Exam 2
Anatomy 350 with Koot at Michigan State University
About this deck
By: Brittly McBride
Created: 2010-09-25
Size: 20 flashcards
Views: 57
Created: 2010-09-25
Size: 20 flashcards
Views: 57
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Afferent
Impulse originates in the periphery and travels to the CNS
Autonomic Nervous system (ANS):
Often referred to as the "visceral motor system", has two divisions, sympatheyic and parasympatheric; consists of fibers that innervate involuntary (smooth) muscle, Cardiac muscle, and glands
Axon
A nerve fiber, a cytoplasmic process of the cell body
Cell body
the part of the neural cell containing the nucleus and other cellular organelles
Dendrite
cytoplasmic process that extend from the neuron cell body; similar in structure to axons, but typically form a tree-like branching pattern; comprise most of the receptor surface of a neuron ( dendron: Greek for tree
Effector Organ (Tissue)
an organ or tissue that produces an effect e.g. contraction or secretion
Ganglion ( pl. ganglia)
an anatomically distinct collection of neuron cell bodies is located in the PNS
Gray Matter
CNS tissue which containsa predominance of nerve cell bodies and non- myelinated axons
Nerve
a bundle of axons in the PNS, which are held together by layers of connective tissue
Neurons
a type of cell specialized to conduct electrical impules
Nucleus
a collection of neuron cell bodies located in the CNS (compared to ganglion)
Neurotransmitters
Chemical released into the synapse that allow transmission of the electrical impulse to another cell; allow communication between cells as the synapse
Plexus
a complex, interwoven network or peripheral nerves
Reflex
a rapid, automatic response to a stimulus
Reflex arc
the receptor, sensory neuron, motor neuron, and erffector (e.g. muscle) involved in a particular reflex
Somatiic Nervous System
From the greek word soma, which means "body"; transmit sensations of touch, pain temperature, and proprioceptions from sensory receptors in skin, mucosa, seletal muscles and joint capsles; in other words, provides information about the external enviornment, and the body;s position within the environment; permits voluntary and reflexive movement produced by skeletal muscle contraction
Synapse
a specialized site where a neuron communicates with another cell (another neuron, a muscke cell, or a gland cell)
Target tissue
a cell or an organ that is selectively affected by a particular agent
Tract
Bundle of axons located in the CNS ( compare to nerve
White matter
CNS tissue that is predominantly myelinated axons; Organized into tracts
About this deck
By: Brittly McBride
Created: 2010-09-25
Size: 20 flashcards
Views: 57
Created: 2010-09-25
Size: 20 flashcards
Views: 57
About StudyBlue
STUDYBLUE makes things that make you better at school.
Things like online flashcards with photos and audio.
Things like personalized quizzes and friendly reminders about when (and what) to study next.
Think of it as a digital backpack™: access to all of your study materials online and on your phone.
STUDYBLUE exists to make studying efficient and effective for every student, for free. Join us.
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