Hypothalamus & Pituitary Gland Flashcards
The pituitary gland is composed of an epithelial component, ______, and a neural component, ______
Adenohypophysis, neurohypophysis
The posterior pituitary (neurohypophysis) is a collection of nerve axons whose cell bodies are located in the _____
Hypothalamus
The two areas in the hypothalamus that house cell bodies whose axons project to the posterior pituitary are called:
- Paraventricular nucleus
2. Supraoptic nucleus
Two hormones released by the posterior pituitary are:
- Antidiuretic hormone (ADH)
2. Oxytocin
The primary blood supply to the neurohypophysis is:
Inferior hypophyseal artery
Growth hormone, prolactin, follicle-stimulating hormone, luteinizing hormone, adrenocorticotropic hormone, and thyroid-stimulating hormone are all released from where?
Anterior pituitary (adenohypophysis)
The cell type of growth hormone is
Somatotrophs
The cell type of FSH and LH is
Gonadotrophs
Together, Growth Hormone and ____ promote growth and influence regulation of metabolism
Insulin-like Growth Factor-1 (IGF-1)
Somatomedin definition
A hormone that acts as an intermediate in the stimulation of tissue growth by GH (Ex: IGF-1)
Somatostatin ____ (stimulates/inhibits) GH production
Inhibits
____ is a peptide produced mainly in the stomach, but also synthesized in the hypothalamus, that increases GH release and food intake
Ghrelin