Exam (elaborations)
NURS 517 Units 1-4 Questions answers latest update
- Course
- NURS 517
- Institution
- University Of Hawaii - Manoa
NURS 517 Units 1-4 Questions answers latest update
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NURS 517 Units 1-4Afferent vs Efferent PNS pathways - Afferent - carries info towards CNS
Efferent - carries info away from CNS
PNS Somatic vs Autonomic Nervous System - Somatic - voluntary motor control of
skeletal muscle
Autonomic - regulation of viscera, involuntary control of organs, divided into
PNS/PSNS
Features of neuron - - electrically excitable
- transmits chemical info between neurons to effector organ
Neuroglial cells (types in CNS/PNS) - Provide support, protection, nutrition for
neurons
CNS: Astrocytes, microglia, oligodendrocytes
PNS: Schwann cells & satellite cells
3 components of neurons - Cell body - located in CNS
Dendrites - carry messages to the cell body
Axons - carry impulses away from the cell body
,What is myelin made of? - Lipids
Difference between white and grey matter - White: increased myelination
Grey: less myelination - mostly cell bodies
Nodes of Ranvier - Interruptions in myelin sheath on axon
Astrocytes - Form contact btw neuronal surface and blood vessels
Rapid transport for nutrients/metabolites
Form part of BBB
Process info and memory storage
Oligodendrytes - Form myelin sheath in CNS
Schwann cells - Form myelin sheath in PNS
Microglia - Clear cellular debris
Ependymal cells - Line ventricles and choroid plexuses
Produce CSF
Brain stem - Connects brain hemispheres, cerebellum and spinal cord
,Midbrain/medulla/pons
Reticular formation - Collection of nuclei in brain stem that connects brain stem
to cortex
Controls vital reflexes (CVS/Resp)
Parietal Lobe Fx - Somatic/sensory input
Occipital Lobe Fx - Visual association
Temporal Lobe Fx - Auditory, smell, memory consolidation
Wernicke area Fx - Reception and interpretation of speech
Insula Fx - Processes sensory/emotional info and relays to other parts of the brain
Corpus Callosum Fx - Connects 2 hemispheres
Basal Ganglia Fx - Coordinates voluntary movement
Cognitive/emotional fxs
, Limbic System Fx - Primitive behavior responses and reaction to
emotion/motivation/mood
Areas that make up the limbic system - Amygdala, Hippocampus, Hypothalmus,
Fornix
Thalamus Fx - Processes incoming sensory impulses
Hypothalamus Fx - Maintains constant internal environment
Cerebellum Fx - Reflexive, involuntary, fine motor control, balance, posture
Pons Fx - Connects the cerebellum to the brainstem
Medulla Oblongata Fx (Myelencephalon) - Reflex activities (HR, RR, BP, swallow,
cough)
What is CSF made of? - 80% Albumin
Vertebral column breakdown - 33 vertebrae
7 Cervical
12 Thoracic
5 Lumbar
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