chapter 8 (nervous system) Flashcards
This protects and insulates nerve fibers
neuroglia
Nervous system division that controls voluntary skeletal muscles
Somatic nervous system
A membrane that covers the cerebrum of the brain
meninges
Nervous system division that carries impulses towards the CNS
Sensory division
Moves the nerve impulses away from the cell body of a neuron
Axon
Nervous system division that carries impulses away from the CNS
Motor division
Separation from one neuron to the next by a tiny gap
Synaptic cleft
Brings the nerve impulses toward the cell body of a neuron
Dendrites
Area of the brain responsible for vision and memory of objects
Occipital lobe
Area of the brain responsible for regulating heart rate and blood pressure
Medulla oblongata
Area of the brain responsible for memory planning and memorizing
Frontal lobe
Area of the brain responsible for controlling equilibrium and muscle timing
cerebellum
Area of the brain responsible for sneezing coughing swallowing and vomiting
Medulla oblongata
Area of the brain responsible for hearing and smelling
Temporal lobe
Second largest area of the brain
Cerebellum
The area of the brain hanging from the hypothalamus and is responsible for the release of growth hormones in the body
Pituitary gland
Chemicals released by the axon terminal’s into the synapse to trigger the next action potential
Neurotransmitters
Special support nerve tissue that anchors and supports the neuron, connecting it to the food supply which are blood capillaries
Astrocytes
Area of the brain responsible for facial expressions and breathing regulation
Pons
Nervous system division in charge of resting and digesting
Parasympathetic
Nervous system division in charge of fight or flight
Sympathetic division
At the point of stimulation the membrane becomes permeable to Na+ for an instant and they quickly move into the cell.
Depolarization
K+ automatically leave the cell until the sale is back to its resting state.
Repolarization
K+ concentration is much higher inside the cell. The Na+ concentration is much higher outside the cell.
Resting
