The nervous system includes the brain, spinal cord and a complex network of nerves. This system sends messages back and forth between the brain and the body
what are the lobes of the brain decided the cerebrum in to different functions
the frontal lobe
the temporal lobe
the parietal lobe
the occipital lobe
what does the frontal lobe do
it is the planning and engaging in goal directed behaviour, future consequences of current behaviour and choosing good and bad actions
what does the temporal lobe do
it is the processes sensory input including auditory information, language and naming
what does the parietal lobe do
it is the sensory, spatial processing and navigation
what do occipital lobes do
it is the visual processing of the centre
what are the 4 reagions of the brain
cerebrum
diencephalon
brain stem
cerebellum
what is the fore brain
it is the lambic system responsible for emotion, behaviour, motivation, long-term memory and olfaction
what is the forebrain made up of
it is made up of the:
hypothalamus
amygdala: emotion centre of the brain
hippocampus: role of formation new memories about past experiences
thalamus: relay station for sensory information to where it can be processed
what is the consulate gyrus
it plays a role in the reaction to pain and regulation of aggressive behaviour
what is the basal ganglia
it is involved with the rule bases learning, choosing from potential actions working memory and attentions
what is the midbrain motorway
it is the pathway for nerve fibers to carry information from hearing and sight senses
the senses are not processed here
what is the midbrain
it is responsible for: sleep, arousal, pain, consciousness and habituation
what are the midbrain’s neuron receptor
it targets transmitters and drugs, including dopamine and serotonin receptors
the membrane receptor protein that is activated by a neurotransmitter
What does the mediate control
Breathing, blood peressure and heart rate
What is the medulla oblongata
it extends from the hindbrain and merges into the spinal cord
It is responsible for breathing, blood pressure, heart rate
It is also allows for swallowing and coughing reflexes
How does the ventricular system protect the brain
It is the interconnecting canals and cavities inside the brain, filled with cerebrospinal fluid
how do meninges protect the brain
It is the protective layer around the brain made of connective tissue and collagen fibres
How does the blood-brain barrier protect the brain
The membranes which control movement of substances
structure and function of the spinal cord
F- the main function is to relay information about what happens inside and out side the body to and from the brain
S- the spinal cord is protected by the spinal column made of vertebrea
What are the components of the eye
cornea
Lens
Optic nerve
Pupil
Macula
Retina
Iris
What is the cornea
It is the transport dome at the front of the eye that bends light rays to help the eye focus
What is the lens
It is a curved, transparent structure that reflects light rays onto the retina
What is the optic nerve
It is a large sensory nerve that carries visual information from the retina to the brain
What is the pupil
It is a hold in the centre of the iris that controls how much light enters the eye
What is the mascula
It is a small sensitive area in the centre of the retina that provides central vision
What is the retina
It is the inner, light sensitive layer of the eye where vision begins
What is the iris
It is the coloured part of the eye found behind the anterior chamber
What is the function of the optic nerve
It is the nerve fibres that connect the retina and the brain. The retina cells change sight into electrical impulses that the optic nerve sends to the brain( they are sent up side down)
What is the scerla
It is the whites of the eye
What is the choroid
It is a layer of blood vessels that line the back of the eye
What is the ciliary body
It is found behind the iris and includes a ring shaped muckraker that changes the shape of the lens when the eye focuses
What is the medial and lateral Regis muscles medial rectus
It moves the eye inwards or toward the nose and is also known as an adductor