Study The Nervous System Flash Cards

 
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The Nervous System

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Describe Multipolar neurons?
-USUALLY HAVE SEVERAL DENDRITES AND ONE AXON
-MOSTLY FOUND IN THE BRAIN AND SPINAL CORD
Most neurons in the brain and spinal cord are this type?
MULITPOLAR NEURONS
Between Dendrites and Axons. Which are mylenated and unmylenated?
DENDRITES=UNMYLENATED
AXONS=MYLENATED
Conserves energy?
PARASYMPATHETIC NERVOUS SYSTEM
Long thin mylinated branches then send signals of what's happening?
AXON
Travel long distances?
SENSORY NEURON
Travel short distances?
SENSORY RECEPTORS
What is an example of a Visceral Somatic Response?
HEART ATTACK CAUSING LEFT ARM PAIN
Involuntary, primarily the autonomic nervous system of the GI tract?
ENTERIC NERVOUS SYSTEM
The motor part of the Autonomic Nervous System consists of two branches called?
-SYMPATHETIC DIVISION
-PARASYMPATHETIC DIVISION
Describe the Autonomic Nervous System (ANS)?
-SENSORY NEURONS THAT CONVEY INFORMATION FROM AUTONOMIC SENSORY RECEPTORS
-PRIMARILY LOCATED IN VISCERAL ORGANS SUCH AS THE STOMACH AND LUNGS
-MOTOR NEURONS CONDUCT NERVE IMPULSES FROM THE CNS TO SMOOTH MUSCLE, CARDIAC MUSCLE, AND GLANDS.
-THESE RESPONSES ARE INVOLUNTARY
Why is the Somatic Nervous System considered to be VOLUNTARY?
BECAUSE THE IMPULSES ARE CONDUCTED FROM THE CNS TO THE SKELETAL MUSCLES IN WHICH THESE MUSCLES ARE VOLUNTARY.
What does the Somatic Nervous System (SNS) consist of?
-SENSORY NEURONS THAT CONVEY INFORMATION FROM SOMATIC RECEPTORS IN THE HEAD
-BODY WALL
-LIMBS FROM RECEPTORS FOR SPECIAL SENSES OF VISION, HEARING, TASTE AND SMELL TO THE CNS.
A neuronal process that carries electrical signals. usually graded potentials, toward the cell body?
DENDRITE
Neuroglia?
SUPPORT CELLS
Analyze, interpret, and store information (primarily sensory information). Helps to generate a response.
INTERNEURONS
Motor neurons/carry info from CNS?
EFFERENT
Sensory neurons/ detect stimuli?
AFFERENT
Modified bipolar, but has axon branches in two directions?
-UNIPOLAR (STRUCTURAL)
One main dendrite/ one axon?
BIPOLAR (STRUCTURAL)
Several dendrites/one axon?
MULTIPOLAR (STRUCTURAL)
What are the functional classifications of a neuron?
-AFFERENT
-EFFERENT
INTERNEURONS
What are the structural classifications of a neuron?
-MULTIPOLAR NEURON
-BIPOLAR NEURON
-UNIPOLAR NEURON
TRUE/FALSE

Most dendrites have myelin?
FALSE
What neurons are myelinated and unmyelinated?
-DENDRITE (UNMYELINATED)
-AXON (MYELINATED)
What is a cell?
THE SMALLEST UNIT OF LIFE
What is a cell body?
-CONTAINS A NUCLEUS AND ALL ORGANELLES TO SUPPORT FUNCTION W/IN A CELL
What is an axon?
Long thin myelinated branches that tend to send signals of what's happening
What is a dendrite?
-A SHORT HIGHLY BRANCHED COMPONENT THAT RECEIVES SIGNALS.
-GIVES THE CELL BODY INFO (WHAT'S HAPPENING)
What are the main parts of a Neuron?
-DENDRITE
-AXON
-CELL BODY
What is a Neuron?
A NERVE CELL
For resting and restoration of energy/rest and digest?
PARASYMPATHETIC NERVOUS SYSTEM
This nervous system conserves energy?
PARASYMPATHETIC NERVOUS SYSTEM
Describe the parasympathetic nervous system?
FOR RESTING AND RESTORATION OF ENERGY/REST AND DIGEST
Describe the sympathetic nervous system?
FAVORS BODY FUNCTIONS THAT SUPPORT ACTIVITY AND RAPID PRODUCTION OF ATP
Favors body functions that support activity and rapid production of ATP?
SYMPATHETIC NERVOUS SYSTEM
The motor part of the ANS (Autonomic Nervous System consists of two branches which are?
-SYMPATHETIC DIVISION
-PARASYMPATHETIC DIVISION
Enteric nervous system?
INVOLUNTARY
Autonomic nervous system?
INVOLUNTARY
Somatic nervous system?
VOLUNTARY
The PNS may be divided into what?
-SOMATIC NERVOUS SYSTEM
-AUTONOMIC NERVOUS SYSTEM
-ENTERIC NERVOUS SYSTEM
What does the PNS (Peripheral Nervous System) consists of?
CONTAINS ALL NERVOUS TISSUE OUTSIDE THE CNS.
What does the CNS (Central Nervous System) consists of?
-BRAIN
-SPINAL CORD
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