18 Questions
What is the role of FSH in women?
Stimulates the formation of graafian follicles
What is the function of somatostatin in hormone regulation?
Inhibits pituitary hormone release
What is the role of the portal venous plexus in hormone regulation?
Carries hypothalamic factors to the anterior pituitary
Which transcription factor is involved in the differentiation of lactotrophs?
PIT-1
What is the effect of dopamine on pituitary hormone release?
Inhibits pituitary hormone release
Which hormone regulates spermatogenesis and testosterone production in males?
LH
What is the primary function of the binding proteins in the circulation of T3 and T4?
To maintain the serum unbound (“free”) T3 and T4 concentrations within narrow limits
What is the primary effect of T3 binding to thyroid hormone nuclear receptors in target cells?
Increase in transcription of target genes
What is the result of the stimulation of carbohydrate and lipid catabolism and protein synthesis by thyroid hormone?
Increase in the basal metabolic rate
What is the effect of goitrogens on the thyroid gland?
Hyperplastic enlargement of the gland
What is the relative affinity of T3 compared to T4 for binding to thyroid hormone nuclear receptors?
T3 has a tenfold greater affinity than T4
What is the critical role of thyroid hormone in development?
Fetal and neonatal brain development
What process helps maintain physiologic levels of hormones?
Feedback inhibition
What can disturb the normal activity of the endocrine system?
All of the above
What is the primary function of the pituitary gland?
Regulating the function of other endocrine glands
What is the term for diseases associated with the development of mass lesions?
Mass lesions
What is the role of the hypothalamus in regulating the pituitary gland?
Controlling its function
What is necessary for the study of endocrine diseases?
Integration of morphologic findings with biochemical measurements
Learn about the role of pituitary hormones, such as FSH and LH, in regulating reproductive processes in both women and men. Understand how these hormones interact with the hypothalamus and ovaries/testes to control follicle formation, ovulation, and sperm production. Test your knowledge of the complex relationships between these hormones and organs!
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