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Bio110Nervous System

Human Biology: Chapter 13

QuestionAnswerAnswer
What structure of the Neuron conducts impulses away to the cell body? Dendrites
What structure of the Neuron impulses away from the cell body? Axon
What highly specialized cell generates and transmits bioelectric impulses? Neurons
What is the fundamental unit of the Nervous system? Neurons
The layer that insulates the axons, to form protection, is called Myelin Sheath
How many types of Neurons are there? 3
What type of Neurons connect sensory and motor neurons in the spinal cord? Interneurons
Which structure of the Neuron has multiple extensions? Dendrites
Which structure of the Neuron has single extensions? Axon
When the Myelin Sheath is covered it is referred to as_____Matter. White
When the Myelin Sheath is uncovered, it is referred to as______Matter. Gray
The Nervous System is one of ____ communication systems of the body. 2
The Nervous System has two major divisions. The Central Nervous System and the_________Nervous System. Peripheral
The CNS consist of two things. The _______and Spinal Cord Brain
How many steps does Action Potential have? 2
Two types of Ions that are imbalanced across the membrane at resting potential: Potassium Sodium
During this step of Action Potential:Gates open, and sodium ions will rush in, this changes the charge from negative to positive. Depolarization
During this step of Action Potential: Gates open, and potassium move out and changes charge. Repolarization
What is a synapse? A Junction between neurons
What are chemical messengers? Neurotransmitters
What disorder is caused by the destruction of the myelin sheath of nerve cells in the CNS? Multiple Sclerosis
The Nerves of the body are made up of______. Neurons
Interneurons connect what two types of neurons in the Spinal cord? Motor Sensory
What type of test is used for electrical activity of the brain? Electroencephalogram (EEG)
The Central Nervous System is protected by what two bones? Skull Vertebrae
What is the name of the connective tissue membrane, that wraps the central nervous system, for protection? Meninges
Neurons need two things to survive: Oxygen and_____. Glucose
Created by: 1015680049
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