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Cerebrum
The cerebrum is the largest part of the human brain, associated with:
Higher brain function such as thought and action
Each hemisphere is divided into 4 sections called “lobes”
Frontal Lobe
Parietal Lobe
Occipital Lobe
Temporal Lobe
Frontal LobesLocated behind the forehead, the frontal lobes are the largest lobes of the brain.
It is involved in:
Planning
Organizing
Problem Solving
Memory
Impulse Control
Decision making
Controlling our behaviour and emotions
The left frontal lobe plays a large role in speech and language
Parietal Lobes
Located behind the frontal lobes, the parietal lobes are responsible for:
Orientation
Recognition
Perception of stimuli (e.g. touch, hot or cold, pain)
Temporal Lobes
The temporal lobes are located on the sides of the brain under the parietal lobes and behind the front lobes about the level of the ears. They are responsible for:
Recognizing and processing sound
Understanding and producing speech
Various aspects of memory
Occipital Lobes
Located at the lower back of the head, the occipital lobes:
Receive and process visual information
Contain areas that help in perceiving shapes and colours
CerebellumLocated at the back of the brain, the cerebellum controls:
Balance
Movement
Coordination
The cerebellum also allows us to:
Stand upright
Keep our balance
Move around
Hypothalamus
The hypothalamus is located above the pituitary gland. It is responsible for:
Homeostasis (helps the body regulate its body temperature)
Motivational behaviour (e.g. hunger, thirst)
Pituitary Gland
Located at the base of the brain, the pituitary glands:
Regulates and releases important hormones to our body (e.g. growth and reproductive hormones)
Brain StemLocated at the base of
the brain, the brainstem is composed of the midbrain, the pons and the medulla. It regulates basic involuntary functions necessary for survival such as:
Breathing
Heart rate
Blood pressure
Swallowing
It also plays a role in alertness and sensation
Spinal Cord
The spinal cord is a bundle of nerve fibers located inside the backbone that connects the brain to different sensory and motor parts of the body
Prac: Sheep Brain Dissection
- Follow the instructions on how to handle the dissection specimen and instruments *BE CAREFUL*
- If the smell of the brain is bothering you, try breathing through your mouth
- Read the discussion questions before you start the prac so you can think about these while you’re dissecting.
- Don’t forget to wash your hands after dissecting
- STAY AT YOUR OWN BENCH. DO NOT MOVE BETWEEN BENCHES
- BE SAFE! SCALPELS ARE SHARP! These must not leave the benches. DO NOT WASH THE SCALPELS. This will be done for you.
- Clean Up: Get the OK from me to clean up first. Fold the newspaper to enclose all the parts of the dissected brain. Place this into the garbage bag specifically for brain waste. DO NOT PUT IT IN THE GARBAGE BIN.
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