This hormone makes you feel sleepy when it’s dark outside.
Melatonin
extra: which gland?
The nervous system uses _____ signals for fast responses
Electrochemical impulses/signals
BONUS 2: two main types of electrochemical signals
Hint: One involves traveling down axons, the other involves hopping the synaptic gap.
This “master gland” actually takes orders from the hypothalamus
anterior pituitary
This hormone increases blood calcium by stimulating osteoclasts.
parathyroid hormone (PTH)
BONUS: whats is its antagonist
The NTM is released by all preganglionic neurons in both the SNS and PNS and also by postganglionic PNS
acetylcholine (ACh)
This hormone tells your kidneys “yo hold on to this water we forgot to bring water bottles to the beach”
antidiuretic hormone (ADH)
extra: stimulus?
SNS is also known by this dramatic nickname
"fight or flight"
BONUS: name the NTM involved in SNS
This part of the pituitary stores but does not synthesize hormones
posterior pituitary
The mechanism that keeps hormone levels in check
negative feedback
____ receptors respond to epinephrine and norepinephrine, while ____ receptors respond to Acetylcholine.
Adrenergic, cholinergic
BONUS: what are the two types of cholinergic receptors
This anterior pituitary hormone indirectly promotes body growth by triggering IGF release.
Growth Hormone
extra: stimulus?
These two neurotransmitters are released by the adrenal medulla during a sympathetic response.
epinephrine and norepinephrine
This vascular connection allows hypothalamic hormones to reach the anterior pituitary
hypophyseal portal system
BONUS: name a couple hormones that flow through this
The hypothalamus releases __, which triggers TSH, which stimulates __.
TRH--> TSH--> T3 and T4
This is an example of what kind of stimulation?
These cells in the pancreas produce insulin.
beta cells of the islets of Langerhans
BONUS: which cells produce glucagon
BONUS: whats the effect of both?
Excess secretion of this hormone after epiphyseal plate closure leads to acromegaly.
growth hormone (GH)
extra 1: what is the other name for GH?
extra 2: what hormone inhibits GH?
This system doesn’t text back right away, but when it finally does, it leaves a message your whole body won’t stop thinking about for days.
endocrine system
This stalk connects the hypothalamus to the pituitary gland
infundibulum
ADH’s worst nightmare: This condition turns you into a constantly thirsty pee-machine.
Diabetes insipidus
These adrenal cortex zones secrete aldosterone, cortisol, and androgens respectively.
zona glomerulosa
zona fasciculata
zona reticularis
BONUS: medulla secretes what?
This hormone helps eject milk and babies—because why not multitask?
oxytocin
extra: who makes this and who stores it?
The adrenal medulla releases its hormones in response to signals from this specific division of the nervous system.
Sympathetic nervous system
This hormone duo is made in the hypothalamus, stored in the posterior pituitary, and released when your uterus or kidneys start acting up.
oxytocin and antidiuretic hormone (ADH)
FYI: When the uterus stretches during labor, sensory receptors detect mechanical stretch. Signals travel to the hypothalamus, which tells the posterior pituitary to release oxytocin.
->. Causes the uterus to contract even more—which leads to more stretch, triggering more oxytocin, and so on.
This is an example of a ?????
(one of the rare ones in the body)!
This hormone kicks in when your blood sodium is low or you’re dehydrated, telling your kidneys to cling to water like it’s the last Hydro Flask on Earth.
antidiuretic hormone (ADH)
BONUS:
These pancreas cells just want to help digest your food and get none of the hormone fame.
Acinar cells
BONUS: what do they make exactly and where do those get realeased?