Nerves Flashcards
Nervous system Composed of..
Neurons
Neuroglia
Speech and decision
Frontal lobe
Sensory
Parietal lobe
Vision
Occipital
Auditory
Temporal
2finger shape
Corpuscallosum
Brain stem parts
Mid brain
Pons
Medulla oblongata(involuntary and necessary)
Balance
Cerebellum
Responsible for ventral position
Foramen magnum
Gyrus
Sulcus
Enlarged parts
Gaps bet them
Memory and processing
Hippocampus
Aggression and fear
Amygdala
Hunger/thirst/ hormones
Hypothalamus
The grey matter contains
Cell body
Dendrites
Neuroglia
Non mylenated nerve fibers
Structural and functional unit of nervous system
Neuron
Irritable and conductive
Branching cells that connect neurons to blood vessels and protect
Neuroglia
Cell body names
Soma
Perikaryon
Cell body components
Round vesicular nucleus
Nissl granules(ribosomes) extend to dendrites
Golgi
Mitochondria
Neurofibrils(intermediate filaments)
Microtubules
Why nerve cells do not divide
No centrosome
Long axon
Short axon
Golgi 1
Golgi 2
Axon VS dendrites
Single axon. Multiple dendrites
Thin and long axon. Thick then thin D
Who is centrifugal
Away from cell body
Axon
Many axons
Fiber
Many soma
Ganglia
Neuron types and where to find them
Multipolar(stellate»motor/ pyrimidal»cerebral cortex random arrangement / pyriform»cerebellum)
Unipolar
Bipolar(eye retina, hearing)
Pseudounipolar (spinal)
Causes impulse to accelerate
Mylein sheeth
Nueroglia in CNS
Astrocyte
Oligocyte
Microglia
Ependymal cells
Neuroglia in PNS
Schwann
Satellite
Creates cerebrospinal fluid
Ependymal
Axon repair
Satellite
Repair injury fills spaces long and thin
White matter
Astrocyte
Grey and white
Small cell
Mylein in brain
Oligodendroglia
Mylein in PNS
Schwann
Grey and white
Small
Monocyte of nerves
Microglia
Decrease in cell size and organ tissue size
Atrophy
Alzheimer’s reduces brain size
