Chapter 7 Flashcards
CNS processes and interprets stimuli, occurs second
Intergration
Sensory receptors monitor changes and gather input (Occurs first)
Sensory Input
What lines the cavities of the CNS. Cilia circulates and cushions the CNS..
Ependymal Cell
What are the spiderlike phagocytes that help dispose of disease
Microglia
What acts as a protective cushioning cells in the PNS
Satellite cells
What forms myelin sheath around the nerve fibers to produce myelin sheath in the CNS
oligodendrocytes
What is the abundant tissue that forms barrier between capillaries and neurons to exchange nutrients
Astrocytes
Facial and cranial nerves that are found throughout the body make up the what
Peripheral Nervous system
Nerves that send action messages from CNS to muscle and glands are what nerves
Efferent nerves
What are nerves that we have constant control over
somatic nerves
Nerves that receive stimuli such as pain, pressure, or touch are what nerves
Afferent
The brain and spinal cord make up what nervous system
Central nervous system
Nerves that we do not have conscious control over
autonomic nerves
Functions of the Nervous system
- Gather sensory input
- Intergration
- Response
Glia cells account for nearly half of the nervous tissue?
Astrocytes
What is the rough ER called inside the cell body of a neuron?
Nissl Substance
What process in in charge of incoming messages to the cell body?
Dendrite
What does myelin do
- White in color
- Protects fiber
- Waxy, fatty material
- Increases transmission rates
Neruon with a cell body in the CNS whose primary function is connecting other neurons is called what
Association neruon
when an action potential is propgated what ions rapidly diffues out of the cell into the tissue fluid
potassium
Ability to respond to a stimulus
Irritability
Effects response by activating muscles or glands and it occurs last
Motor Output
