Brain Anatomy and Function

From the study guide

Course Outline

  1. Brain Composition and Signaling
  2. Major Brain Divisions
  3. Cerebral Cortex and Hemispheres
  4. Brainstem and Cerebellum
  5. Meninges and Cerebrospinal Fluid
  6. Lobes and Deep Structures
  7. Brain Blood Supply and Ventricles
  8. Cranial Nerves

1. Brain Composition and Signaling

Key Concepts & Definitions

  • Central nervous system: Consists of the brain and the spinal cord extending from it.

★ Must-know

📌 Gray matter is primarily composed of neuron cell bodies and processes information, whereas white matter is primarily composed of myelinated axons and transmits information to other parts of the nervous system.

  • The brain communicates through chemical and electrical signals carried by billions of neurons, with some messages remaining within the brain and others traveling through the spinal cord and peripheral nerves.

Further detail

  • The average adult brain weighs about 3 pounds and is approximately 60% fat.

Memory Hook

Gray matter processes; white matter transmits.

2. Major Brain Divisions

Key Concepts & Definitions

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Practice quiz preview

1. Which structures make up the central nervous system?

2. Which pairing correctly distinguishes gray matter from white matter?

3. How does the brain communicate with the rest of the nervous system?

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Flashcard preview

What does the central nervous system consist of?

The brain and the spinal cord extending from it.

What is the average weight of an adult human brain?

About 3 pounds.

What percentage of the adult brain is fat?

Approximately 60%.

What is gray matter primarily composed of?

Neuron cell bodies.

What is the main function of gray matter?

It processes information.

What is white matter primarily composed of?

Myelinated axons.

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Frequently asked questions

What does the Brain Anatomy and Function study guide cover?

It covers the core concepts of Brain Anatomy and Function, organized by topic with the key definitions, explanations and takeaways, so it's easier to learn and remember.

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How many questions are in the Brain Anatomy and Function quiz?

The practice quiz has 24 multiple-choice questions, each with an explanation. Use it to check what you know and find your gaps.

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How do I study Brain Anatomy and Function with flashcards?

There are 58 flashcards on Brain Anatomy and Function, with a question on the front and the answer on the back. Try to recall each answer before you flip, and let spaced repetition bring back the ones you miss.

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