· web viewbrain structure and function guided notes name:_____ the brain is divided into four...
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Brain Structure and Function Guided Notes
Name:____________________________________
Cerebrum
Largest region Responsible for _______________________________________________:
◦ speech◦ memory◦ reasoning◦ emotion◦ consciousness◦ interpretation of sensation◦ voluntary movement
Divided into left and right hemispheres Wrinkled texture
◦ Raised areas called ___________________◦ Shallow grooves called ____________________◦ Deep groves called _______________________
The brain is divided into four main regions:
_________________________
_________________________
_________________________
_________________________
The _________________________________________ is one especially important area of white matter – it’s the connection between the two cerebral hemispheres
Diencephalon structure
The diencephalon consists of three parts:
__________________________
__________________________ (completely enclosed by thalamus)
__________________________
Regulation of autonomic functions, including◦ __________________________________
◦ __________________________________
◦ __________________________________
_____________________________________________________
_____________________________– emotional / visceral brain (sex, food, thirst, pain, pleasure)
The outer part of the cerebrum – called the _________________________________________-- is composed of gray matter
Gray matter = ________________________ ____________________________________
This is where thought, sensation, etc. occur
The inner part of the cerebrum is mostly white matter
White matter = ______________________ ____________________________________
This is the connection between different regions of the brain
Circle the parts that are diencephalon. Square the parts that are brain stem.
Brain Stem
The brain stem consists of three parts
__________________________
__________________________
__________________________________________
Controls many autonomic functions, including:
_________________________
_________________________
_________________________
Also allows passage of nerves fibers between brain and spinal cord
Cerebellum
Back of the brain, beneath cerebrum Like cerebrum, it has
◦ Two hemispheres◦ Wrinkled surface◦ Outer cortex made of gray matter outside and inner region of white matter
Functions
_______________________________________
• _______________________________________
You Do
Using 4 different colors, label the four major regions of the brain.
Label: gyrus, sulcus, cortex (gray matter), white matter, fissure
List the major functions of each section here:
Cerebrum:
Diencephalon:
Brain stem:
Cerebellum:
List three differences between gray matter and white matter.
Label the parts: cerebrum, cerebellum, spinal cord, medulla oblongata, mammilary body, thalamus, pineal body, pons, hypothalamus, corpus callosum, midbrain, optic chiasma
Questions
Following a stroke, a person develops the symptoms listed below. Which part of the brain was damaged?
ataxia (an inability to coordinate muscular movement)
Drooping left side of face
Cerebrospinal Fluid
Fluid that surrounds and protects brain and spinal cord
Produced by the _________________________ from blood plasma, and drains back into the blood
Some diseases can be diagnosed by examining CSF collected during a spinal tap
Which glial cells are involved with CSF? What do they do?
Blood brain barrier
Protects the brain from toxins, most drugs, and fluctuations in other chemicals such as ions
Two major barriers
◦ ___________________________________________
◦ ___________________________ which control flow ofmaterials from blood vessels to neurons
Why is the blood brain barrier necessary?
Does the blood brain barrier block the passage of alcohol?