Nervous System Flashcards
system that receiving signals from and sending commands
to different areas of the body also known as communication system
nervous system
list the functions of nervous system
Receiving sensory input, integrating information, controlling muscles and glands, maintaining homeostasis, and establishing and maintaining mental activity.
the 2 major division of nervous system
Central nervous system and peripheral nervous system
carries information about the different
tissues of the body to the CNS and delivers commands from the
CNS to other body tissues that alter body activities.
PNS or peripheral nervous system
composed of sensory neurons, Responsible for sensation
sensory division
-Composed of motor neurons,responsible for response
motor division
a motor division system that involves voluntary movement
Somatic
a motor division system that involves involuntary movements
autonomic
responsible for generating and spreading action potentials
neurons
the main body of the neurons.Has organelles like nucleus nucleoulus,er,golgi apparatus
cell body
packages the proteins in vesicles
golgi aparatus
group of cell bodies in CNS
nuclei
group of cell bodies in PNS
ganglia
Short branched extensions that received the action potential and relay it to the body
dendrites
-a long extension from the body that transmits action potential to other cells
axon
area where the cell body and axon conencts
-action potential is generated from trigger zone
trigger zone
bundle of axons in CNS
nerve tract
bundle of axons in PNS
nerves
end part of the axon where it transmit signals to other neurons,etc
axon terminal
type of neuron that has single axon only
pseudo unipolar neuron
type of neuron that has Single axon and dendrite
bipolar neuron
type of neuron that has several dendrites and a single axon
multipolar
Afferent neurons conductt signal toward the CNS
sensory
Efferent neurons that conduct signal away from the CNS
motor
conduct action potential from one neuron to another within the CNS
interneuron
Cells of nervous system and supports neurons
glial cells
the type of Type of glial cells that responsible for blood-brain barrier
astrocytes
the type of glial cell that regulates flow of Cerebrospinal fluid
ependymal cells
