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Nervous System : Vincent Solomon per. 5 (List of Drugs that affect the…
Nervous System : Vincent Solomon per. 5
List of Drugs that affect the Brain
Cocaine
Lsd
Methampetamine
Opioids
Marijuana
Inhalents
Ecstasy
Nicotine
Heroin
Psychelics
Ketamine & DCP
GHB & Rohypnol
(Not a drug) Alcohol
Major Divisions of the Brain
Diencephalon
Brain Stem
Cerebrum (Cerebral Hemispheres)
Cerebellum
Tissues( Function & Structure of Neuron )
Structure
Axon
Synaptic End Bulb
Cell Body
Myelin
Dendrite
Node(s) of Ranvier
Function
Relay Eletrical impulses throughout the body
Four Lobes of the Cerebrum
Parietal Lobe
Process; Shape, Color, Size, Pain, Temperature, & Speech
Temporal Lobe
Hearing, Speech, Memory, Sequencing, Organization
Occipital Lobe
Process Vision
Frontal Lobe
Personality, Emotions, Intelligence, Attention, Concentration, Logic, Problem Solving
Layers of the Meninges
Arachnoid Mater
Pia Mater
Dura Mater
Major Functions
Integrative Funct.
Analyzes info & makes decisions
Motor Funct.
may respond to stimuli
Sensory Funct.
Detects Stimuli
Compare & Contrast Autonmic Nervous System
ANS regulates Digestion, Blood Flow, Defecation, Glandular Secretion
The ANS is involuntary & Automatic
Reflex Arc
S3. Synapse/interneuron integrator center to connection btw sensory neuron & motor (efferent) neuron
S4. Motor efferent neuron delivers impulse to target organ
S2. sensory/afferent to CNS Reflex center
S5. Target Organ responds
S1. Sensory receptor to Afferent nerve ending
Coverings & Neurotransmitters
Coverings
Perineurium
Surrounds group of Axons
Epineurium
Surrounds entire nerve
Fasicle
Group of wrapped axons
Endoneurium
Surrounds Individual Fibers w/in nerve
Neurotransmitters
Binds w/ receptors on a postsynaptic neurons cell membrane
Major divisions
Central Nervous System (CNS)
Brain
Spinal Cord
Peripheral Nervous System (PNS)
Motor Neurons
Somatic Nervous System
Autonomic Nervous System
Sympathetic Division
Parasympathetic Division
Sensory Neurons
Diseases that associate with the Brain
Dementia-loss of brain function, mainly memory
Cerebro Vascular Accident- Stroke
Classification of Neurons
Motor (efferent) Neurons
Interneurons (Central or Connecting Neurons)
Sensory (afferent) Neurons
Major Parts & Functions of the Spinal Cord
Structure
Two Deep Longitudinal Grooves
Anterior Median Fissure
Posterior Median Fissure
Grey Matter
White Matter
Tracts
Two Spinal Nerves
Ventral Root
Dorsal Root
Central Canal
Cerebrospinal Fluid (CSF)
Function
House Spinal Nerves
Transmits impulses to and from brain
Action Potenial
S3. Na+ Rushes into Cell Causing Depolarization
S4. Impulse is sent down Axon
S2. Na+ Gates open
S5. K+ rushes into cell
S1. Nerve Impulse Transmits
S6. Repolarization occurs