Questions and Answers
What are the three parts of the brain?
What is the oldest part of the brain?
Hindbrain
What is the newest part of the brain?
Forebrain
Which of the three parts of the brain regulates heart rate, breathing, and balance?
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What part of the hindbrain regulates blood pressure, heart rate, and breathing?
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What part of the hindbrain regulates body movement, attention span, sleep, and alertness?
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What part of the hindbrain regulates balance, coordination, and posture?
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Which of the three parts of the brain regulates vision and hearing?
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What part of the midbrain regulates attention, sleep, and arousal?
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Which of the three parts of the brain deal with thought and emotion?
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What do you call the part of the forebrain that involves planning and execution of plans and also controls impulses?
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Which part of the forebrain acts as the relay station for transmitting sensory information?
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Which part of the forebrain regulates body temperature, the storage of nutrients, aspects of motivation and emotion, hunger and thirst, sexual drive, and the ability to care for offspring?
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Disturbances within what part of the brain can lead to unusual drinking and eating behavior?
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What part of the forebrain deals with aggression, anger, and fighting instincts?
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What part of the forebrain deals with learning, memory, emotion, hunger, and libido?
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What happens if the limbic system is damaged?
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This is where all your knowledge is located. 70% of the brain.
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This is the outer cortex of the cerebrum, called 'white matter' and is divided into two hemispheres.
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This is what connects the brain's two hemispheres. If this is cut, the two halves would not be able to communicate.
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What does EEG or Electroencephalogram measure?
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What does a CT Scan or Computerized Axial Tomography take pictures of?
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What does an MRI or Magnetic Resonance Imaging take pictures of?
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PET Scan: Positron Emission Tomography is when what is injected into the body?
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Study Notes
Parts of the Brain
- The brain consists of three main parts: forebrain, midbrain, and hindbrain.
- Hindbrain is the oldest part of the brain, involved in basic life functions.
- Forebrain is the newest part of the brain, associated with complex thought and emotional processing.
Hindbrain Functions
- Regulates vital functions such as heart rate, breathing, and balance.
- Medulla oblongata controls blood pressure, heart rate, and respiratory functions.
- Pons oversees body movement, attention span, sleep, and alertness.
- Cerebellum is responsible for balance, coordination, and posture.
Midbrain Functions
- Midbrain regulates sensory processing, specifically vision and hearing.
- The reticular activating system within the midbrain manages attention, sleep, and arousal.
Forebrain Functions
- Forebrain is critical for thought, emotion, and advanced cognitive functions.
- Prefrontal cortex is involved in planning, execution of tasks, and impulse control.
- Thalamus acts as a relay station for sensory information, managing sensations like temperature and pain.
- Hypothalamus regulates body temperature, nutrition storage, emotional aspects, and urges such as hunger and thirst.
- Damage to the hypothalamus can lead to abnormal eating and drinking behaviors.
- Amygdala deals with emotions related to aggression, anger, and survival instincts.
- Limbic system encompasses structures involved in learning, memory, and emotion; damage can impair the ability to create new memories while retaining old ones.
Cerebrum Structure
- Cerebrum is home to approximately 70% of the brain's mass and contains all acquired knowledge.
- Cerebral cortex is the outer layer of the cerebrum, composed of "white matter" and divided into two hemispheres.
- Corpus callosum connects the two hemispheres, enabling communication; severing this connection leads to disjointed functionality.
Brain Imaging Techniques
- EEG (Electroencephalogram) measures electrical activity within the brain.
- CT Scan (Computerized Axial Tomography) creates images by taking X-ray slices through hard brain matter.
- MRI (Magnetic Resonance Imaging) provides images of soft brain matter.
- PET Scan (Positron Emission Tomography) involves injecting radioactive sugar into the body to visualize metabolic activity in the brain.
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Description
Test your knowledge of the brain's three main parts: forebrain, midbrain, and hindbrain. Each flashcard presents key definitions and questions to enhance your understanding of brain anatomy. Perfect for students and anyone interested in neuroscience.
