Chapter 8 test Flashcards
Name of the nervous system division that includes the brain and spinal cord
Central nervous system
A group of peripheral our sons bundle together and up in an epineurium called a
Nerve
Two types of cells found in the nervous system
Neuron’s, glia
The knee-jerk is a type of Nero pathway called a
Reflex arc
A self propagating wave of electrical disturbance that travels along the surface of a neuron’s plasma membrane
Nerve impulse
The exterior of a rest in your own has a slight charge where is the interior has a slight charge. What are the charges
Positive, negative
The ion that rushes into the neuron during a nerve impulse
Sodium ion
Place where impulses are passed from one neuron to another
Synapse
Acetylcholine and upper mean are examples of blank, which are chemicals used by neuron’s to communicate
Neurotransmitters
Three membranes that make up the meninges
Dura matter, arachnoid layer, and mater
There are how many pairs of cranial nerves and how many pairs of nerves they come from the spinal cord
12,31
Skin surface area supplied by a single spinal nerve
Dermatomes
Part of the autonomic nervous system that regulates effectors during nonstress conditions
Parasympathetic nervous system
The preganglionic axons of the sympathetic nervous system release the Nero transmitter ______? The postganglionic axons release _______?
Acetylcholine, norepinephrine
The preganglionic axons of the parasympathetic nervous system release the neurotransmitter _______? The postganglionic axons release _______?
Acetylcholine, acetylcholine
The autonomic nervous system consists of neurons that conduct impulses from the brain or spinal cord to _______ tissue, ________ tissue, and _________ tissue.
Cardiac muscle, smooth muscle, Glandular epithelial
Cells that make my island for axons outside the CNS
Schwann Cells
Glia cells that help for the blood brain barrier
Astrocytes
A single projection that carries nerve impulses away from the cell body
Axon
Cells that make mileage for axons inside the CNS
Oligodendrocyte
A white fatty substances surrounds and insulates the Axon
Myelin
Selsa act is in my group eating scavengers in the CNS
Microglia
A highly branched part of the neuron that carries impulses toward the cell body
Dendrite
Part of the brainstem that is a conduction pathway between areas of the brain and body; influences respiration
Pons
Sensory really station from various body areas of the cerebral cortex; also involved with emotions and alerting and arousal mechanisms
Thalamus
Carries messages to and from the brain to the rest of the body; also mediates reflexes
Spinal cord
Part of the brainstem that contains cardiac, respiratory, and Vasso motor centers
Medulla oblongata
Sensory perception, will movements, consciousness, and memory are mediated here
Cerebrum
Regulates body temperature, water balance, sleep wake cycles, appetite, and sexual arousal
Hypothalamus
Regulates muscle coordination, maintenance of equilibrium, and posture
Cerebellum
Part of the brainstem that contains relays for visual and auditory impulses
Midbrain
The name of the nervous system division that includes the nerves they extend to the outline parts of the body
Peripheral nervous system
Three neuron reflex arc reaction is called
Withdrawal reflex
