CRH secretion would not raise the blood concentration of
- a. ACTH.
- b. thyroxine.
- c. cortisol.
- d. corticosterone.
- e. glucose.

Introduction:
The hypothalamus synthesizes the releasing hormones and inhibitory hormones which control secretion or inhibition of hormones by the anterior pituitary. The hypothalamus secretes six hormones namely thyrotropin-releasing hormone (TRH), gonadotropin-releasing hormone (GnRH), prolactin-inhibiting hormone (PIH), corticotropin-releasing hormone (CRH), growth hormone–releasing hormone (GHRH), and somatostatin. These hormones regulate the synthesis of pituitary hormones (FSH, LH, TSH, ACTH, prolactin, and GH). The pituitary hormones control other endocrine glands.
Answer to Problem 1TYR
Correct answer:
Corticotropin-releasing hormone (CRH) secreted by the hypothalamus would not raise the thyroxine concentration in the blood. Thyrotropin-releasing hormone (TRH) from the hypothalamus promotes the release of thyroxine from the thyroid gland. Therefore, option b is correct.
Explanation of Solution
Justify reasons for the correct statement:
The thyroid follicular cells secrete thyroid hormones (TH) such as triiodothyronine (T3) and thyroxine (T4). The thyroid gland releases TH into the bloodstream. The secretion of thyroxine is not influenced by the CRH.
Option (b) is given as “thyroxine”.
CRH does not raise the thyroxine concentration in the blood.
Hence, option (b) is correct.
Justify reasons for the incorrect statements:
Option (a) is given as “ACTH”.
The hypothalamus releases the CRH, which stimulates the anterior pituitary to secrete adrenocorticotropic hormone (ACTH). Hence, it is a wrong answer.
Option (c) is given as “cortisol”.
CRH stimulates ACTH secretion by the anterior pituitary. ACTH promotes the adrenal cortex to release of cortisol (glucocorticoids). Hence, it is a wrong answer.
Option (d) is given as “corticosterone”.
CRH stimulates ACTH secretion by the anterior pituitary. ACTH promotes the adrenal cortex to release the corticosterone (glucocorticoids). Hence, it is a wrong answer.
Option (e) is given as “glucose”.
The hypothalamus secretes the CRH that stimulates the release of ACTH by the anterior pituitary. ACTH stimulates the adrenal cortex to secrete cortisol and corticosterone (glucocorticoids). Cortisol and corticosterone stimulate the catabolism of fat and protein and promote gluconeogenesis. Thereby, they increase glucose concentration into the blood. Hence, it is a wrong answer.
Hence, options (a), (c), (d), and (e) are incorrect.
CRH raises the concentration of ACTH, cortisol, corticosterone, and glucose in the blood, but not thyroxine.
Want to see more full solutions like this?
Chapter 17 Solutions
A&P UNITY AND FUNCTION ACCESS
Additional Science Textbook Solutions
General, Organic, and Biological Chemistry - 4th edition
Microbiology Fundamentals: A Clinical Approach
Human Physiology: An Integrated Approach (8th Edition)
Physical Science
Laboratory Manual For Human Anatomy & Physiology
- calculate the questions showing the solution including variables,unit and equations all the questiosn below using the data a) B1, b) B2, c) hybrid rate constant (1) d) hybrid rate constant (2) e) t1/2,dist f) t1/2,elim g) k10 h) k12 i) k21 j) initial concentration (C0) k) central compartment volume (V1) l) steady-state volume (Vss) m) clearance (CL) AUC (0→10 min) using trapezoidal rule n) AUC (20→30 min) using trapezoidal rule o) AUCtail (AUC360→∞) p) total AUC (using short cut method) q) volume from AUC (VAUC)arrow_forwardQUESTION 8 For the following pedigree, assume that the mode of inheritance is X-linked recessive, and that the trait has full penetrance and expressivity and occurs at a very low frequency in the hum population. Using XA for the dominant allele and Xa for the recessive allele, assign genotypes for the following individuals (if it is not possible to figure out the second allele of a genotype, that with an underscore): 2 m 1 2 1 2 4 5 6 7 8 9 IV 1 2 3 5 6 7 8 CO 9 10 12 13 V 1, 2 3 4 5 6 7 8 9 10 11 12 13 a. Il-1: b. 11-2: c. III-3: d. III-4: e. If individuals IV-11 and IV-12 have another child, what is the probability that they will have a boy with the disorder?arrow_forwardAnswerrarrow_forward
- please,show workings ahd solutions calculate the questions showing the solution including variables,unit and equations all the questiosn below using the data a) B1, b) B2, c) hybrid rate constant (1) d) hybrid rate constant (2) e) t1/2,dist f) t1/2,elim g) k10 h) k12 i) k21 j) initial concentration (C0) k) central compartment volume (V1) l) steady-state volume (Vss) m) clearance (CL) AUC (0→10 min) using trapezoidal rule n) AUC (20→30 min) using trapezoidal rule o) AUCtail (AUC360→∞) p) total AUC (using short cut method) q) volume from AUC (VAUC)arrow_forwardQuestion about consensus and the relationship to transcriptional activityarrow_forwardQuestion about archaea and eukaryotic general transcription homologsarrow_forward
- Question about general transcription factors and their relationship to polymerasesarrow_forwardIdentify the indicated structure?arrow_forwardrewrite: Problem 1 (Mental Health): The survivor victim is dealing with acute stress and symptoms of a post-traumatic stress disorder (PTSD) due to their traumatic experience during the January 2025 wildfire. Goal 1: To alleviate the client's overall level, frequency, and intensity of anxiety and PTSD symptoms so that daily functioning remains unimpaired. Objective 1: The client will learn and regularly use at least two anxieties management techniques to reduce anxiety symptoms to less than three episodes per week. Intervention 1: The therapist will provide psychoeducation about anxiety and PTSD, including their symptoms and triggers. The therapist will also teach and assist the client in adopting relaxation techniques, such as deep breathing exercises and progressive muscle relaxation, to better manage anxiety and lessen PTSD symptoms.arrow_forward
- O Macmillan Learning You have 0.100 M solutions of acetic acid (pKa = 4.76) and sodium acetate. If you wanted to prepare 1.00 L of 0.100 M acetate buffer of pH 4.00, how many milliliters of acetic acid and sodium acetate would you add? acetic acid: mL sodium acetate: mLarrow_forwardHow does the cost of food affect the nutritional choices people make?arrow_forwardBiopharmaceutics and Pharmacokinetics:Two-Compartment Model Zero-Order Absorption Questions SHOW ALL WORK, including equation used, variables used and each step to your solution, report your regression lines and axes names (with units if appropriate) :Calculate a-q a) B1, b) B2, c) hybrid rate constant (1) d) hybrid rate constant (2) e) t1/2,dist f) t1/2,elim g) k10 h) k12 i) k21 j) initial concentration (C0) k) central compartment volume (V1) l) steady-state volume (Vss) m) clearance (CL) AUC (0→10 min) using trapezoidal rule n) AUC (20→30 min) using trapezoidal rule o) AUCtail (AUC360→∞) p) total AUC (using short cut method) q) volume from AUC (VAUC)arrow_forward
- Medical Terminology for Health Professions, Spira...Health & NutritionISBN:9781305634350Author:Ann Ehrlich, Carol L. Schroeder, Laura Ehrlich, Katrina A. SchroederPublisher:Cengage LearningEssentials of Pharmacology for Health ProfessionsNursingISBN:9781305441620Author:WOODROWPublisher:CengageConcepts of BiologyBiologyISBN:9781938168116Author:Samantha Fowler, Rebecca Roush, James WisePublisher:OpenStax College
- Human Physiology: From Cells to Systems (MindTap ...BiologyISBN:9781285866932Author:Lauralee SherwoodPublisher:Cengage Learning



