Quiz 2 Flashcards
What are the roles of the hormones that come into play with love and pair bonding?
Oxytocin has to do with bonding and dopamine has to do with the reward pathway.
What is Dopamine?
A neurotransmitter (found in the brain). It reinforces feelings by releasing neurons in the brain and is part of the reward pathway.
What is Oxytocin?
A peptide (protein) hormone produced by the hypothalamus (synthesized) and released by the posterior pituitary gland.
How does the posterior pituitary gland function?
Its release of hormones is rapid and it does not synthesize its own hormones.
How does the hypothalamus function?
It is 50% nervous system and 50% endocrine system and produces neurosecretory cells.
What are the 2 types of endocrine cells?
The ones within endocrin organs and the ones in non-endocrin organs.
What organs are considered non-endocrine?
Placenta, heart, small intestine and stomach, and apidose (fat) tissue
What is ghrelin?
It is the hormone found in the small intestine and stomach that stimulates apetite.
What is Leptin?
It is the hormone found in fat tissue that inhibits hunger.
What is the function of surface receptors?
To receive hormones that cannot pass through the cell membrane (protein/not fat-soluble), a 2nd messenger is activated when the hormone binds to surface and it then changes the cell activity.
What is a gene?
A small section of DNA (protein).
What is the function of internal receptors?
To receive hormones that can pass through the cell membrane (lipid/fat-soluble), receptors may be in cytoplasm or nucleus and activates genes when hormones bind to it.
What are the functions of endocrine cells?
To secrete hormones while travelling in blood, where hormones will go bind to specific receptors on target cells.
What is a hormone and what are the different types?
A chemical molecule, there are protein hormones and steroid (fat) hormones.
