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Nervous Systems II
Fichas del conjunto (33)
- 1Innervationthe nerve supply of
- 2Afferenttowards
- 3Efferentaway from
- 4IpsilateralSame side
- 5Contralateralother side
- 6CNSBrain+spinal cord
- 7PNScranial nerves and spinal nerves
Control somatic structures (skin+musculoskeletal system) - 8ANSControls the organs of the body
- 9vertebrae cross-sectionDorsal white column (cervical/thoracic/lumbar/sacral)
lat/medial division of motor neurons
Ventral horn
Flexors/extensors
Lateral white column - 10What type of tracts are Dorsal white column?Ascending tracts
- 11What do dorsal columns sense?Vibration
Propriception
discriminative touch - 12Sites of decussationspinothalamic decussation at p.o.e.
medulla oblongata - 13Spinothalamic detection of:Pain/'c/touch/pressure
- 14Lower Motor NeuronsCell bodies w/ big dendritic arborisations
Receive a lot of info from descending tracts - 15Functional components of a spinal nerve:General Sensory Afferent
(somatic)
General Visceral Afferent (GVA)
Sensation from viscera
General Visceral Efferent (GVE)
Motor to viscera
General Somatic Efferent (GSE)
Motor to skeletal muscle
Spinal nerve - 16What controls the PNS?The CNS
- 17What controls Autonomous/somatic motor neurons?Somatic + Autonomic motor neurons w/ their cell bodies in the CNS are directly controlled by descending tracts
- 18Descending motor pathwayControl over LMN that innervate skeletal muscles
Cause non-stereotyped movements
Decussation occurs at pyramid of medulla
Will synapse w/ motor neurons - 19SomatotopyOrderly arrangements of the nervous system in relation to the parts of the body
- 20Fasciculus gacilisWM tracts
Sensory info from lower half of body below T6 - 21fasciculus cuneatesSensory info from upper half of body above T6
- 22Mammalian brain principles (5)1. Brains have topographical maps
2. Specific regions tend to have specialised regions
3. More neurons = more integration
4. Neural circuits are plastic
5. Neurogensis confined to specific areas - 23Associated cortexCerebral cortex outside of 1' area
Communication/memory/plan/thought etc. - 24PlanesCoronal - parallel to face
Transverse - parallel to feet
Sagittal - L/R hemispheres - 25Cerebral HemispheresGyrus/i - folds on surface
Sulcus/i - valleys between gyri - 26What connects temporal lobes of the brain?Cerebral cortex/anterior commissures
- 27What part of the brain is involved in coordinating motor control?Cerebellum
- 28What are the components of the brainstem?Pons. Olive. Pyramid
- 29Basal gangliaExtrapyramidal motor control
- 30What are the major inputs received from?Cerebral cortex
thalamus
brainstem - 31Where are the major outputs sent?Thalamic nuclei
Cortex (via thalamus)
Brainstem - 32Thalamus functionRelay sensory pathways to cerebral cortex
- 33Roles of hypothalamusNeuroendocrine control - pituitary gland
Homeostasis
Responds to enviro changes that affect ANS
Part of limbic system - Hunger/thirst/libido
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- Descripción
- El usuario ha eliminado su información de asignaturas Fichas sobre Nervous Systems II, creado por Usuario eliminado el 07/05/2018.
- Creado por
- Usuario eliminado · may 2018
- Actualizado
- 7 may 2018
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- 16
- Historial
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- Creado por J yadonknow · 12 abr 2018
- Copiado por J yadonknow · 7 may 2018
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