9. Endocrine System Flashcards
Also known as Hypophysis or Master’s gland
Pituitary gland
Pituitary gland is found in
Hypophyseal fossa of Sella turcica of Sphenoid bone
Pituitary gland is controlled by
Hypothalamus
Other name for Anterior pituitary gland
Adenohypophysis
Other name for posterior pituitary gland
Neurohypophysis
Connects pituitart gland to Hypothalamus
Infundibular stalk
Which is larger, Anterior or Posterior pituitary gland
Anterior
Adenohypophysis communicates with the Hypothalamus via
Hypophyseal portal system
Adenohypophysis secretes what hormones
(A)GP : (B)FLAT
2 portal veins in the body
🔹Liver: Hepatic portal vein
🔹Hypophysis
A vein towards a capillary (exception)
Portal vein
All veins are ___(flow)___ heart
Towards the heart
All arteries are ___(flow)___ heart
Away from the heart
Hormones secreted by Acidophiles or Alpha cells
“(A)GP”
✔️Growth hormone
✔️Prolactin
Other term for Growth hormone
Somatotropin
4 effects of growth hormone
✔️Chondrogenesis
✔️Protein anabolism
✔️Glycogenolysis
✔️Lipolysis
Breakdown of glycogen into glucose
Glycogenolysis
Process of formation of proteins
Protein ANABOLISM
Breakdown of proteins
Protein CATABOLISM (cut)
Glycogenolysis happens during what state? What hormone?
Hypoglycemic state: GLUCAGON
Glycogen to Glucagon = ^ blood sugar
4 Hormones produced during HYPOGLYCEMIC STATE
“GG EC”
Glucagon
Growth hormone
Epinephrine
Cortisol
Hormone involved during HYPERGLYCEMIA
Insulin only
Stimulates MILK PRODUCTION in mammary gland
Prolactin
Hormones secreted by Basophiles or Beta cells
“(B)FLAT”
FSH
LH
ACTH
TSH
Signals release of cortisol from adrenal gland
ACTH
Stimulate:
✔️Estrogen production (females
✔️Androgen binding protein (males)
✔️Gametogenesis (both)
FSH
Stimulates:
✔️Ovulation
✔️Formation of Corpus Luteum
✔️Testosterone production (males)
LH
Stimulates Zon Fasciculata (adrenal cortex) to produce cortisol
ACTH
Stress steroid hormone
Cortisol
Stimulates Thyroid to produce T# and T4
TSH
More potent thyroid hormone
T3
More numerous thyroid hormone
T4
Releasing hormones are controlled by the _____ to stimulate cells of Adenohypophysis to secrete hormones
Hypothalamus –– releasing hormones
Release of GH
Somatocrinin (go for this✨)
or
Growth hormone releasing hormone
Inhibits release of GH
Somatostatin
“SomatoSTOPin”
Release of Prolactin
PRH