Questions and Answers
What is the term for the structure that refers to the posterior root?
posterior root
What is the term for the lateral white column?
lateral white column
What is the central canal?
central canal
What structure is known as the posterior median sulcus?
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What is the term for the posterior white column?
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What does the posterior gray horn refer to?
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What is the posterior root ganglion?
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What is the anterior root?
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What is referred to as the anterior gray horn?
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What structure is known as the anterior white column?
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What is the gray commissure?
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What does the anterior median fissure refer to?
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Study Notes
Spinal Cord Anatomy Overview
- The spinal cord has a distinct structure with various regions critical for neural function.
- Diagrams often depict the organization of the spinal cord and associated spinal nerves.
Key Components of the Spinal Cord
- Posterior Root: Carries sensory information from the body to the spinal cord.
- Lateral White Column: Contains ascending and descending pathways for communication between the brain and body.
- Central Canal: A fluid-filled space within the spinal cord that contains cerebrospinal fluid (CSF), providing cushioning and nutrient exchange.
Anatomical Structures
- Posterior Median Sulcus: A deep groove along the back of the spinal cord, marking the separation of the two halves.
- Posterior White Column: Located between the posterior median sulcus and the posterior gray horn, it includes sensory tracts that carry information to the brain.
Gray Matter Regions
- Posterior Gray Horn: Contains sensory neurons that process incoming signals from the body.
- Posterior Root Ganglion: A cluster of sensory neuron cell bodies located just outside the spinal cord, crucial for transmitting sensory information.
Anterior Structures
- Anterior Root: Transmits motor signals from the spinal cord to the muscles of the body.
- Anterior Gray Horn: Houses motor neurons that send commands to skeletal muscles.
- Anterior White Column: Contains pathways involved in voluntary motor control and autonomic functions.
Connectivity Features
- Gray Commissure: A bridge of gray matter connecting the two sides of the spinal cord, facilitating communication between the left and right sides.
- Anterior Median Fissure: A deep cleft along the front of the spinal cord, enhancing its structural stability by dividing the two halves.
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Description
Test your knowledge on the histological structure of the spinal cord with this quiz. Identify key components such as the posterior root and lateral white column. Perfect for students of anatomy and histology.
