Hormones And The Control Of Appeities Flashcards
What are the classes of hormone
Steroid
Peptide
Amine
Glycoprotein
What are glycoproteins
Hormones that would have two chains (alpha and beta)
Have the carbohydrate side chains
What are the types of glycoproteins
TSH
LSH
FSH
HcG (when pregnant)
When would a hormone be active
When would be free
What are the mechanisms for steroid hormones
Attach to receptors in cytoplasm, HSP, complexwould enter the cell
Attach to a receptor in the nucleus, attach to the DNA so would then have the transcription and translation of the enzymes
What type of proteins would the anterior pituitary gland produce
The tropic hormones
What would be the role of the carrier proteins
They would allow the insoluble hormones to be carried in the blood stream
(Steroid and thyroid hormones would not be water soluble so would need the proteins)
What are the amine hormones
Derived from the amino acids
Thyroid hormones (T4/T3)
Histamine
Adrenaline
5-HT
What area of the brain and what nuclei would be involved in the control of appetite
The hypothalamus
The acrucate centre (in the cluster of nuclei)
What is part of the primary centre
Stimulatory: agouti regulated peptide, neuropeptide Y
Inhibitory: alpha-MSH (would bind to the MC4 receptors), CART, Beta-endorphins
What is the function of the secondary centre
Would modulate the appetite
What is gherlin
A hormone that would be released from the stomach when empty, signals hunger
When full, the stomach would stretch and would stop the release of the Ghrelin
What is Leptin
Hormone that would be released from the fat tissues,
Inhibitor of stimulatory centre
Stimulates inhibitory
Also induces the UCPs in the mitochondria, so the excess energy from the food would be released heat
What hormones would suppress appetite
Leptin
Adiponectin
Amylin
Insulin
What is PYY (peptide tyrosine tyrosine) hormone
Released in the Illeum and the colon, when food would enter from the stomach
Would then suppress appetite
