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Module 7 - Hypothalamus Verified and
Updated Questions and Answers (100%
Correct Answers)
The hypothalamus is located
Answer: below the thalamus
One of the primary roles of the hypothalamus is to control the release of
Answer: hormones from the pituitary gland (also known as the hypophysis)
Even though the hypothalamus and thalamus are next to each other,
Answer: their functions are independent
The pituitary gland consists of two parts
Answer: an anterior lobe and a posterior lobe:
The anterior lobe contains secretory cells that
Answer: release hormones into the circulation under the influence of hypothalamic
hormones
The hypothalamus releases hormones to the anterior lobe by way of
Answer: a special capillary bed referred to as the hypothalamic-hypophyseal portal
system
The posterior pituitary does not contain secretory cells, per se; rather, it consists of
Answer: the terminal axons of neurosecretory cells that are located in the
hypothalamus, which release two hormones (antidiuretic hormone and oxytocin) into
the circulation from the posterior pituitary lobe.
Unlike neurotransmitters, which are released by axons and bind to receptor at a
nearby target organ (usually a neuron), hormones
Answer: are released by glands like the pituitary (among others) into circulation that
binds a distant receptor on something like a tissue
Preoptic region of hypothalamus - location
Answer: anterior to the level
of the optic chiasm
The supraoptic region of hypothalamus - location
Answer: at the level of the optic chiasm.
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The tuberal region of hypothalamus - location
Answer: at the level of the tuber cinereum (also known as the median eminence - the
bulge from which the infundibulum extends to the pituitary).
The mammillary (or posterior) region of hypothalamus - location
Answer: at the level of the mammillary bodies.
The preoptic region (or area) constitutes the gray matter around the most rostral part
of the hypothalamus. Two nuclear areas have been described in detail:
Answer: the medial and lateral preoptic areas
The medial preoptic area plays a role in the release of the
Answer: gonadotropic hormones FSH and LH from the anterior pituitary via
gonadotropin-releasing hormone (GnRH).
In females, pituitary gonadotropic hormones are released
Answer: in a cyclical manner; this forms the menstrual cycle.
In males, there is a more continual release of.
Answer: gonadotropins
The medial preoptic area is larger in
Answer: males than in females; as such, the medial preoptic area has been termed
the sexually dimorphic nucleus (SDN).
Development of the SDN is determined by the presence or absence of
Answer: testosterone in the prenatal circulation.
The lateral preoptic area contains the __________, which project to and inhibit
________________.
Answer: The lateral preoptic area contains the sleep-promoting nuclei of the
hypothalamus, which project to and inhibit wake-promoting nuclei in the posterior
hypothalamus and brainstem.
The supraoptic region lies above the optic chiasm and consists of four named nuclei:
Answer: the supraoptic, paraventricular, anterior and suprachiasmatic nuclei.
Supraoptic nucleus - produces
Answer: antidiuretic hormone (ADH; vasopressin); when released into the systemic
circulation from the posterior lobe of the pituitary gland
Module 7 - Hypothalamus Verified and
Updated Questions and Answers (100%
Correct Answers)
The hypothalamus is located
Answer: below the thalamus
One of the primary roles of the hypothalamus is to control the release of
Answer: hormones from the pituitary gland (also known as the hypophysis)
Even though the hypothalamus and thalamus are next to each other,
Answer: their functions are independent
The pituitary gland consists of two parts
Answer: an anterior lobe and a posterior lobe:
The anterior lobe contains secretory cells that
Answer: release hormones into the circulation under the influence of hypothalamic
hormones
The hypothalamus releases hormones to the anterior lobe by way of
Answer: a special capillary bed referred to as the hypothalamic-hypophyseal portal
system
The posterior pituitary does not contain secretory cells, per se; rather, it consists of
Answer: the terminal axons of neurosecretory cells that are located in the
hypothalamus, which release two hormones (antidiuretic hormone and oxytocin) into
the circulation from the posterior pituitary lobe.
Unlike neurotransmitters, which are released by axons and bind to receptor at a
nearby target organ (usually a neuron), hormones
Answer: are released by glands like the pituitary (among others) into circulation that
binds a distant receptor on something like a tissue
Preoptic region of hypothalamus - location
Answer: anterior to the level
of the optic chiasm
The supraoptic region of hypothalamus - location
Answer: at the level of the optic chiasm.
, Inquire through: | Professional | Confidential Support
The tuberal region of hypothalamus - location
Answer: at the level of the tuber cinereum (also known as the median eminence - the
bulge from which the infundibulum extends to the pituitary).
The mammillary (or posterior) region of hypothalamus - location
Answer: at the level of the mammillary bodies.
The preoptic region (or area) constitutes the gray matter around the most rostral part
of the hypothalamus. Two nuclear areas have been described in detail:
Answer: the medial and lateral preoptic areas
The medial preoptic area plays a role in the release of the
Answer: gonadotropic hormones FSH and LH from the anterior pituitary via
gonadotropin-releasing hormone (GnRH).
In females, pituitary gonadotropic hormones are released
Answer: in a cyclical manner; this forms the menstrual cycle.
In males, there is a more continual release of.
Answer: gonadotropins
The medial preoptic area is larger in
Answer: males than in females; as such, the medial preoptic area has been termed
the sexually dimorphic nucleus (SDN).
Development of the SDN is determined by the presence or absence of
Answer: testosterone in the prenatal circulation.
The lateral preoptic area contains the __________, which project to and inhibit
________________.
Answer: The lateral preoptic area contains the sleep-promoting nuclei of the
hypothalamus, which project to and inhibit wake-promoting nuclei in the posterior
hypothalamus and brainstem.
The supraoptic region lies above the optic chiasm and consists of four named nuclei:
Answer: the supraoptic, paraventricular, anterior and suprachiasmatic nuclei.
Supraoptic nucleus - produces
Answer: antidiuretic hormone (ADH; vasopressin); when released into the systemic
circulation from the posterior lobe of the pituitary gland
