CNS Appendix A Flashcards
Hypophysis Cerebri
Pituitary gland
Epiphysis Cerebri
Pineal gland
Embryo
The name given the developing human prior to the end of the second month of gestation
Fetus
Name applied to the developing human after the second month through parturition (birth)
Neonate
Newborn infant
Dentate
Notched or toothlike
Arcuate
Arranged like an arch
Striae (striatal)
A groove or streak-like formation
Rectus
Straight
Reticular
Net-like
Fissure
A relatively deep groove (infolding)
Sulcus
A relatively shallow groove (infolding)
Gyrus
Tortuous convolution. Usually found between sulci and/or fissures of the cerebrum
Folia
Small page-like gyri of the cerebellum
Nuclei
A cluster or group of neuron cell bodies located within the CNS
Ganglia
A cluster or group of cell bodies within the PNS
Neuron
A nerve cell
Perikaryon
Cell body (soma) of the neuron
Axon
A process of a neuron which carries the impulse away from the cell body
Dendrite
A process of a neuron which carries a charge or impulse toward the cell body
Fiber
A dominately long process (dendrite or axon) in a neuron
Nerve
Whitish appearing PNS structures filled with neuron fibers which innervate the body’s parts
Ramus
Literally means a branch. Major branches off the spinal nerve trunks = white ramus, gray ramus, dorsal ramus, ventral ramus, etc.
Axolemma
Outer plasma membrane of an axon
Neurilemma
Covering around a neuron fiber created by a surrounding cell
Vertebral Canal
Passageway created by the continuous nature of vertebral foramina
Central Canal
Tiny channel found within the spinal cord and inferior medulla oblongata
Aqueduct
Passageway
Leptomeninx
Thin membrane
Pachymeninx
Thick membrane (dura mater)
Somesthetic
To sense the body
Modality
A specific sensory entity (ie. taste, smell, etc)
Proprioception
The modality of subconscious awareness of body position and muscle movement
Kinesthesia
The modality of conscious awareness of body position and movement
Cholinergic
The releasing of choline-like (Ach) molecules at a target site
Andrenergic
The releasing of adrenalin-like (norepinephrine included) molecules at a target site
Chiasma
A crossing (i.e. crossing of optic fibers)
Decussation
A crossing - used more liberally to indicate crossing of fibers and tracts in the CNS
Contralateral
To the opposite side