Nervous system Flashcards
The two systems of out body that maintain coordination with our cells are
The Nervous
The endocrin
The three steps of coordination of the nervous system is
change to body info sent to CNS
CNS process info
CNS commands tissues
the brain and spinal cord protected by
cranium and vertebrae column
Define Nerve?
bundles of nerve fibers wrap around connective tissue
A ganglion is
is a knotlike swelling in a nerve where the cell bodies of periph- eral neurons are concentrated.
show the division and subdivision of the PNS
PNS divided in Sensory and Motor division
Sensory divided into Visceral and Somatic sensory
Motor divided into somatic and visceral motor divisions
visceral motor divison is divided into para and sympathetic
The motor efferent division is dived more into
Viscerla motor and somatic motor
3 characteristic of a neuron
Excitability
Contractability
secretion
The 3 classes of neurons
Sensory afferent
interneuron
Motor efferent
neurofibrils are
dense actin filaments of a neuron
chromatophilic substance
the rough er of neuron
T/F mature neurons lack centrioles and can no longer undergo mitosis
True
axolemna
and axoplasm is
neuron membrane
neuron cytoplasm
Name the type of structural neurons and there shape
Multipolar neurons most common
Bipolar Neurons one axon on dendrites
Unipolar Neurons
Anaxonic Neurons
Movement of items away from stroma in a neuron is know as what transport?
anterograde
Movement of items towards the stroma in a neuron is know as what transport?
retrograde
retrograde transports uses this protein to move
dynein
anterograde uses this protein to move
kinesin
what are transported by fast anterograde ?
fast retrograde?
TRANSPORT
Fast Anterograde includes : axolemma,ca+2,acteylcholinesterase, glucose, A.A, nucleotides
Fast Retrograde includes: symaptic vessicles
T/F Damage nerves regenerate at the speed governed by fast axonal transport
False
governed by slow axonal transport
The types and function of glial cells
CNS Oligodendrocytes : myelin Ependymal Cells: CSF Microglia: Phagocytes Astrocytes: BBB
PNS
Schwann Cells : Myelination Nerve damage repair
Satellite Cells: Surround stoma
Parts of the brainstem
midbrain pons medulla oblongata
Parts of the midbrain
Cerebral penducles
Inferior and superior coniculli
Parts of the forebrain
CERBRUM
CORPUS Collosum
DIENCEPHALON
organs associated with the Diencephalon
epithalamus, thalamus, hypothalamus, and ventral thalamus and the third ventricle. mammalian body
which lobe of the brain associated with smell
Temporal lobe
which lobe is associated with balance and coordination
cerebellum
what cranial number is hypoglossal nerve and role
Number 12
tongue muscle responsible of swallowing speech
number and role of spinal acessory nerve
number 11
movement of head
shoulders
cranial nerve/nerves that Moves eyeballs and there cranial numbers
trochlear 4 / ABDUCENS(6) / OCULOMOTOR(3)
cranial nerves responsible for facial nerves
VII Facial nerve
both motor and sensory
T/F
vagus nerves are motor /sensory
TRUE
WHICH CRANIAL NERVES ARE MOTOR ONLY
- M:motor (oculomotor nerve - CN I
- M:motor (abducens nerve - CN VI)
- M:motor (spinal accessory nerve - CN XI)
- M:motor (hypoglossal nerve - CN XII)
cranial 9 name role and type motor
glossopharyngeal (Swallowing, saliva, taste)
both
cranial 3 name role type
oculomotor
Moves eyelid and eyeball and adjusts the pupil and lens of the eye)
motor neuron
Cranial nerve 6 name role and type
abducens
moves eyeballs
motor
where do cranial nerve 11 come out of from
spinal acessory nerve come out of spinal cord
