Central Nervous System Flashcards

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Questions and Answers

Match the following prefixes or suffixes with their meanings:

Hemi- = Half Caud- = Tail Dors- = Back Cerebr- = Brain -itis = Inflammation or disease

What brain region is responsible for learning, memory, and personality?

  • Brainstem
  • Cerebellum
  • Diencephalon
  • Cerebrum (correct)

The brain stem connects the brain and the:

  • Cerebellum
  • Eyes
  • Spinal cord (correct)
  • Ventricles

The cerebellum functions in:

<p>The planning and coordination of movement (B)</p> Signup and view all the answers

What is the correct pathway of development of the cerebellum?

<p>Neural tube, hindbrain, metencephalon, cerebellum (A)</p> Signup and view all the answers

The majority of the cerebral cortex is:

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

The hypothalamus functions in:

<p>Regulating the autonomic nervous system (D)</p> Signup and view all the answers

The hippocampus and amygdala are parts of the:

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

Which of the following is NOT a component of the blood-brain barrier?

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

Cerebrospinal fluid (CSF) is formed by _______ and reabsorbed through arachnoid granulation into ________.

<p>choroid plexuses, dural sinuses</p> Signup and view all the answers

Which of the following tracts does NOT carry sensory stimuli?

<p>Corticospinal tracts (A)</p> Signup and view all the answers

In the spinal cord, nerve tracts or funiculi make up the:

<p>White columns (A)</p> Signup and view all the answers

What part of the spinal cord carries motor information from the brain?

<p>Corticospinal tract (A)</p> Signup and view all the answers

Corticonuclear tracts __________

<p>Communicate with cranial nerve nuclei in the brainstem (D)</p> Signup and view all the answers

Which statement best describes the circadian rhythm?

<p>In a 24-hour period of time, we spend a period of time awake and a period of time asleep (D)</p> Signup and view all the answers

The deepest stage of sleep is experienced during:

<p>Stage IV (A)</p> Signup and view all the answers

Which part of the brain is responsible for cognition?

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

What part of the cerebral cortex is responsible for personality, the creation of an awareness of self, and the ability to recognize appropriate behavior?

<p>Prefrontal cortex (A)</p> Signup and view all the answers

Which of these does not directly describe the autonomic nervous system?

<p>Composed of sensory neurons (D)</p> Signup and view all the answers

Which of the following is an essential characteristic of the blood-brain barrier?

<p>Tight junctions between endothelial capillary cells (D)</p> Signup and view all the answers

Flashcards

Hemi-

Refers to 'half,' used in anatomical terms.

Caud-

Means 'tail,' often relating to brain structures.

Dors-

Indicates 'back,' for spinal and brain orientation.

Cerebr-

Denotes 'brain,' the root for cerebral regions.

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-itis

Signifies 'inflammation' or 'disease'.

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Cerebrum

Responsible for learning, memory, and personality traits.

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Brain Stem

Connects the brain and spinal cord, vital for basic life functions.

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Cerebellum

Plays a role in planning and coordinating movement, ensuring fluid motion and posture.

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Cerebellum Development

The correct developmental pathway includes the neural tube, hindbrain, and metencephalon.

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Neocortex

The cerebral cortex is mostly composed of this; responsible for higher-order brain functions.

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Hypothalamus

Regulates the autonomic nervous system, playing a central role in homeostasis and hormone secretion.

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Hippocampus & Amygdala

Integral parts of the limbic system, involved in emotions and memory processing.

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Cerebrospinal Fluid (CSF) Formation

Created by choroid plexuses and reabsorbed through arachnoid granulation into dural sinuses.

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Corticospinal Tracts

Responsible for motor control and do not carry sensory stimuli.

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Corticonuclear Tracts

Communicate with cranial nerve nuclei located in the brainstem.

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Circadian Rhythm

Within a 24-hour cycle, there are periods of being awake and asleep.

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Stage IV Sleep

Essential for restorative processes during sleep.

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Cerebral Cortex

Responsible for higher cognitive functions, such as reasoning and decision-making.

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Prefrontal Cortex

Critical for personality, self-awareness, and recognizing appropriate social behavior.

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Autonomic Nervous System

Controls vital functions, composed primarily of motor neurons.

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Study Notes

Nervous System Terminology

  • "Hemi-" refers to "half," commonly used in anatomical terms such as hemispheres.
  • "Caud-" means "tail," often used in the context of certain brain structures.
  • "Dors-" indicates "back," utilized in terms related to spinal and brain orientation.
  • "Cerebr-" denotes "brain," forming the root for various cerebral regions.
  • "-itis" signifies "inflammation" or "disease," applicable to numerous medical conditions.

Brain Functionality

  • The cerebrum is primarily responsible for learning, memory, and personality traits.
  • The brain stem serves as a vital connection between the brain and the spinal cord, crucial for basic life functions.

Cerebellum Roles

  • The cerebellum plays a significant role in planning and coordinating movement, ensuring fluid motion and posture.

Development of the Cerebellum

  • The correct developmental pathway of the cerebellum is through the neural tube to the hindbrain and subsequently to the metencephalon.

Cerebral Cortex

  • The majority of the cerebral cortex is composed of the neocortex, responsible for higher-order brain functions.

Hypothalamus Functions

  • The hypothalamus regulates the autonomic nervous system, playing a central role in homeostasis and hormone secretion.

Components of the Limbic System

  • The hippocampus and amygdala are integral parts of the limbic system, involved in emotions and memory processing.

Blood-Brain Barrier

  • Components of the blood-brain barrier include tight junctions in brain capillaries, astrocytes, and endothelial cells, but meninges are not part of this barrier.

Cerebrospinal Fluid (CSF) Formation

  • Cerebrospinal fluid (CSF) is created by choroid plexuses and reabsorbed through arachnoid granulation into dural sinuses.

Sensory and Motor Tracts

  • Corticospinal tracts are responsible for motor control and do not carry sensory stimuli.
  • In the spinal cord, motor information from the brain travels through the corticospinal tract.

Corticonuclear Tracts

  • Corticonuclear tracts communicate with cranial nerve nuclei located in the brainstem, essential for controlling facial and head movements.

Circadian Rhythm

  • Circadian rhythms dictate that within a 24-hour cycle, there are periods of being awake and asleep, reflecting the body's natural cycle.

Stages of Sleep

  • The deepest stage of sleep occurs during Stage IV, essential for restorative processes.

Cognitive Functions

  • The cerebral cortex is responsible for higher cognitive functions, such as reasoning and decision-making.

Prefrontal Cortex

  • The prefrontal cortex is critical for personality, self-awareness, and recognizing appropriate social behavior.

Autonomic Nervous System

  • The autonomic nervous system, which controls vital functions such as heart rate and digestion, is composed primarily of motor neurons rather than sensory neurons.

Blood-Brain Barrier Characteristics

  • A key characteristic of the blood-brain barrier is the presence of tight junctions between the endothelial capillary cells, restricting permeability for certain substances.

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