Endocrine System Flashcards
Endocrine system comprise of…
Glands and cells
Endocrine system comprise of glands and cells that secretes …
Chemical signals called hormones into the body’s plasma
What are chemical signals ?
Hormones
it arouse the body’s tissue and cells by stimulating changes in their metabolic activity
chemical messenger
chemical messenger arouse the body’s tissue and cells by
stimulating changes in their metabolic activity
it regulates the entry of glucose into the cell
glucose and insulin
cells within an organ the responds and binds to a particular hormone through specific cellular receptors
target cells/ target tissues
what are the main regulatory functions
Changes in heart rate and blood pressure
Stimulation of uterine contractions and milk release
Modulation of immune system function
Modulation of tissue development
Regulation of ion levels (Na, K, H+)
Regulation of Metabolism
Control of water balance
Control of reproductive functions
Control of blood glucose and other nutrients
Control of food intake and digestion
what is the major controller of the endocrine glands
hypothalamus
what regulates the activity of the pituitary gland
hypothalamus
What are the 2 categories of hypothalamus
Releasing hormone
Inhibiting hormone
Identify the type of hormone in the hypothalamus:
Secretion of another hormone
Releasing hormone
Identify the type of hormone in the hypothalamus:
Halts the release of another hormone (decrease)
Inhibiting hormone
What are the 7 hormones of hypothalamus
Growth hormone releasing hormone
Growth hormone inhibiting hormone
Thyrotropin - releasing hormone
Corticotropin - releasing hormone
Gonadotropin - releasing hormone
Prolactin releasing hormone
Prolactin inhibiting hormone
Which hormone of the hypothalamus has a peptide structure
GHRH
CRH
Which hormones of the hypothalamus have a small peptide structure
GHIH
TRH
GnRH
Which hormone of the hypothalamus have an amino acid structure
PIH
What is the target tissue of GHRG in the hypothalamus
Anterior pituitary cells that secretes growth hormone
What is the target tissue of GHIH in the hypothalamus
Anterior pituitary cells that secretes growth hormone
What is the target tissue of thyrothropin-releasing hormones in the hypothalamus
Anterior pituitary cells that secretes thyroid-stimulating hormone
What is the target tissue of corticotropin-releasing hormones in the hypothalamus
Anterior pituitary cells that secretes adrenocortictropin hormones
What is the target tissue of gonadotropin-releasing hormones in the hypothalamus
Anterior pituitary cells that secretes luteinizing hormone and follicle - stimulating hormone
What is the target tissue of prolactin-releasing hormones in the hypothalamus
Nil
What is the target tissue of prolactin-inhibiting hormone in the hypothalamus
Anterior pituitary cells that secretes prolactin