Neural Anatomy
These are the gaps between Schwann cells and their myelin sheaths.
Nodes of Ranvier
This clear, colorless fluid cushions the brain and is found in the subarachnoid space.
Cerebrospinal Fluid (CSF)
This division of the Autonomic Nervous System is known as the "fight-or-flight" system.
Sympathetic division
These receptors are specialized to detect changes in temperature.
Thermoreceptors
This is the place where signals are transmitted between two neurons or a neuron and a muscle.
Synapse
This part of the neuron transmits impulses away from the cell body.
This brain wave state is associated with being alert and mentally active.
Beta waves
There are this many pairs of spinal nerves.
31
This is a protective, involuntary, but predictable response to stimuli.
Reflex
This neurotransmitter is vital for muscle contraction.
Acetylcholine
These connective tissue membranes line the skull and vertebral column and surround the brain and spinal cord.
Meninges
This largest portion of the diencephalon relays sensory information to the appropriate areas of the cerebrum.
Thalamus
This area of the skin is supplied by a single sensory spinal nerve.
Dermatome
This term describes a decrease in sensitivity to a prolonged stimulus.
Adaptation
This neurologic pathology is characterized by a "double crush" or compression of the median nerve at the wrist.
Carpal Tunnel Syndrome
This is the name for the grooves found on the surface of the brain’s cerebrum.
Sulci
This term refers specifically to bundles of nerve fibers located inside the Central Nervous System.
Tracts
This cranial nerve (CN X) regulates visceral activities like heart rate and digestion.
Vagus nerve
These types of receptors receive internal stimuli, such as hunger, thirst, or the urge to defecate.
Interoceptors (visceroreceptors)
This is the process where a neurotransmitter is absorbed back into the presynaptic neuron.
Reuptake
This specific structure is a network of intersecting spinal nerves.
Plexus
These "star-shaped" glial cells help form the blood-brain barrier.
Astrocytes
These are groups of skeletal muscles supplied by a single motor spinal nerve.
Myotomes
This law states that an impulse will be conducted at maximum capacity or not at all.
All-or-None Response
This term describes the time during which a neuron is unable to conduct another impulse until it repolarizes.
Refractory period