Podcast
Questions and Answers
Which function is primarily associated with the hypothalamus?
Which function is primarily associated with the hypothalamus?
- Regulation of blood calcium levels
- Filtering sensory information for conscious perception
- Direct control of muscle movement
- Regulation of body temperature (correct)
The hypothalamus influences the pituitary gland's function by:
The hypothalamus influences the pituitary gland's function by:
- Directly stimulating hormone release from target tissues
- Transmitting electrical signals through spinal nerves
- Filtering toxins from the bloodstream
- Secreting releasing and inhibiting hormones into the portal system (correct)
What anatomical structure houses the pituitary gland?
What anatomical structure houses the pituitary gland?
- Sphenoid sinus
- Sella turcica (correct)
- Foramen magnum
- Cribriform plate
How do the anterior and posterior pituitary glands differ in terms of hypothalamic control?
How do the anterior and posterior pituitary glands differ in terms of hypothalamic control?
Which of the following best describes the hypophyseal portal system's function?
Which of the following best describes the hypophyseal portal system's function?
Which hormones are synthesized in the hypothalamus and stored in the posterior pituitary?
Which hormones are synthesized in the hypothalamus and stored in the posterior pituitary?
What is the primary mechanism by which ADH and oxytocin are transported from the hypothalamus to the posterior pituitary?
What is the primary mechanism by which ADH and oxytocin are transported from the hypothalamus to the posterior pituitary?
The release of hormones from the anterior pituitary is primarily controlled by:
The release of hormones from the anterior pituitary is primarily controlled by:
What is the role of parvicellular neurosecretory cells in the context of the anterior pituitary function?
What is the role of parvicellular neurosecretory cells in the context of the anterior pituitary function?
Which of the following hormones is NOT directly produced by the anterior pituitary?
Which of the following hormones is NOT directly produced by the anterior pituitary?
Thyrotropin-releasing hormone (TRH) primarily stimulates the secretion of which hormone from the anterior pituitary?
Thyrotropin-releasing hormone (TRH) primarily stimulates the secretion of which hormone from the anterior pituitary?
What is the primary effect of Growth hormone-inhibiting hormone (somatostatin) on the anterior pituitary?
What is the primary effect of Growth hormone-inhibiting hormone (somatostatin) on the anterior pituitary?
Which anterior pituitary cell type is responsible for producing adrenocorticotropic hormone (ACTH)?
Which anterior pituitary cell type is responsible for producing adrenocorticotropic hormone (ACTH)?
Which of the following statements best describes the action of anterior pituitary hormones?
Which of the following statements best describes the action of anterior pituitary hormones?
What role does the Prolactin-inhibiting hormone (PIH), mainly dopamine, play in prolactin regulation?
What role does the Prolactin-inhibiting hormone (PIH), mainly dopamine, play in prolactin regulation?
Which of the following is an effect of prolactin in females?
Which of the following is an effect of prolactin in females?
During pregnancy, why does lactation not typically occur despite elevated prolactin levels?
During pregnancy, why does lactation not typically occur despite elevated prolactin levels?
Which of the following is known to stimulate prolactin secretion?
Which of the following is known to stimulate prolactin secretion?
What is the effect of prolactin on GnRH secretion?
What is the effect of prolactin on GnRH secretion?
Besides prolactin, which hormone(s) are known to have galactopoietic effects (maintain established milk production)?
Besides prolactin, which hormone(s) are known to have galactopoietic effects (maintain established milk production)?
Damage to the hypophyseal portal system would most directly affect the function of the:
Damage to the hypophyseal portal system would most directly affect the function of the:
Which hypothalamic nucleus is most directly involved in the production of hormones stored and released by the posterior pituitary?
Which hypothalamic nucleus is most directly involved in the production of hormones stored and released by the posterior pituitary?
Which of the following anterior pituitary hormones directly stimulates the adrenal cortex?
Which of the following anterior pituitary hormones directly stimulates the adrenal cortex?
Which factors can act as Prolactin-Releasing Factors (PRFs)?
Which factors can act as Prolactin-Releasing Factors (PRFs)?
How does estradiol modulate prolactin release?
How does estradiol modulate prolactin release?
During the suckling reflex, what is the role of spinal cord neurons in regulating prolactin release?
During the suckling reflex, what is the role of spinal cord neurons in regulating prolactin release?
Which of the following is a consequence of prolactin's inhibition of GnRH release?
Which of the following is a consequence of prolactin's inhibition of GnRH release?
Considering the interplay between the hypothalamus and pituitary, which of the following scenarios would most likely result in decreased TSH secretion?
Considering the interplay between the hypothalamus and pituitary, which of the following scenarios would most likely result in decreased TSH secretion?
Which hormone is NOT involved in Mammogenesis?
Which hormone is NOT involved in Mammogenesis?
Flashcards
What is the hypothalamus?
What is the hypothalamus?
The control center for homeostasis in the body.
What is the pituitary gland?
What is the pituitary gland?
The master gland, weighing 500-900 mg, regulated by the hypothalamus and located in the sella turcica.
What is the adenohypophysis?
What is the adenohypophysis?
The anterior lobe of the pituitary gland.
What is the neurohypophysis?
What is the neurohypophysis?
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What is the pituitary stalk?
What is the pituitary stalk?
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What controls the posterior pituitary?
What controls the posterior pituitary?
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What hormones come from the posterior pituitary?
What hormones come from the posterior pituitary?
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What is the hypothalamo-hypophysial portal system?
What is the hypothalamo-hypophysial portal system?
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What are hypophysiotropic hormones?
What are hypophysiotropic hormones?
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What is prolactin?
What is prolactin?
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What controls prolactin secretion?
What controls prolactin secretion?
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What is lactogenesis?
What is lactogenesis?
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