Nervous System
Name the two nervous systems
Central and Peripheral
If you had a spinal injury, which nervous system is effected?
Central nervous system
The brain is broken up into 3 main parts called
Forebrain, mid brain, hind brain
List three things that are 'right hemisphere' functions.
emotional expression and thought
art appreciation
musical appreciation
Hemispheric specialisation is also known as
Brain lateralisation
Name the part that facilitates and protects the electro-chemical signal
Myelin sheath
Psychological effects are to do with __________ and physiological effects involve ____________
the brain
the body
Name the two biological components of the central nervous system
The Brain and the Spinal Cord
The autonomic nervous system is self-regulatory (self operating). Which body parts are associated with this system
Heart, lungs, blood vessels
The lobes of the brain make up the main part of the brain called the cerebral cortex (the outer layer). Name the four lobes
Frontal, Parietal, Occipital, Temporal
Which lobe is responsible for voluntary movement, abstract thinking, regulation of emotional behaviour?
Frontal
∙A network of neurons extending from the top of the spinal cord up to the thalamus. Filters incoming sensory stimuli and redirects them to the cerebral cortex, activating the cortex and influencing our state of physiological arousal and alertness
Reticular activating system
Give one example of a stimulant and depressant
S= Caffeine, Cocaine, Speed
D= Alcohol, Heroin
The peripheral nervous system has two sub systems, they are...
The Peripheral nervous system is divided into
Somatic and Autonomic nervous system
The portion of the cerebral cortex near the top of the head that receives sensory input for touch and body position.
What are the parietal lobes?
If I was listening to music by watching the music video, which lobes of the brain am I using?
Temporal (auditory)
Occipital (visual)
The forebrain develops last and is therefore responsible for
Motor functions, thinking, perceiving and reasoning, emotional responses, producing and understanding language
(All lobes are here so the forebrain is responsible for all functions related to the lobes)
Use of Cocaine leads to loss of appetite which is a physiological or psychological effect?
Physiological
Which sub system of the peripheral nervous system is further divided into the sympathetic and parasympathetic nervous systems?
The Autonomic nervous system
The autonomic system is part of the peripheral nervous system and is further divided into
Sympathetic and Parasympathetic systems
What is the temporal lobe responsible for?
Receiving auditory (sound) information such as language (verbal) or door slamming (non-verbal)
What is the Occipital lobe's main functions?
Receive/process visual information such as shapes, colour and motion
Midbrain main functions
Motor movement, eye movement, audio and visual processing, helps keep awake alert and vigilant
Give one physiological and one psychological effect of alcohol
Loss of inhibitions and a thinning of the blood
What are three main functions of the Somatic nervous system.
Monitor bodily functions
Receive sensory info from eyes, skin etc
Communicates sensory info the the CNS
Enables voluntary muscle movement
When does the sympathetic nervous system operate and what are two reactions
During moments of high arousal or activity.
1. Dominates the ANS during times of high emotion or physical activity
2. Mobilises bodies resources, drawing extra energy for intense moments
3. Releases fats, sugars, adrenalin (glands) increases blood flow (heart rate)
4. Fight or Flight response
The part of the brain that joins the two hemispheres is called
the Corpus Callosum.
If the corpus callosum was damaged, what might a person struggle to do?
See something with their left visual field and perform 'left brain' task such as name it or talk about it
The hind brain's main components
Medulla, Pons, Cerebellum
Give three psychological effects of cocaine (two short term and one long term effects)
elevate mood, sense of euphoria, mental alertness
long term: auditory hallucinations, paranoid thoughts
Outside of high arousal Parasympathetic system returns and keeps us in a normal more relaxed state called...
Homeostasis
The brain receives ________ information from the PNS and sends _________ information out
Sensory
Motor
Where is Wernicke's area located and what is its function?
Temporal lobe
Responsible for the comprehension of language and the formulation of meaningful sentences
Where is Broca's area located and what is its function?
Left frontal lobe
Directs and controls muscles associated that articulate speech such as throat, mouth, jaw, tongue and face.
What is the main function of the thalamus
Body's relay system for all info from the senses (except smell) is processed here before sent to the brain
List the lobes and the associated primary cortex
∙Frontal (motor cortex)
∙Parietal (sensory cortex)
∙Temporal (auditory cortex)
∙Occipital (visual cortex)
Main function of the Hypothalamus
Smart control system. Keeps you in a stable state (homeostasis). Directly influences the ANS and manages hormones