atrophy of the myometrium Initiation of menstruationarrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
- Nutrition Through The Life CycleHealth & NutritionISBN:9781337919333Author:Brown, Judith E.Publisher:Cengage Learning,Human Physiology: From Cells to Systems (MindTap ...BiologyISBN:9781285866932Author:Lauralee SherwoodPublisher:Cengage Learning
Nutrition Through The Life Cycle
Health & Nutrition
ISBN:9781337919333
Author:Brown, Judith E.
Publisher:Cengage Learning,
Human Physiology: From Cells to Systems (MindTap ...
Biology
ISBN:9781285866932
Author:Lauralee Sherwood
Publisher:Cengage Learning
Great Glands - Your Endocrine System: CrashCourse Biology #33; Author: CrashCourse;https://www.youtube.com/watch?v=WVrlHH14q3o;License: Standard Youtube License