Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
28 Cards in this Set
- Front
- Back
|
af |
toward |
|
|
ef |
away |
|
|
inter |
between |
|
|
intra |
within |
|
|
algia |
pain |
|
|
esthesia |
perceive sensation |
|
|
mural |
wall |
|
|
plegia |
paralysis |
|
|
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 motor divisions, sympathetic and parasympathetic; consists of fibers that innervate involuntary (smooth) muscle, cardiac muscle, and glands |
|
|
Axon |
a nerve fiber, the single long cytoplasmic process of the cell body |
|
|
cell body |
the part of the nerve cell containing the nucleus and other cytoplasmic organelles |
|
|
dendrite |
cytoplasmic process that radiate from the neuron cell body; similar in structure to axons, but typically for 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, ex. skeletal m, smooth m, cardiac m, glands |
|
|
ganglion |
an anatomically distinct collection of neuron cell bodies located in the PNS |
|
|
gray matter |
CNS tissue whcih contains a predominance of nerve cell bodies and non-mylinated axons |
|
|
nerve |
bundle of axons in the PNS, which are held together by layers of connective tissue |
|
|
neuron |
a type of call specialized to conduct electrical impulse |
|
|
nucleus |
a collectof neuron cell bodies located in the CNS (compared to Ganglion) |
|
|
neurotransmitters |
chemicals released into the synapse that allow transmission of the electrical impulse to another cell; allow communication between cells as the synapsep |
|
|
plexus |
a complex, interwoven network of peripheral nerves |
|
|
reflex |
a rapid, automatic response to a stimulus |
|
|
reflex arc |
the receptor, sensory neuron, motor neuron, and effector (ex. muscle) involved in a particular reflex |
|
|
somatic nervous system |
from the Greek work soma, which means "body"; transmits sensations of touch, pain, temperature, and proprioception from sensory receptors to skin, mucosa, skeletal muscles and joint capsules; in other words, provides information about the external environment, 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 muscle cel, or a gland cell) |
|
|
target tissue |
a cell or an organ tha tis 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 axon; organized into tracts |
