Cerebrum and Its Functions

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Questions and Answers

What is the primary function of the cerebrum?

  • Facilitating sensory processing and spatial awareness
  • Processing visual information
  • Regulating heart rate and breathing
  • Controlling higher brain functions like thought and memory (correct)

Which part of the brain is primarily involved in decision-making and problem-solving?

  • Parietal lobe
  • Cerebellum
  • Frontal lobe (correct)
  • Temporal lobes

What structure connects the two cerebral hemispheres?

  • Thalamus
  • Corpus callosum (correct)
  • Cerebellum
  • Hypothalamus

Which lobe of the brain is responsible for processing sensory information such as touch and temperature?

<p>Parietal lobe (A)</p> Signup and view all the answers

The outer layer of the cerebrum, involved in perception and reasoning, is known as what?

<p>Cerebral cortex (D)</p> Signup and view all the answers

What is the main function of the axon in a neuron?

<p>To transmit electrical impulses away from the cell body (D)</p> Signup and view all the answers

Where are axon terminals located and what is their primary function?

<p>At the synapse; to release neurotransmitters (C)</p> Signup and view all the answers

What role does the myelin sheath play in neuron function?

<p>It insulates the axon to increase impulse conduction speed (B)</p> Signup and view all the answers

What do dendrites primarily do in the neuron structure?

<p>They receive signals from other neurons (A)</p> Signup and view all the answers

What is the importance of the Node of Ranvier in neuron physiology?

<p>It allows for the regeneration of action potentials along the axon (A)</p> Signup and view all the answers

What is a primary function of Purkinje neurons?

<p>Facilitating motor coordination and balance (A)</p> Signup and view all the answers

Which of the following is NOT a function of glial cells?

<p>Integrating signals from multiple neurons (D)</p> Signup and view all the answers

What is a characteristic feature of astrocytes?

<p>Star-shaped structure in the CNS (C)</p> Signup and view all the answers

Which cell type plays a role in maintaining the blood-brain barrier?

<p>Astrocytes (C)</p> Signup and view all the answers

Which of the following describes a function of glial cells?

<p>Providing nutrients to neurons (C)</p> Signup and view all the answers

Which area of the brain is primarily responsible for initiating body movements?

<p>Motor cortex (C)</p> Signup and view all the answers

What is a primary function of the medulla oblongata?

<p>Controlling heart rate (B)</p> Signup and view all the answers

Which part of the brain is involved in memory retention?

<p>Hippocampus (B)</p> Signup and view all the answers

Which system regulates involuntary bodily functions such as heart rate and digestion?

<p>Autonomic nervous system (B)</p> Signup and view all the answers

What part of the brain is primarily responsible for balance and coordination?

<p>Cerebellum (C)</p> Signup and view all the answers

What is the primary function of the basal ganglia?

<p>Movement regulation and habit formation (D)</p> Signup and view all the answers

Which part of the brain serves as a relay station for sensory information?

<p>Thalamus (B)</p> Signup and view all the answers

What function is primarily regulated by the hypothalamus?

<p>Homeostatic functions like hunger and temperature (A)</p> Signup and view all the answers

Which of the following components is NOT part of the brainstem?

<p>Cerebellum (D)</p> Signup and view all the answers

Which structure is located above the brainstem and plays a critical role in homeostasis?

<p>Diencephalon (C)</p> Signup and view all the answers

Flashcards

Cerebrum

Largest part of the brain, controlling thought, memory, and movement.

Cerebral Hemispheres

Two halves of the cerebrum, connected and controlling opposite body sides.

Frontal Lobe's function

Planning, decision-making, and voluntary movements.

Parietal Lobe's function

Processes sensory info like touch, temperature, and space.

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Occipital Lobe's function

Processes visual information.

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Axon function

Transmits electrical signals away from the cell body.

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Axon Terminals release

Neurotransmitters to communicate with other cells.

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Cell Body (Soma) role

Integrates signals and generates outgoing signals.

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Dendrites' job

Receive signals from other neurons.

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Myelin Sheath's effect

Speeds up nerve impulse conduction.

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Purkinje Neuron Location

Located in the cerebellum of the brain.

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Purkinje Neuron Function

Important for coordinating movement and balance.

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Glia Cell Description

Nervous system helper cells, supportive cells.

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Astrocyte Function (1)

Helps maintain the blood-brain barrier.

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Astrocyte Function (2)

Supplies nutrients to neurons.

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Basal Ganglia

A group of brain structures deep within the cerebrum, primarily involved in movement control, habit formation, and reward processing.

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Diencephalon

A brain region located above the brainstem that serves as a relay station for sensory information and regulates essential bodily functions.

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Thalamus

A component of the diencephalon that acts as a relay station for sensory information, filtering and transmitting it to the cerebral cortex.

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Hypothalamus

A small but crucial brain area beneath the thalamus, regulating basic survival functions like hunger, thirst, temperature, and sleep.

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Brainstem

The 'base' of the brain connecting it to the spinal cord, controlling essential life functions like breathing, heartbeat, and alertness.

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Medulla Oblongata

The lowermost part of the brainstem, responsible for vital functions like breathing, heart rate, and blood pressure.

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Cardiac Center Location

The medulla oblongata contains the cardiac center, which regulates heartbeat and blood pressure.

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Cerebellum's Role

The cerebellum coordinates movement, balance, and posture.

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Autonomic Nervous System Function

The autonomic nervous system controls involuntary actions like breathing, digestion, and heart rate.

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Brain Area for Memories

The cerebral cortex is the part of the brain that stores memories.

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Study Notes

Cerebrum

  • Largest part of the brain
  • Divided into left and right hemispheres
  • Responsible for higher brain functions (thought, memory, voluntary movement)

Cerebral Hemispheres

  • Two halves of the cerebrum
  • Connected by the corpus callosum
  • Each controls opposite sides of the body
  • Has specialized functions

Cerebral Cortex

  • Outer layer of the cerebrum
  • Composed of gray matter
  • Involved in perception, reasoning, language, and voluntary movements

Frontal Lobe

  • Located at the front of the brain
  • Responsible for planning, decision-making, problem-solving, and voluntary movement
  • Contains the motor cortex

Parietal Lobe

  • Located behind the frontal lobe
  • Processes sensory information (touch, temperature, spatial awareness)

Temporal Lobes

  • Located on the sides of the brain
  • Involved in hearing, memory, and language comprehension

Occipital Lobe

  • Located at the back of the brain
  • Processes visual information

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