Year 3 Patient MAC: introduction to brain diseases notes in a Q&A format which is most effective study method of revising content actively.
These notes contain the lecture in question and answer form.
What is a brain disease?
Brain disorders include any conditions or disabilities that effect your brain. This includes
conditions that are caused by illness, genetic, traumatic injury.
Why is the brain important?
It is the most important organ in the human body, it controls and coordinates actions and
reactions, allows us to think, feel and enables us to have memories and feelings- all the
things that makes us human.
Label the different parts of the brain?
What is function of the temporal lobe?
The temporal lobes sit behind the ears and are the second largest lobe. They are most
commonly associated with processing auditory information and with the encoding of
memory.
What is the function of the parietal lobe?
The parietal lobes are responsible for processing sensory information from the body like
touch, pain, temperature and the sense of limb position. It is also involved in integrating
information from different modalities like the temporal lobe.
What is the function of the occipital lobe?
It is a visual processing area of the brain. It is associated with visuospatial processing,
distance and depth perception, colour determination, object and face recognition and
memory formation.
What is the function of the frontal lobe?
, The frontal lobes are important for voluntary movement, expressive language and for
managing higher level executive function (cognitive skills like capacity to plan, organise
etc)
At what age does brain stop maturing?
At the age of 25 it stops maturing.
State how many neurons the following brains have- capybara, rhesus,
macaque, western gorilla, human and African mush elephant
What is the brain made of?
The brain is made of neurons, receive input from the other brain cells.
What is a neuron?
Neurons are information messengers, they use electrical impulses and chemical signals
to transmit information between the different areas of the brain, and between the brain
and the rest of the nervous system. Neurons have three basic parts: a cell body, two
extensions known as axon and dendrite.
Explain the following parts of the images and what their function is?
Explain what the function of axon is?
Axon, known as nerve fibre, is a portion of a nerve cell (neuron)which carries nerve
impulses away from the cell body. A neuron usually has one axon which connects it with
other neurons or with muscle or gland cells.
Explain the function of the myelin sheath?
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