The Endocrine System Flashcards
Endocrine Gland
a ductless gland that makes and secretes hormones
Exocrine Gland
gland with duct that secretes enzymes
Hormone
a chemical messenger that travels in the bloodstream to an area to which it has an effect
Differences between Nervous and Endocrine System
Nervous: Fast, travels by neurons
Endocrine: Slow, travels by bloodstream
Thyroid
Thyroxine
Controls metabolism
Pituitary
FSH,LH
thickens endometrium
Adrenal Gland
Adrenaline
“Fight or flight” response
Pancreas
Islets of Langerhans
Insulin
Hormonal Deficiency
Thyroxine
Low Production:
Signs: Weight loss, goitre
Treatment: Thyroxine supplements
High Production:
Signs: Weight gain , goitre
Treatment: Removal of part of thyroid gland
What is the pancreas both an exocrine and endocrine gland?
Endocrine: Islets of Langerhans: insulin
Exocrine: Pancreatic Duct : Enzymes
Hormone Supplements
small amount of hormones given
Feedback Mechanism
TSH & Thyroxine
T.S.H is produced in the pituitary which cause thyroxine to be produced when enough thyroxine is produced it inhibits T.S.H levels
