the nervous systems (scheurink) Flashcards
CCK
strong chemical messenger released after a meal. stimulates release of digestive enzymes and release of insulin and stimulation of afferent neurons
pheromones
communication factors between individuals
central nervous system
spine + brain
peripheral nervous system
all other nerves, which serves to transport info into the CNS
afferent nerves
sensory
efferent nerves
motor
sympathetic nervous system
active in fight/flight situation and controlled by a bunch of nerves
parasympathetic nervous system
active in rest and digest situation and controlled by one nerve
efferent pathway
two step system with two neurons and relay station (ganglion)
preganglionic neuron
neurotransmitter acetylcholine, nicotinic cholinergic receptors
postganglionic neuron
neurotransmitter symp is noradrenaline and parasymp acetylcholine
adrenaline
active shortly before exercise and until shortly before stopping exercise
noradrenaline
only active during exercise
adrenal medulla
releases adrenaline
acetyl choline
activator substance in somatic motor pathway and parasympathetic pathway
hypothalamus
integration centre
enteric nervous system
governs the gastro intestinal system independently
microbiota
influence the brain and behaviour
varicosity
a series of swollen ends of neurons where neurotransmitters are released
