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HaneyNervous2
| Question | Answer |
|---|---|
| What are the two types of cells found in the nervous system? | neurons and glia |
| What are the three main parts of the neuron? | dendrites, cell body, axon |
| What are three types of neurons? | 1.Sensory 2.Motor 3.Interneurons |
| Sensory neurons are also called? | afferent neurons |
| Motor neurons are also called? | efferent neurons |
| Interneurons are only found in what part of the nervous system? | CNS |
| What forms myelin in the CNS? | Schwann cells |
| What forms myelin in the PNS? | Oligodendrocytes |
| What are the indentations between adjacent Schwann cells called? | Nodes of Ranvier |
| What are the supporting cells in the nervous system? | Glia |
| What glia cell forms the Blood-brain barrier? | Astrocytes |
| What glia cell carries out phagocytosis? | Microglia |
| What is a nerve? | A group of Peripheral nerve fibers bundled together |
| What are tracts? | bundles of axon in the CNS |
| What is an example of a two-neuron reflex arc? | Knee-jerk |
| What is an example of a three-neuron reflex arc? | withdrawal reflex |
| What is a synaptic knob located? | at the end of an axon |
| What are the two neurotransmitters that are considered natural pain kills? | endorphins and enkephalins |
| What are the three parts of the brain stem? | Medulla Oblongata, Pons, Midbrain |
| What are the three major structures of the diencephalon? | hypothalamus, thalamus, and pineal gland |
| What are the ridges of the brain called? | gyri |
| What are the grooves of the brain called? | sulci |
| What are the functions of the medulla oblongata? | cardiac, respiratory, and vasomotor control center |
| What are the functions of the pons? | influences respiration |
| What are the function of the Midbrain? | relay for visual and auditory impulses |
| What are the functions of the cerebellum? | muscle coordination, equilibrium, and posture |
| What are the functions of the Hypothalamus? | regulation of body temperature, water balance, sleep cycle, appetite |
| What are the functions of the thalamus? | emotions and alerting |
| What are the functions of the pineal gland? | Adjusts output of melatonin, to keep the bodys internal clock on time |
| What are the functions of the cerebrum? | sensory perception, emotions, willed movements, consciousness, and memory |
| What is the tract called that carries impulses from the spinal cord to the brain? | Ascending tracts |
| What is the tract called that carries impulses from the brain to the spinal cord? | Descending tracts |
| What are the three layers of spinal meninges? | dura mater, pia mater, and arachnoid mater |
| Where does cerebrospinal fluid form? | the choroid plexus |
| How many spinal nerves are there? | 31 |
| What is the limbic system called? | emotional brain |
Created by:
mhtgroup
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