Questions and Answers
endocrine system - ANSW-glands secret hormones directly to the blood
nervous tissue - ANSW-fast and direct to target
functions of neurons - ANSW-excitable, conductive, secrete neurotransmitters, respond to stimuli
dendrites - ANSW-receive signals from other neurons
cell body - ANSW-contain nucleus
axons - ANSW-can be myelinated or not, help with faster transmission
synapse - ANSW-point in between two neurons
unipolar neurons - ANSW-axon branches off cell body in two places
type of neurons are sensory neurons - ANSW-unipolar
multipolar neurons - ANSW-all dendrites go directly into the soma
bipolar neuron - ANSW-1 dendrite enters soma, 1 axon exits soma
bipolar neuron - ANSW-
unipolar neuron - ANSW-
multipolar neuron - ANSW-
neuroglia - ANSW-supporting cells in the nervous systems
supporting cells in CNS - ANSW-oligodendrocytes
supporting cells PNS - ANSW-schwann cells
Parts of an axon - ANSW-endoneurium, perineurium, epineurium
endoneurium - ANSW-made of schwann cell and axon
perineurium - ANSW-bundles into fasciles
epineurium - ANSW-outer layer to the axon made of dense irregular tissue
circuits - ANSW-allow body to respond to a stimuli to get back to homeostasis through the spinal cord
meninges - ANSW-dura, arachnoid, pia
white matter - ANSW-made of axons
gray matter - ANSW-made of cell bodies
afferent neurons - ANSW-detect stimuli, delivery sensory info
afferent neurons enter info to the - ANSW-dorsal root
efferent neurons - ANSW-delivery motor information to the target muscles or glands
efferent neurons deliver info through the - ANSW-ventral root
interneurons - ANSW-integrate sensory and motor information
current - ANSW-flow of charges particles from one point to another, require voltage
potential - ANSW-difference in electrical charge between inside and outside of the neurotransmitters
chemical concentration gradient - ANSW-caused by a diffusion high to low with Na+ channels opening
electrical gradient - ANSW-ions drawn to the opposite charge