Chapter 2 Flashcards
neuromuscular junctions
place where neuron meets muscle, neuron releases acetylcholine causing motor movement
CNS
brain and spinal cord
PNS
all nerves outside of CNS
PNS
somatic and autonomic
autonomic nervous system
sympathetic and parasympathetic
ANS and drug effects
objective drug effects rooted here, decrease or increase in activity here
cells in the nervous system
neurons
glial cells
oligodendrocytes
CNS form myelin
Schwann cells
(PNS): form myelin
astrocytes
CNS
neuronal function
form lining of blood-brain barrier
ependymal cells
CNS
support epithelial lining of ventricles in CNS
microglial cells
CNS
immune fuction
glial cells
oligodendrocytes
schwann cells
astrocytes
ependymal cells
microglial cells
neuronal structure
synapse
axon
dendrite
soma
axon hillock
axon terminal
types of neurons
interneurons (multipolar)
sensory neurons (unipolar, bipolar): afferent neurons: body to CNS
motor neurons (multipolar): efferent neurons- CNS to body
brain part controlling voluntary movement
prefrontal cortex
motor cortex
pons
cerebellum
contralateral brain function
opposite side of brain controls opposite side of body
medulla
inferior to pons
important for heart beating, breathing
opiods affect here
thalamus
sleep regulation
process sensory information (all senses apart from smell)
depressants affect here
hypothalamus
overlord of endocrine system
amphetamines affect here
limbic system
fear or anxiety
includes amygdala, hippocampus, anterior cingulate
depressants affect here
hippocampus
memory formation (long-term memory)
basal ganglia
motor movement
addiction and addcitive properties
looks stripped (dorsal striatum)
nucleus accumbens
adjacent to limbic system
reward center of brain
ventral striatum
cerebrospinal fluid (CSF)
nutritional support
cushioning
fills ventricles and canals
fills spaces with meninges
