Spinal Cord Anatomy Quiz

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  • 1/23 Questions

    Gray matter of the spinal cord is shaped like a

    • Caterpillar
    • Cacoon
    • Butterfly
    • Pear
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About This Quiz

Check out our "Spinal Cord Anatomy Quiz" and test your knowledge regarding the anatomy and characteristics of spinal cord cells, tissues, bone, and nerves. If you have carefully attended your biology classes and learned enough about the anatomy of the spinal cord, this quiz might be easy for you. The human spinal cord is the long and cylindrical structure that connects the human brain and lower back. It contains numerous cells, tissues, and nerve cells. Do you know all about them in detail? Let's check it out with the quiz below.

Spinal Cord Anatomy Quiz - Quiz

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  • 2. 

    Complex interlacing networks.

    • Plexuses

    • Lexuses

    • Sexuses

    • Flexuses

    Correct Answer
    A. Plexuses
    Explanation
    The correct answer is "plexuses" because it is the plural form of "plexus", which refers to a network of nerves, blood vessels, or lymphatic vessels. The word "complex" in the question suggests that these networks are intricate and interconnected, further supporting the use of the plural form. The other options, "lexuses", "sexuses", and "flexuses", are not valid words and do not make sense in the given context.

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  • 3. 

    There are ____ pairs of spinal nerves.

    Correct Answer
    31
    Explanation
    The spinal cord is made up of a series of nerves that branch out from it, known as spinal nerves. These nerves emerge from the spinal cord through openings between the vertebrae in the spine. There are a total of 31 pairs of spinal nerves in the human body. Each pair is connected to a specific segment of the spinal cord and is responsible for transmitting sensory and motor information to and from different parts of the body.

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  • 4. 

    The number of lumbar bones is ______

    Correct Answer
    5, five, Five
    Explanation
    The number of lumbar bones is 5.

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  • 5. 

    Thoracic bones number is ____

    Correct Answer
    12, twelve, Twelve
    Explanation
    The correct answer is 12, twelve, Twelve. This suggests that the number of thoracic bones is 12.

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  • 6. 

    The spinal cord is CNS while the Spinal nerves are PNS.

    • True

    • False

    Correct Answer
    A. True
    Explanation
    The spinal cord is part of the central nervous system (CNS) because it is located within the vertebral column and is responsible for transmitting signals between the brain and the rest of the body. On the other hand, spinal nerves are part of the peripheral nervous system (PNS) because they originate from the spinal cord and extend out to various parts of the body, allowing for communication between the CNS and the peripheral tissues. Therefore, the statement that the spinal cord is CNS while the spinal nerves are PNS is true.

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  • 7. 

    Spinal nerves arise from 2 attachments of the spinal cord: the doral root and the ______root

    Correct Answer
    ventral
    Explanation
    The spinal nerves arise from two attachments of the spinal cord: the dorsal root and the ventral root. The dorsal root carries sensory information from the body to the spinal cord, while the ventral root carries motor information from the spinal cord to the body. Therefore, the correct answer is "ventral."

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  • 8. 

    Spinal cords give rise to ___pairs of Spinal Nerves.

    Correct Answer
    31
    Explanation
    The spinal cord gives rise to 31 pairs of spinal nerves. These nerves emerge from the spinal cord and branch out to various parts of the body, allowing for communication between the central nervous system and the rest of the body. Each pair of spinal nerves corresponds to a specific region of the body, with 8 pairs in the cervical region, 12 pairs in the thoracic region, 5 pairs in the lumbar region, 5 pairs in the sacral region, and 1 pair in the coccygeal region.

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  • 9. 

    Gray matter is the site of synaptic connections between neurons and neuronal integration.

    • True

    • False

    Correct Answer
    A. True
    Explanation
    Gray matter is indeed the site of synaptic connections between neurons and neuronal integration. Gray matter refers to the regions of the brain and spinal cord that primarily consist of cell bodies and dendrites of neurons. These areas are responsible for processing and integrating information, as well as forming connections between different parts of the nervous system. Therefore, the statement is true.

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  • 10. 

    3 pairs of bundles called columns or fasiculi

    • Posterior

    • Lateral

    • Anterior

    • Robotic

    Correct Answer(s)
    A. Posterior
    A. Lateral
    A. Anterior
    Explanation
    The given answer "posterior, lateral, anterior" refers to the three pairs of bundles called columns or fasiculi. These bundles are located in the body and are categorized based on their position. The posterior column is situated towards the back, the lateral column is positioned on the side, and the anterior column is located towards the front. These columns or fasiculi play a role in transmitting sensory information and motor signals within the body.

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  • 11. 

    What connects the left and right sides of gray matter?

    • Gray suture

    • Gray fissure

    • Gray commisure

    • 50 shades of gray

    Correct Answer
    A. Gray commisure
    Explanation
    The gray commisure is the correct answer because it is a structure that connects the left and right sides of gray matter in the brain and spinal cord. It allows for communication and coordination between the two hemispheres. The gray suture and gray fissure are not anatomical structures, and "50 shades of gray" is not a relevant option in this context.

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  • 12. 

    The first pair of nerves pass between the skull and C1 what do the rest pass through?

    • Foramen Magnum

    • Intervertebral Formina

    • Intermagnumen

    • Both A and C

    Correct Answer
    A. Intervertebral Formina
    Explanation
    The first pair of nerves, known as the cranial nerves, pass between the skull and the first cervical vertebra (C1). The rest of the nerves pass through the intervertebral foramina. The intervertebral foramina are small openings located between adjacent vertebrae that allow the spinal nerves to exit the spinal cord and extend to different parts of the body. Therefore, the correct answer is "Intervertebral Formina."

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  • 13. 

    Coccygeal vertebrae number is ______.

    Correct Answer
    1
    Explanation
    The coccygeal vertebrae number refers to the number of vertebrae in the coccyx, which is the tailbone. The coccyx typically consists of 3-5 fused vertebrae, but in some cases, it may consist of only 1 vertebra. Therefore, the correct answer is 1.

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  • 14. 

    The spinal cord is a long, cylindrical structure that extends from the ______ to the lower back.

    Correct Answer
    brainstem, Brainstem
    Explanation
    The spinal cord is a vital part of the central nervous system, responsible for transmitting sensory and motor information between the brain and the rest of the 1 body. It is protected by the vertebral column and extends from the brainstem, where it connects to the brain, to the lower back.  

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  • 15. 

    How far do spinal cords run?

    • C1-L2

    • Foramen magnum-C1

    • Foramen magnum-L1

    • Skull to tail bone

    Correct Answer
    A. Foramen magnum-L1
    Explanation
    The spinal cord runs from the foramen magnum, which is the opening at the base of the skull, down to the first lumbar vertebra (L1). This means that it extends from the top of the neck to the lower back. Therefore, the correct answer is Foramen magnum-L1.

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  • 16. 

    Name the 2 longitudinal grooves of the spinal cord.

    • Anterior median sulcus

    • Anterior median fissure

    • Posterior median sulcus

    • Posterior median fissure

    Correct Answer(s)
    A. Anterior median fissure
    A. Posterior median sulcus
    Explanation
    The correct answer is Anterior median fissure and Posterior median sulcus. The spinal cord has two longitudinal grooves, one in the anterior (front) portion called the anterior median fissure and one in the posterior (back) portion called the posterior median sulcus. These grooves divide the spinal cord into left and right halves and help to provide structural support and protection to the spinal cord.

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  • 17. 

    White matter contains

    • Lots of mylein

    • Bundles of axons called "tracts" fibres with a similar origin, destination, function

    • Lots of glial cells

    • Robots

    Correct Answer(s)
    A. Lots of mylein
    A. Bundles of axons called "tracts" fibres with a similar origin, destination, function
    A. Lots of glial cells
    Explanation
    White matter in the brain and spinal cord consists of bundles of axons called "tracts" that transmit signals between different regions of the nervous system. These axons are coated with a fatty substance called myelin, which helps to insulate and speed up the transmission of electrical signals. Additionally, white matter contains glial cells, which provide support and nourishment to the neurons. Therefore, the correct answer is that white matter contains lots of myelin, bundles of axons called "tracts" with similar origin, destination, function, and lots of glial cells.

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  • 18. 

    Gray matter of spinal cord contains....

    • Nerve cell bodies

    • Dendrites

    • Proximal part of axon

    • Glial cells

    Correct Answer(s)
    A. Nerve cell bodies
    A. Dendrites
    A. Proximal part of axon
    A. Glial cells
    Explanation
    The gray matter of the spinal cord contains nerve cell bodies, dendrites, the proximal part of the axon, and glial cells. Nerve cell bodies are the main component of gray matter and are responsible for processing and transmitting signals. Dendrites receive signals from other neurons and transmit them to the cell body. The proximal part of the axon is also found in the gray matter and is responsible for transmitting signals away from the cell body. Glial cells provide support and protection to the neurons in the spinal cord.

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  • Current Version
  • Apr 20, 2025
    Quiz Edited by
    ProProfs Editorial Team
  • Nov 15, 2012
    Quiz Created by
    Reinershine
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