Brain - Human Systems - Lecture Slides, Slides for Human Biology
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Brain - Human Systems - Lecture Slides, Slides for Human Biology

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These are the important key points of lecture slides of Human Systems are: Brain, Left and Right, Cerebrum, Cerebellum, Frontal, Parietal, Motor and Sensory Areas, Occipital, Location, Function
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The Brain

The Brain

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The Brain • Different parts of the brain specialise in different

functions • The left and right hand side of the brain have

become very different and specialise in different things. When the functions overlap often they will approach those functions from a different angle.

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Main parts of the brain

• Cerebrum – Considered to be the most recently evolved

part of the brain. Handles higher function such as planning.

• Cerebellum – Deal with learning highly co-ordinated

movements e.g. playing the piano, shooting a basketball through a hoop.

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Lobes of the Cerebral Cortex • Frontal

– Planning – Seems to deal with many function we associate

with a persons personality. • Parietal

– Motor and Sensory areas. • Temporal

– Hearing • Occipital

– Sight

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Part Location Function Cerebrum The largest part of the

brain. Divided into two halves.

The many sensory areas, motor areas and association areas.

Cerebellum Crinkly-surfaced lump at the rear of the brain.

The unconscious control of muscles.

Cortex The 2-4mm thick layer of folded grey matter covering the cerebrum

Most of the co- ordinating of the body’s muscles, as well as what we call thought.

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Thalamus Two egg-shaped masses of grey matter inside the cerebrum.

The main relay centre between the brainstem and the cortex. Sort the information before sending it to the cortex.

Hypothalamus Small mass, about 4 grams, below the thalamus and above the pituitary glad.

Source of some hormones. Connects nervous system to the endocrine system. Helps control hunger, thirst temperature and many other function of the body.

Brainstem Connects the spinal cord to the cerebrum.

Many nerves pass through on their way to and from the brain. Control centres for heart rate, breathing, and many other body functions such as vomiting, swallowing and coughing. Docsity.com

membrane

• The brain is covered by 3 membranes called menenges: – Dura mater – Arachnoid mater – Pia mater

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