How can we help?

You can also find more resources in our Help Center.

The Nervous System!

Woo Hoo!!!
STUDY
PLAY
Parasympathetic
What is the division of the autonomic Nervous System that is involved with the relaxation response?
Sympathetic
What division of the autonomic nervous system stimulates the alarm, or 'fight or flight' reaction?
Neurons
What are impulse conducting cells that possess properties of excitability and conductibility?
Nodes of Ranvier
What are the gaps located at intervals along myelinated axons that increase their rate of conduction?
Autonomic
What is the division of the peripheral nervous system that is involuntary and controls organs, glands etc?
Synapse
What is the junction between two neurons called?
myelin
What is the fat and protein insulating substance around some neurons that assists conduction?
central nervous system
What division of the nervous system contains the brain, spinal cord, cerebrospinal fluid and meninges?
nerve
What is a bundle of neurons held together by several layers of connective tissue?
peripheral nervous system
What division of the nervous system contains the cranial and spinal nerves?
neurotransmitter
What are chemical that facilitate, arouse or inhibit transmission of nerve impulses?
reflex
What is an instantaneous, involuntary response to a stimulus?
axons
What are the extensions called that transmit impulses away from the cell body?
dendrites
What are the extensions called that receive and transmit impulses towards the cell body?
meninges
What is the special connective tissue that covers the brain and spinal cord called?
cerebellum
What part of the brain controls muscle tone, coordination, balance etc?
nociceptors
What are the sensory receptors that detect pain?
cerebrospinal fluid
What is the clear fluid called that circulates around the brain and spinal cord?
medulla oblongata
What is the most inferior part of the brain stem which contains the respiratory, cardiac and vaso-motor centers?
proprioceptors
What is the general term for receptors that respond to changes in muscle length, tension and body position?
Sensory and motor input, interpretation, intelligence and emotion
What are the functions of the nervous system?
Central and Peripheral
What are the 2 major divisions of the nervous system?
Sympathetic and parasympathetic
What are the two divisions of the autonomic nervous system?
motor nerves
When you move your fingers, what type of nerves are you using?
Cerebrum, cerebellum, diencephalon and brain stem
What are the four major regions of the brain?
cerebrum
What is the largest region of the brain?
Diencephalon
Which part of the brain contains the thalamus and hypothalamus?
blood-brain barrier
What is the semi-permeable wall of capillaries that helps prevent passage of some drugs into the central nervous system?
thermoreceptors
What sensory receptors detect temperature changes?
photoreceptors
What sensory receptors are located in the retina?
cones
What photoreceptors produce color vision?
rods
What photoreceptors are sensitive to black, white and gray?
lobes
What are the regions of the cerebrum called?
sensory impulse
An impulse that travels towards the central nervous system is called what?
motor impulse
An impulse that travels away from the central nervous system is called what?
occipital lobe
Which cerebral lobe contains the center for visual input?
spinal cord
What exits the skull through the Foramen Magnum?
reflex arc
What is the smallest, simplest portion of the nervous system capable of receiving a stimuli and yielding a response? (1 afferent and 1 efferent)
somatic
Which division of the peripheral nervous system is voluntary?
plexus
What is a network of intersecting nerves in the peripheral nervous system?
dermatome
What is an area of skin that's served by a specific nerve root?
Golgi Tendon Organs
Which receptors are activated by tension and stretch and respond by inhibiting contraction?
muscle spindles
What type of receptors respond to fast, ballistic stretching and cause reflexive contraction?
synaptic vesicles
What are the sac-like structurs in the synaptic bulbs that produce and store neurotrasmitters?
chemoreceptors
What type of receptor detects changes in smells, tastes, and changes in blood chemistry?
PAIN
What sensation can the brain not detect?
cell body
Which part of the neuron contains the nucleus?
afferent
What is a synonym for sensory nerves?
efferent
What is a synonym for motor nerves?
exteroceptor
What type of receptor responds to stimuli from outside the body?
interoceptor
What type of receptor responds to stimuli from inside the body?
pitch
What is the quality of a sound that is dependent on vibration speed?
volume
What is the loudness of a sound called?
mechanoreceptor
What general type of receptor is a Golgi Tendon Organ?
Neurology
What is the study of the Nervous System called?
physiopathological reflex arc
What's the term that describes an abnormal reflex arc?
Acetylcholine
What is the most common neurotransmitter responsible for muscle contraction?
Neuroglia (glia)
What's the connective tissue that supports, nourishes, protects, insulates and organizes neurons?
Schwann
What type of cells make up myelin?
action potential
What is a synonym for nerve impulse?
ganglion
A cluster of nerve cell bodies in the peripheral nervous system is called what?
Myotome
A group of skeletal muscles innervated by a single spinal segment is called what?
sense of smell
Olfaction is another word for what?
malleus, incus and stapes
What are the three small bones in the middle ear called?