Please enable JavaScript.
Coggle requires JavaScript to display documents.
Central Nervous System (Drugs that affect the Brain (Alcohol, Anabolic…
Central Nervous System
Major Functions of the Nervous System
Sensory Function
Motor Function
Integrative Function
Major parts of the Brain
Cerebrum
Diencephalon
Thalamus
Emotions memory awareness and cognition
Hypothalamus
Regulation of eating and drinking and temperature
Limbic system
Emotion aspects and memory
Pituitary gland
Cerebellum
Vermis
Has arbor vitae
Cerebellar Penduncles
Connects Cerebellum to other parts of brain and regulates coordination balance and posture
Brain Stem
Pons
Connects spinal cord with brain and links them together
Medulla Oblongata
Regulates heart rate constricts blood vessels and rate and depth of breathing
Lobes of the Brain
Frontal Lobe
Primary Motor Cortex
Controls voluntary actions
Broca's Area
coordinates muscle movement for speech
Association areas
complex functions such as critical thinking
Occipital Lobe
Visual recognition
Temporal Lobe
Smell/hearing
Parietal Lobe
Primary Sensory Cortex
Receives impulse fo touch pain and temperature
Layers of the Meninges
Dura Mater
Arachnoid Mater
Pia Mater
Spaces and Ventricles
Subdural Space
Subarachnoid space
Fourth Ventricle
Third Ventricle
Structure of a Neuron
Cell Body
contains nucleus and other organelles
Dendrites
receiving portions short tapered and highly branched
Axons
start as a single fiber but may give off branches
Classification of Neurons
Multipolar
several dendrites and one axon
Bipolar
one main dendrite and one axon
Unipolar
just one process
Sensory Neurons
transmit sensory impulses
Motor Neurons
transmit motor nerve impulses from CNS to effectors
Interneurons
forms links between other neurons
Function and parts of Spinal Cord
Reflex
Rapid,predictable, and involuntary responses to stimuli
Reflex Arc
Direct route from a sensory neuron to an interneuron motor neuron to an effector
Action Potential
Nerve impulse is transmitted during action potential
Strong enough stimulation or nerve impusle causes Sodium gates to open then sodium rushes into the cell causing depolarization
If a strong enough depolarization occurs threshold potential is reach and impusle sent down axon
Drugs that affect the Brain
Alcohol
Anabolic Steroids
Cocaine
Dissociative Drugs
GHB and Rohypnol
Nicotine
Methamphetamine
MDMA
Marijuana
Inhalants
Heroine
Hallucinogens