Overview Of Nervous System Flashcards
What are the two directional functions of the nervous system?
Input (Afferent)
Output (Efferent)
Other words for Afferent and Efferent in the nervous system (not lymphatic)
Sensory and motor
Name of the neuron that is between the input and motor neuron
Interneuron
_______ from body send signals to the CNS
Receptors
CNS is classified by _____ or ______
Function or structure
What is the functional organisation of the nervous system? (not CNS)
Sensory nervous system (afferent/arrives)
Motor nervous system
What are the two subclassifications of sensory and motor nervous system?
Somatic and Visceral
Body and gut/organ
What are the structural components of CNS?
Brain
Spinal cord
What are divisions of PNS?
Everything in the nervous system besides the CNS
What are the 2 cells of the nervous system?
Neuron (functional/structural unit of the NS) and neuroglial (supporting cells)
What are the structural components of the neuron?
Cell body
Dendrites
Axon
Axon hillock
Oligodendrocyte
Myelinates multiple axons
Astrocytes
Supporting cell
Regulates ions, NS repair
Microglial
Phagocytes/ Eats waste in the NS
Ependymal
Lines the ventricular system
CFS (Cerebrospinal fluid) production
Schwann
Myelinates a single axon (PNS)
What are the three nervous connective tissue names? Deep to superficial
Endonuerium
Perineurium
Epineurium
What are the names of layers of nerve? Deep to superficial
Axon and myelin sheath
Fascicle
Nerve
What is providing nerve fibres to/from and organ or tissue called?
Innervate
