Spinal Cord Anatomy Quiz
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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.
Questions and Answers
- 1.
How far do spinal cords run?
- A.
C1-L2
- B.
Foramen magnum-C1
- C.
Foramen magnum-L1
- D.
Skull to tail bone
Correct Answer
C. Foramen magnum-L1Explanation
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.Rate this question:
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- 2.
The spinal cord is CNS while the Spinal nerves are PNS.
- A.
True
- B.
False
Correct Answer
A. TrueExplanation
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.Rate this question:
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- 3.
Spinal cords give rise to ___pairs of Spinal Nerves.
Correct Answer
31Explanation
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.Rate this question:
- 4.
Gray matter of spinal cord contains....
- A.
Nerve cell bodies
- B.
Dendrites
- C.
Proximal part of axon
- D.
Glial cells
Correct Answer(s)
A. Nerve cell bodies
B. Dendrites
C. Proximal part of axon
D. Glial cellsExplanation
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.Rate this question:
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- 5.
Gray matter is the site of synaptic connections between neurons and neuronal integration.
- A.
True
- B.
False
Correct Answer
A. TrueExplanation
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.Rate this question:
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- 6.
What connects the left and right sides of gray matter?
- A.
Gray suture
- B.
Gray fissure
- C.
Gray commisure
- D.
50 shades of gray
Correct Answer
C. Gray commisureExplanation
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.Rate this question:
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- 7.
White matter contains
- A.
Lots of mylein
- B.
Bundles of axons called "tracts" fibres with a similar origin, destination, function
- C.
Lots of glial cells
- D.
Robots
Correct Answer(s)
A. Lots of mylein
B. Bundles of axons called "tracts" fibres with a similar origin, destination, function
C. Lots of glial cellsExplanation
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.Rate this question:
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- 8.
3 pairs of bundles called columns or fasiculi
- A.
Posterior
- B.
Lateral
- C.
Anterior
- D.
Robotic
Correct Answer(s)
A. Posterior
B. Lateral
C. AnteriorExplanation
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.Rate this question:
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- 9.
There are ____ pairs of spinal nerves.
Correct Answer(s)
31Explanation
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.Rate this question:
- 10.
Coccygeal vertebrae number is ______.
Correct Answer(s)
1Explanation
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.Rate this question:
- 11.
Spinal nerves arise from 2 attachments of the spinal cord: the doral root and the ______root
Correct Answer(s)
ventralExplanation
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."Rate this question:
- 12.
Complex interlacing networks.
- A.
Plexuses
- B.
Lexuses
- C.
Sexuses
- D.
Flexuses
Correct Answer
A. PlexusesExplanation
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.Rate this question:
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- 13.
The first pair of nerves pass between the skull and C1 what do the rest pass through?
- A.
Foramen Magnum
- B.
Intervertebral Formina
- C.
Intermagnumen
- D.
Both A and C
Correct Answer
B. Intervertebral ForminaExplanation
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."Rate this question:
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- 14.
Name the 2 longitudinal grooves of the spinal cord.
- A.
Anterior median sulcus
- B.
Anterior median fissure
- C.
Posterior median sulcus
- D.
Posterior median fissure
Correct Answer(s)
B. Anterior median fissure
C. Posterior median sulcusExplanation
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.Rate this question:
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- 15.
Gray matter of the spinal cord is shaped like a
- A.
Caterpillar
- B.
Cacoon
- C.
Butterfly
- D.
Pear
Correct Answer
C. ButterflyExplanation
The gray matter of the spinal cord is shaped like a butterfly. This is because when you look at a cross-section of the spinal cord, the gray matter appears as two butterfly-shaped regions connected by a narrow strip of tissue. The wings of the butterfly represent the dorsal and ventral horns, which contain cell bodies of neurons involved in sensory and motor functions. The narrow strip in the middle is known as the central canal. Therefore, the shape of the gray matter resembles that of a butterfly.Rate this question:
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- 16.
Cervical nerves number is _______
Correct Answer
8Explanation
The cervical nerves number is 8. This means that there are 8 pairs of cervical nerves in the human body. The cervical nerves emerge from the spinal cord in the neck region and are responsible for transmitting sensory and motor signals to and from the upper body, including the neck, shoulders, arms, and hands. Each cervical nerve corresponds to a specific area of the body and plays a crucial role in maintaining proper functioning and sensation in these areas.Rate this question:
- 17.
Thoracic bones number is ____
Correct Answer
12, twelve, TwelveExplanation
The correct answer is 12, twelve, Twelve. This suggests that the number of thoracic bones is 12.Rate this question:
- 18.
The number of lumbar bones is ______
Correct Answer
5, five, FiveExplanation
The number of lumbar bones is 5.Rate this question:
Quiz Review Timeline +
Our quizzes are rigorously reviewed, monitored and continuously updated by our expert board to maintain accuracy, relevance, and timeliness.
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Current Version
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Aug 18, 2023Quiz Edited by
ProProfs Editorial Team -
Nov 15, 2012Quiz Created by
Reinershine
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