Nervous Tissue Flashcards
The CNS is made of the:
brain and spinal cord
The PNS contains
cranial nerves, spinal nerves and ganglia
somatic sensory functions are considered ___
voluntary
visceral sensory components are considered ___
involuntary
somatic motor is typically under ____ control
voluntary
autonomic motor is _____
involuntary
When the autonomic motor component does not function properly, it leads to a condition called
dysautonomia
immature ____ cells in the _____ could be becoming new neurons in adults
progenitor, hippocampus
immature progenitor cells are called
neural stem cells
____ cells but not ___ cells are able to perform mitosis
glial, neuron
The _____ is responsible for memory processing the brain
hippocampus
the autonomic motor component is divided into the _____ and _____-
sympathetic and parasympathetic
Neoplasms from unregulated ell growth in the nervous system are composed of ___ cells
glial
_____ is the spreading of cancer
metastasis
____ cells far outnumber ____
glial, neurons
____ cells do not transmit nerve impulses
glial
_____ in the CNS and ____ cells in the PNS produce insulating material called ___
oligodendrocytes, Schwann, myelin
The ___ ____ ____ protects the brain from toxins but allows some nutrients and so is considered ___ _____ partially due to surrounding ____
blood brain barrier, selectively permeable, astrocytes
cells that line the internal cavities or ___ of the brain and the ___ ___ of the spinal cord are called:
ventricles, central canal, ependymal
_____ ___ and nearby blood capillaries together form a network called ____ ____ which produces ____ ____ ____
ependymal cells, choroid plexus, cerebral spinal fluid
ependymal cells have ___ on their apical surfaces that help circulate CSF
cilia
What happens in the 3rd week of development of an embryo?
the neural groove appears and by the end, the groove has fused to form a neural tube
the cranial part of the neural tube expands to for the __ and the caudal part expands to for the ___ ___
brain, spinal cord
Ascending paralysis is a condition related to
guillane barre syndrome
What syndromes result in demyelination?
MS, GBS, multifocal motor neuropathy
What disease is a result of reduced dopamine?
Parkinson’s
What is a fast progressing degenerative disease that is usually not inherited?
Amyotrophic lateral sclerosis
a blood clot that blocks the blood flow to a portion of the brain is an ___ stroke
ischemic
a section of an artery bursts and bleeds in the brain is a ___ stroke
hemorrhagic
having a substantial or complete absence of brain at birth is ___
ancephaly
spina bifida ___ is more serious and usually leads to ____ whereas spina bifida ___ is asymptomatic
cystica, paralysis, occulta
