18 Questions
What is the function of tropic hormones?
Target endocrine glands
Which part of Rathke's pouch forms the Anterior Lobe of the pituitary gland?
Pars distalis
What is the function of dopamine on Prolactin?
Inhibits its release
Which hormone is released by the pituitary gland to stimulate thyroid function?
Thyroid-stimulating hormone
How are pituitary hormones regulated?
By the hypothalamus
Where is the pars intermedia located in relation to Rathke's pouch?
In the middle of Rathke's pouch
What is the function of the paraventricular and supraoptic nuclei in the pituitary gland?
Release oxytocin and vasopressin
What type of receptors do water-soluble hormones attach to?
G-protein-coupled receptors
How are hormones from the hypothalamus transported to the posterior pituitary?
Along the nerve cell's axons
Which hormone is released by the intermediate lobe of the pituitary gland?
Melanocyte-stimulating hormone (MSH)
What is the main mechanism by which G-protein-coupled receptors transmit signals into the cell?
Conformational change in the receptor
How do high levels of adrenocorticotropic hormone (ACTH) impact melanocyte-stimulating hormone (MSH) levels in Cushing's syndrome?
Increase MSH levels
Which part of the brain links the nervous system to the endocrine system?
Hypothalamus
What is the main function of luteinizing hormone and follicle stimulating hormone releasing factor from the tuberal nuclei?
Stimulate pars distalis secretion
Which of the following best describes the relationship between the hypothalamus and pituitary gland?
Most hormones generated in the hypothalamus are distributed to the pituitary gland.
Where does most of the pituitary gland's regulation come from?
Directly from the hypothalamus
What is the mechanism of hormone release from the hypothalamic neurons to the posterior pituitary gland?
Neuroendocrine signaling
What is the composition of the posterior pituitary (neurohypophysis)?
Both glandular and neural tissue
Learn about the mechanism of action of water-soluble peptide hormones, including how they interact with specific receptors on the cell surface and trigger signal transduction pathways. Explore the role of G-protein-coupled receptors (GPCRs) in transmitting hormonal signals within the cell.
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