What is the target organ of thyroid hormones' metabolic effects?A) anterior pituitary B) hypothalamus C) cells of the body D) thyroid
The hypothalamic– pituitary – thyroid axis (HPT axis for short a.k.a. thyroid homeostasis or thyrotropic feedback control) is part of the neuroendocrine system responsible for the regulation of metabolism and also responds to stress.. As its name suggests it depends upon the hypothalamus the pituitary gland and the thyroid gland.. The hypothalamus senses low circulating levels of thyroid ...
Sat May 26 2001 14:30:00 GMT-0400 (Eastern Daylight Time) · Thyroid hormones (T 4 and T 3) are produced by the follicular cells of the thyroid gland and are regulated by TSH made by the thyrotropes of the anterior pituitary gland. The effects of T 4 in vivo are mediated via T 3 (T 4 is converted to T 3 in target tissues). T 3 is three to five times as active than T 4.. Thyroxine (3 5 3′ 5′-tetraiodothyronine) is produced by follicular cells …
Tropic hormone - Wikipedia
Tropic hormone - Wikipedia
Anterior pituitary - Wikipedia
Hypothalamic–pituitary–thyroid axis - Wikipedia
The thyroid or thyroid gland is an endocrine gland in the neck consisting of two connected lobes. The lower two thirds of the lobes are connected by a thin band of tissue called the thyroid isthmus. The thyroid is located at the front of the neck below the Adam's apple. Microscopically the functional unit of the thyroid gland is the spherical thyroid follicle lined with follicular cells (thyrocytes) and occasional parafollicular cells that surround a lumen containing colloid. The thyroid gland secretes three hormones: the two thyroid hor…
A major organ of the endocrine system the anterior pituitary (also called the adenohypophysis or pars anterior ) is the glandular anterior lobe that together with the posterior lobe (posterior pituitary or the neurohypophysis) makes up the pituitary gland (hypophysis). The anterior pituitary regulates several physiological processes including stress growth reproduction and lactation.
Thyrotropin-releasing hormone (TRH) is a hypophysiotropic hormone p...
No comments:
Post a Comment