16 Questions
Which part of the brain integrates functions that maintain chemical and temperature homeostasis?
Hypothalamus
Where are the releasing hormones synthesized in the brain?
Hypothalamus
How many releasing hormones are made in the hypothalamus?
Seven
What is the other name for the anterior pituitary gland?
Adenohypophysis
In what fashion does the anterior pituitary secrete tropic hormones?
Pulsatile
Which hormone is responsible for regulating body growth and is important in metabolism?
Growth Hormone (GH, Somatotropin)
How are the hypothalamic releasing hormones delivered to the anterior pituitary?
Via the hypothalamichypophyseal portal system
What does Thyroid-stimulating Hormone (TSH) stimulate?
Secretion of thyroid hormone & growth of thyroid gland
What is the primary function of Adrenocorticotropic Hormone (ACTH)?
Stimulates cortisol secretion by the adrenal cortex
Which hormone is responsible for stimulating growth & development of ovarian follicles and promoting estrogen secretion in females?
Follicle-stimulating Hormone (FSH)
In males, which hormone is required for sperm production?
Follicle-stimulating Hormone (FSH)
What does Prolactin stimulate in females?
Breast development
Which hormone inhibits the release of prolactin?
{Prolactin-inhibiting hormone (PIH)
What effect does Growth Hormone have on plasma free fatty acids (FFA)?
Increases plasma free fatty acids as a source of energy for muscle tissue
What is the major source of Insulin-like Growth Factor I (IGF-I)?
Liver
Where are the posterior pituitary hormones synthesized?
Cell bodies of neurons in the hypothalamus
Study Notes
Brain Function and Homeostasis
- The hypothalamus integrates functions that maintain chemical and temperature homeostasis.
Hypothalamus and Anterior Pituitary
- Releasing hormones are synthesized in the hypothalamus.
- The hypothalamus produces 9 releasing hormones.
- The anterior pituitary gland is also known as the adenohypophysis.
- The anterior pituitary secretes tropic hormones in a pulsatile manner.
Hormone Functions
- Growth hormone (GH) regulates body growth and is important in metabolism.
- Thyroid-stimulating Hormone (TSH) stimulates the thyroid gland.
- Adrenocorticotropic Hormone (ACTH) stimulates the adrenal cortex to secrete glucocorticoids.
- Follicle-stimulating Hormone (FSH) stimulates growth and development of ovarian follicles and promotes estrogen secretion in females.
- In males, FSH is required for sperm production.
- Prolactin stimulates milk production in females.
- Dopamine inhibits the release of prolactin.
- Growth Hormone increases plasma free fatty acids (FFA).
Insulin-like Growth Factor I
- The major source of Insulin-like Growth Factor I (IGF-I) is the liver.
Posterior Pituitary
- Posterior pituitary hormones are synthesized in the hypothalamus.
Test your knowledge of the autonomic control centers and hormone release functions of the hypothalamus and pituitary. This quiz covers the synthesis and release of hormones, as well as their role in maintaining chemical and temperature homeostasis.
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