Week #6 Brain - External Anatomy

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Last updated 11:41 PM on 9/29/26
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7 Terms

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A. Pia mater

B. Arachnoid

C. Dura mater

Layers of the meninges

<p>Layers of the meninges</p>
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Cerebrum

• Largest and most rostral portion of the brain

• Responsible for:

• Learning and intelligence

• Receiving and interpreting sensory information

• Consciousness

<p>• Largest and most rostral portion of the brain </p><p>• Responsible for: </p><p>• Learning and intelligence </p><p>• Receiving and interpreting sensory information </p><p>• Consciousness</p>
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Cerebellum

• Caudal to the cerebrum

• Looks like a minibrain

• Responsible for:

• Coordinating movements

• Balance

• Posture

• Complex reflexes

<p>• Caudal to the cerebrum</p><p>• Looks like a minibrain </p><p>• Responsible for: </p><p>• Coordinating movements</p><p> • Balance</p><p> • Posture </p><p>• Complex reflexes</p>
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Brainstem

Most primitive portion of the brain

• Responsible for:

• Basic body functions

• Breathing

• Cardiac function

• Digestive tract function

• Connects the rest of the brain to the spinal cord

<p>Most primitive portion of the brain </p><p>• Responsible for:</p><p>• Basic body functions</p><p>• Breathing</p><p>• Cardiac function</p><p>• Digestive tract function</p><p>• Connects the rest of the brain to the spinal cord</p>
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Spinal Cord

• Extends from the brainstem down the vertebral column

• Protected by the vertebrae

<p>• Extends from the brainstem down the vertebral column </p><p>• Protected by the vertebrae</p>
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Longitudinal Fissure

• Runs along midline

• Separates the cerebrum into right and left cerebral hemispheres

<p>• Runs along midline </p><p>• Separates the cerebrum into right and left cerebral hemispheres</p>
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Gyri and Sulci

• Gyri (pl) or Gyrus (sin)

Hills or ridges on the surface of the cerebrum

• Sulci (pl) or Sulcus (sin)

Valleys or depressions between the gyri on the surface of the cerebrum