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Practice questions for this set
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-Densely packed and intertwined
Choose an answer
1 The CNS is composed of what? 2 What are special visceral senses
3 In the nervous tissue cells are ? 4 Stimulus
Don't know?
Terms in this set (135)
-composed of the brain & spinal cord
The CNS is composed of what?
The CNS is the intreating & ______ Command Center
_______.
Peripheral nerves link all regions CNS
of the body to the ___
The most neuronal cell bodies CNS
are located within the what?
Stimulus changes detected inside or outside the body
-General "widespread" somatic senses
Somatic sensory
-receptors spread throughout outer tube of body
, -touch
-pain
Somatic sensory includes -vibration
-pressure
-Temperature
Proprioceptive senses Detect stretch in tendons and muscles
body sense positions and movement of body in space
-Hearing
-balance
Special somatic senses
-vision
-Smell
General Visceral senses -Stretch, pain, temperature, nausea, and hunger
where are general visceral -digestive, urinary tracts, and reproductive organs.
widely felt?
-Taste
What are special visceral senses
-Smell
General Somatic motor -signals contraction of skeletal muscles.
General Somatic motor is often -voluntary nervous system
called what?
Brachial Motor -Typical skeletal muscle derived from somitomeres.
-regulates the contraction of smooth and cardiac muscle
Visceral Motor -makes up automatic nervous system
-controls function of visceral organs
visceral motor is often called -Involuntary nervous system
what?
In the nervous tissue cells are ? -Densely packed and intertwined
Neurons Transmit electrical signals
Support cells (neuroglial cells) -In the CNS
are located where?
What are some properties of -Nonexcitable
support/Neuroglial cells? -surround and wrap neurons
Neurons are the _______ structural -basic
unit of the nervous system
Specialized cells conduct ..... -electrical impulses along the plasma membrane
-longevity: can live and function for a lifetime
What are some special
-do not divide: lose their ability to undergo mitosis
characteristic of neurons?
-High metabolic base: require abundant oxygen and glucose.
where are most neuronal cell CNS
bodies located?
Ganglia Neuronal cell body in PNS
Structure of a typical neuron
-Extensively branching from the cell
body
-Transmit electrical signals toward the
Dendrites
cell body
-Function as receptive sites for
receiving signals from other neurons