
Introduction:
The gonadotropins are the hormones secreted by the anterior pituitary. The hormones act on the gonads to increase the production of the sex hormones and also stimulates the production of ova in females and sperm in males.

Answer to Problem 1E
Correct answer :
The correct answer is option (c) GnRH.
Explanation of Solution
Explanation/justification for the correct answer:
Option (c) GnRH. The initiation of puberty is regulated by gonadotropin-releasing hormone (GnRH), which is secreted by the hypothalamus. GnRH further stimulates the secretion of gonadotropins from the anterior pituitary. The gonadotropin hormones regulate the function of the gonads. So, the correct answer is option (c).
Explanation for incorrect answer:
Option (a) Inhibin. Inhibin hormone is produced and secreted by the gonads (in males, by Sertoli cells and in females, by the granulosa cells of the ovarian follicles) and inhibits the synthesis of follicle-stimulating hormone (FSH) by the pituitary gland. So, this is an incorrect option.
Option (b) Androgens. Androgen is of two types, namely testosterone and androstenedione. Androgen is responsible for the development and stability of secondary sex-specific characters, the formation of sex-ducts, and sex-glands in males. So, this is an incorrect answer.
Option (d) FSH. The follicle-stimulating hormone (FSH) is a gonadotropin hormone that stimulates the development of ovarian follicles in the female and seminiferous tubules and production of sperms in the male. So, this is an incorrect answer.
Option (e) GHRH. Growth hormone-releasing hormone (GHRH) is secreted by the hypothalamus that stimulates the pituitary gland to produce and secrete growth hormone (GH). So, this is an incorrect answer.
In both males and females, gonadotropin secretion by the anterior pituitary is stimulated by the GnRH. Hence, the correct answer is option (c) GnRH.
Want to see more full solutions like this?
Chapter 22 Solutions
Principles of Human Physiology (6th Edition)
- Describe the principle of homeostasis.arrow_forwardExplain how the hormones of the glands listed below travel around the body to target organs and tissues : Pituitary gland Hypothalamus Thyroid Parathyroid Adrenal Pineal Pancreas(islets of langerhans) Gonads (testes and ovaries) Placentaarrow_forwardWhat are the functions of the hormones produced in the glands listed below: Pituitary gland Hypothalamus Thyroid Parathyroid Adrenal Pineal Pancreas(islets of langerhans) Gonads (testes and ovaries) Placentaarrow_forward
- Describe the hormones produced in the glands listed below: Pituitary gland Hypothalamus Thyroid Parathyroid Adrenal Pineal Pancreas(islets of langerhans) Gonads (testes and ovaries) Placentaarrow_forwardPlease help me calculate drug dosage from the following information: Patient weight: 35 pounds, so 15.9 kilograms (got this by dividing 35 pounds by 2.2 kilograms) Drug dose: 0.05mg/kg Drug concentration: 2mg/mLarrow_forwardA 25-year-old woman presents to the emergency department with a 2-day history of fever, chills, severe headache, and confusion. She recently returned from a trip to sub-Saharan Africa, where she did not take malaria prophylaxis. On examination, she is febrile (39.8°C/103.6°F) and hypotensive. Laboratory studies reveal hemoglobin of 8.0 g/dL, platelet count of 50,000/μL, and evidence of hemoglobinuria. A peripheral blood smear shows ring forms and banana-shaped gametocytes. Which of the following Plasmodium species is most likely responsible for her severe symptoms? A. Plasmodium vivax B. Plasmodium ovale C. Plasmodium malariae D. Plasmodium falciparumarrow_forward
- please fill in missing parts , thank youarrow_forwardplease draw in the answers, thank youarrow_forwarda. On this first grid, assume that the DNA and RNA templates are read left to right. DNA DNA mRNA codon tRNA anticodon polypeptide _strand strand C с A T G A U G C A TRP b. Now do this AGAIN assuming that the DNA and RNA templates are read right to left. DNA DNA strand strand C mRNA codon tRNA anticodon polypeptide 0 A T G A U G с A TRParrow_forward
- Human Anatomy & Physiology (11th Edition)BiologyISBN:9780134580999Author:Elaine N. Marieb, Katja N. HoehnPublisher:PEARSONBiology 2eBiologyISBN:9781947172517Author:Matthew Douglas, Jung Choi, Mary Ann ClarkPublisher:OpenStaxAnatomy & PhysiologyBiologyISBN:9781259398629Author:McKinley, Michael P., O'loughlin, Valerie Dean, Bidle, Theresa StouterPublisher:Mcgraw Hill Education,
- Molecular Biology of the Cell (Sixth Edition)BiologyISBN:9780815344322Author:Bruce Alberts, Alexander D. Johnson, Julian Lewis, David Morgan, Martin Raff, Keith Roberts, Peter WalterPublisher:W. W. Norton & CompanyLaboratory Manual For Human Anatomy & PhysiologyBiologyISBN:9781260159363Author:Martin, Terry R., Prentice-craver, CynthiaPublisher:McGraw-Hill Publishing Co.Inquiry Into Life (16th Edition)BiologyISBN:9781260231700Author:Sylvia S. Mader, Michael WindelspechtPublisher:McGraw Hill Education





