50 Question Anatomy 214 Cranial Nerves Test

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Cranial Nerve 7 is called ______.

50 Question Anatomy 214 Cranial Nerves Test - Quiz

About This Quiz

WAIT: when I ask you to name a cranial nerve, just write the name, do not write 'nerve' after or you'll get it wrong!
Covers structural relationships of cranial nerves for the 2012 systemic human anatomy class at McGill University.
Created by Mack Michell-Robinson in 2012 for McGill University, Dept. Of Anatomy and Cell Biology

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2.

Cranial Nerve 2 is called ______.

Explanation
Cranial Nerve 2 is called the Optic nerve. This nerve is responsible for transmitting visual information from the retina to the brain. It plays a crucial role in vision, allowing us to perceive and interpret visual stimuli.

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3.

Cranial Nerve 10 is called ______.

Explanation
Cranial Nerve 10 is called the Vagus nerve. The vagus nerve is the longest cranial nerve and is responsible for various functions in the body, including regulating the heart rate, controlling digestion, and influencing speech and swallowing. It is an essential part of the parasympathetic nervous system, which helps to balance the body's functions and promote relaxation.

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4.

Cranial Nerve 1 is called ______.

Explanation
Cranial Nerve 1 is called the Olfactory nerve. This nerve is responsible for our sense of smell and carries sensory information from the nose to the brain. The term "olfactory" is derived from the Latin word "olfactus," which means "to smell." Therefore, the correct answer for this question is Olfactory.

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5.

Cranial Nerve 4 is called ______.

Explanation
Cranial Nerve 4 is called the Trochlear nerve. The trochlear nerve is responsible for controlling the superior oblique muscle of the eye, which helps with downward and inward eye movement. It is the smallest cranial nerve and is unique because it is the only nerve that emerges from the posterior side of the brainstem.

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6.

Cranial Nerve 5 is called ______.

Explanation
Cranial Nerve 5 is called the Trigeminal nerve. The trigeminal nerve is responsible for providing sensory information from the face, as well as controlling the muscles involved in chewing. It is named trigeminal because it has three branches: the ophthalmic branch, the maxillary branch, and the mandibular branch. These branches innervate different areas of the face and are responsible for transmitting sensory information to the brain.

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7.

Cranial Nerve 12 is called ______.

Explanation
Cranial Nerve 12 is referred to as the hypoglossal nerve. This nerve is responsible for controlling the movement of the tongue, including its muscles and coordination. It plays a crucial role in speech, swallowing, and other functions related to the tongue's movement and position.

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8.

Cranial Nerve 6 is called ______.

Explanation
Cranial Nerve 6 is called Abducens. The term "abducens" refers to the ability of this nerve to control the movement of the eye outward, away from the midline of the body. It is responsible for the lateral movement of the eye, allowing it to look towards the side. This nerve originates in the brainstem and innervates the lateral rectus muscle of the eye. Dysfunction of the Abducens nerve can lead to a condition called abducens nerve palsy, which can result in the inability to move the affected eye laterally.

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9.

Cranial Nerve 8 is called ______.

Explanation
The correct answer is "Vestibulocochlear". Cranial Nerve 8 is also known as the Vestibulocochlear nerve, which is responsible for transmitting sound and balance information from the inner ear to the brain. The term "auditory" is correct as well, as it refers to the nerve's role in hearing. However, "auditory vestibular" is not a commonly used term to describe Cranial Nerve 8, making it an incorrect option.

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10.

CN 6 carries which types of fibers (check all that apply).
- Special sensory
- Motor
- Sensory
- Sympathetic
- Parasympathetic
Correct Answer

A. Motor

Explanation

CN 6, also known as the abducens nerve, carries motor fibers. Motor fibers are responsible for controlling the movement of muscles. Therefore, CN 6 carries motor fibers that control the movement of the lateral rectus muscle, which is responsible for outward eye movement.

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11.

Cranial Nerve 3 is called ______.

Correct Answer
Oculomotor

Explanation
Cranial Nerve 3 is called the Oculomotor nerve. This nerve is responsible for controlling the movement of the eye muscles, including the muscles that control eye movement in all directions except for up and down. It also controls the constriction of the pupil and the accommodation of the lens for near vision. The term "oculomotor" is derived from the Latin words "oculus" meaning "eye" and "motor" meaning "movement," indicating its role in eye movement control.

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12.

CN 4 carries which types of fibers (check all that apply).
- Motor
- Sensory
- Sympathetic
- Parasympathetic
- Special sensory
Correct Answer

A. Motor

Explanation

CN 4 carries motor fibers.

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13.

CN 11 carries which types of fibers (check all that apply).
- Special sensory
- Motor
- Sensory
- Sympathetic
- Parasympathetic
Correct Answer

A. Motor

Explanation

CN 11, also known as the accessory nerve, carries motor fibers. The accessory nerve is responsible for controlling the movement of certain muscles in the head and neck, including the trapezius and sternocleidomastoid muscles. It does not carry sensory, sympathetic, or parasympathetic fibers.

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14.

CN 12 carries which types of fibers (check all that apply).
- Special sensory
- Motor
- Sensory
- Sympathetic
- Parasympathetic
Correct Answer

A. Motor

Explanation

CN 12, also known as the hypoglossal nerve, carries motor fibers. This means that it primarily controls the movement of the tongue. It does not carry any sensory, sympathetic, or parasympathetic fibers.

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15.

Where does CN2 exit the skull?
- Optic Canal
- Foramen Rotundum
- Sup. Orbital Fissure
- Foramen Ovale
- Stylomastoid Foramen
- Foramen Lacerum
- Internal Auditory Meatus
- External Auditory Meatus
- Jugular Foramen
- Foramen Magnum
Correct Answer

A. Optic Canal

Explanation

The correct answer is Optic Canal. The optic canal is a small bony canal located in the sphenoid bone of the skull. It is situated in the middle cranial fossa and allows for the passage of the optic nerve (CN2) from the orbit to the cranial cavity. The optic canal is specifically designed to protect and support the optic nerve as it exits the skull and enters the eye socket.

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16.

Where does CN3 exit the skull?
- Optic Canal
- Foramen Rotundum
- Sup. Orbital Fissure
- Foramen Ovale
- Stylomastoid Foramen
- Foramen Lacerum
- Internal Auditory Meatus
- External Auditory Meatus
- Jugular Foramen
- Foramen Magnum
Correct Answer

A. Sup. Orbital Fissure

Explanation

CN3, also known as the oculomotor nerve, exits the skull through the Superior Orbital Fissure. The Superior Orbital Fissure is a small opening located in the sphenoid bone, which is a bone of the skull. This fissure allows the oculomotor nerve, along with other structures such as the ophthalmic nerve, to pass from the inside of the skull to the orbit (eye socket).

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17.

Where does CN6 exit the skull?
- Optic Canal
- Foramen Rotundum
- Sup. Orbital Fissure
- Foramen Ovale
- Stylomastoid Foramen
- Foramen Lacerum
- Internal Auditory Meatus
- External Auditory Meatus
- Jugular Foramen
- Foramen Magnum
Correct Answer

A. Sup. Orbital Fissure

Explanation

The correct answer is Sup. Orbital Fissure. CN6, also known as the abducens nerve, exits the skull through the superior orbital fissure. The superior orbital fissure is a narrow opening located between the greater and lesser wings of the sphenoid bone. It allows for the passage of several structures, including the abducens nerve, as it travels from the brain to innervate the lateral rectus muscle of the eye.

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18.

Chorda Tympani is part of CN7.
- True
- False
Correct Answer

A. True

Explanation

The Chorda Tympani is a branch of the facial nerve (CN7) that supplies taste sensation to the anterior two-thirds of the tongue. Therefore, it is accurate to say that the Chorda Tympani is part of CN7.

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19.

The nerve supply for the lateral pterygoid muscle is the V3 Mandibular branch called the lateral pterygoid nerve.
- True
- False
Correct Answer

A. True

Explanation

The lateral pterygoid muscle is innervated by the V3 mandibular branch, specifically the lateral pterygoid nerve. This nerve supplies the necessary motor function to the muscle, allowing it to perform its actions, such as opening and closing the jaw and assisting in chewing. Therefore, the statement is true.

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20.

Where does CN 10 exit the skull?
- Optic Canal
- Foramen Rotundum
- Sup. Orbital Fissure
- Foramen Ovale
- Stylomastoid Foramen
- Foramen Lacerum
- Internal Auditory Meatus
- External Auditory Meatus
- Jugular Foramen
- Foramen Magnum
- None of the Above
Correct Answer

A. Jugular Foramen

Explanation

The correct answer is Jugular Foramen. The cranial nerve 10, also known as the vagus nerve, exits the skull through the jugular foramen. This opening is located in the base of the skull, at the junction between the temporal and occipital bones. The vagus nerve is responsible for various functions, including controlling the muscles of the throat and voice box, regulating heart rate and blood pressure, and contributing to the digestive system.

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21.

Where does CN5 V1 exit the skull?
- Optic Canal
- Foramen Rotundum
- Sup. Orbital Fissure
- Foramen Ovale
- Stylomastoid Foramen
- Foramen Lacerum
- Internal Auditory Meatus
- External Auditory Meatus
- Jugular Foramen
- Foramen Magnum
Correct Answer

A. Sup. Orbital Fissure

Explanation

The correct answer is Superior Orbital Fissure.

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22.

The mental nerve exits the infraorbital foramen.
- True
- False
Correct Answer

A. False

Explanation

Exits the mental foramen

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23.

Where does CN 9 exit the skull?
- Optic Canal
- Foramen Rotundum
- Sup. Orbital Fissure
- Foramen Ovale
- Stylomastoid Foramen
- Foramen Lacerum
- Internal Auditory Meatus
- External Auditory Meatus
- Jugular Foramen
- Foramen Magnum
- None of the Above
Correct Answer

A. Jugular Foramen

Explanation

The glossopharyngeal nerve (CN 9) exits the skull through the Jugular Foramen.

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24.

Where does CN1 exit the skull?
- Optic Canal
- Foramen Rotundum
- Sup. Orbital Fissure
- Foramen Ovale
- Stylomastoid Foramen
- Foramen Lacerum
- Internal Auditory Meatus
- External Auditory Meatus
- Jugular Foramen
- Foramen Magnum
- None of the above
Correct Answer

A. None of the above

Explanation

The fibers of the olfactory nerve enter the nasal mucosa via the cribriform plate of ethmoid

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25.

Where does CN5 V3 exit the skull?
- Optic Canal
- Foramen Rotundum
- Sup. Orbital Fissure
- Foramen Ovale
- Stylomastoid Foramen
- Foramen Lacerum
- Internal Auditory Meatus
- External Auditory Meatus
- Jugular Foramen
- Foramen Magnum
Correct Answer

A. Foramen Ovale

Explanation

CN5 V3, also known as the mandibular branch of the trigeminal nerve, exits the skull through the Foramen Ovale. This foramen is located in the greater wing of the sphenoid bone, which is a part of the skull. The mandibular branch of the trigeminal nerve carries sensory information from the lower face, including the jaw, lower teeth, and gums. It also innervates the muscles involved in chewing. Therefore, the Foramen Ovale is the correct exit point for CN5 V3.

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26.

The lingual nerve is a branch of V3 mandibular.
- True
- False
Correct Answer

A. True

Explanation

The lingual nerve is indeed a branch of V3 mandibular. V3 mandibular is one of the three divisions of the trigeminal nerve, which is responsible for providing sensory innervation to the face and motor innervation to the muscles of mastication. The lingual nerve specifically carries sensory information from the anterior two-thirds of the tongue, as well as the floor of the mouth. Therefore, the statement that the lingual nerve is a branch of V3 mandibular is correct.

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27.

Where does CN5 V2 exit the skull?
- Optic Canal
- Foramen Rotundum
- Sup. Orbital Fissure
- Foramen Ovale
- Stylomastoid Foramen
- Foramen Lacerum
- Internal Auditory Meatus
- External Auditory Meatus
- Jugular Foramen
- Foramen Magnum
Correct Answer

A. Foramen Rotundum

Explanation

CN5 V2 exits the skull through the Foramen Rotundum.

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28.

Where does CN 11 exit the skull?
- Optic Canal
- Foramen Rotundum
- Sup. Orbital Fissure
- Foramen Ovale
- Stylomastoid Foramen
- Foramen Lacerum
- Internal Auditory Meatus
- External Auditory Meatus
- Jugular Foramen
- Foramen Magnum
- None of the Above
Correct Answer

A. Jugular Foramen

Explanation

CN 11, also known as the accessory nerve, exits the skull through the Jugular Foramen. This is a large opening located at the base of the skull, near the junction of the occipital and temporal bones. The Jugular Foramen is an important passageway for several structures, including the glossopharyngeal nerve (CN IX), vagus nerve (CN X), and the internal jugular vein.

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29.

CN 5 V1 carries which types of fibers (check all that apply).
- Motor
- Sensory
- Sympathetic
- Parasympathetic
- Special sensory
Correct Answer

A. Sensory

Explanation

CN 5 V1 carries sensory fibers. The trigeminal nerve (CN 5) has three main branches, and the V1 branch specifically carries sensory information from the ophthalmic region of the face. This includes sensations such as touch, pain, and temperature from the forehead, upper eyelid, and the front part of the scalp. The other branches of CN 5, V2 and V3, carry sensory fibers from different regions of the face and also contain motor fibers for muscle control.

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30.

CN 5 V2 carries which types of fibers (check all that apply).
- Special sensory
- Motor
- Sensory
- Sympathetic
- Parasympathetic
Correct Answer

A. Sensory

Explanation

CN 5 V2 carries sensory fibers.

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31.

Where does CN 12 exit the skull?
- Optic Canal
- Foramen Rotundum
- Sup. Orbital Fissure
- Foramen Ovale
- Stylomastoid Foramen
- Foramen Lacerum
- Internal Auditory Meatus
- External Auditory Meatus
- Jugular Foramen
- Foramen Magnum
- None of the above
Correct Answer

A. None of the above

Explanation

Hypoglossal Canal

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32.

CN1 has what type of fibers (check all that apply).
- Sensory
- Motor
- Sympathetic
- Parasympathetic
- Special Sensory
Correct Answer

A. Special Sensory

Explanation

CN1 refers to Cranial Nerve 1, also known as the olfactory nerve. The olfactory nerve is responsible for the sense of smell. Special sensory fibers are a type of nerve fibers that are involved in the special senses, such as smell, taste, vision, hearing, and balance. Therefore, CN1 has special sensory fibers, which is why the correct answer is "Special Sensory".

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33.

Cranial Nerve 11 is called ______.

Correct Answer
Spinal Accessory

Explanation
Cranial Nerve 11 is called the Spinal Accessory. This nerve is responsible for controlling the movement of certain muscles in the head and neck, including the trapezius and sternocleidomastoid muscles. It is called the Spinal Accessory because it originates from the spinal cord and travels up to the brainstem, where it joins with other cranial nerves.

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34.

CN2 has what type of fibers (check all that apply).
- Sensory
- Motor
- Sympathetic
- Parasympathetic
- Special Sensory
Correct Answer

A. Special Sensory

Explanation

CN2, also known as the optic nerve, is responsible for transmitting visual information from the retina to the brain. It is composed of sensory fibers that carry visual signals. Therefore, the correct answer is "Sensory" as it accurately describes the type of fibers found in CN2.

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35.

CN 5 carries which types of fibers (check all that apply).
- Motor
- Sensory
- Sympathetic
- Parasympathetic
- Special sensory
Correct Answer(s)

A. Motor
A. Sensory

Explanation

CN 5 carries both motor and sensory fibers. Motor fibers are responsible for controlling the muscles of mastication and other muscles involved in chewing. Sensory fibers transmit sensory information from the face, including touch, pain, and temperature sensations, to the brain.

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36.

CN 7 enters (1st answer), and exits (2nd answer) which foramen?
- Optic Canal
- Foramen Rotundum
- Sup. Orbital Fissure
- Foramen Ovale
- Stylomastoid Foramen
- Foramen Lacerum
- Internal Auditory Meatus
- External Auditory Meatus
- Jugular Foramen
- Foramen Magnum
Correct Answer(s)

A. Stylomastoid Foramen
A. Internal Auditory Meatus

Explanation

CN7 enters the internal auditory meatus and exits the stylomastoid foramen

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37.

CN 5 V3 carries which types of fibers (check all that apply).
- Special sensory
- Motor
- Sensory
- Sympathetic
- Parasympathetic
Correct Answer(s)

A. Motor
A. Sensory

Explanation

CN 5 V3 carries both motor and sensory fibers. Motor fibers are responsible for controlling the muscles of mastication, while sensory fibers transmit sensations from the face, scalp, and mucous membranes of the mouth and nose. Therefore, the correct answer is motor and sensory.

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38.

CN 8 carries which types of fibers (check all that apply).
- Special sensory
- Motor
- Sensory
- Sympathetic
- Parasympathetic
Correct Answer

A. Special sensory

Explanation

CN 8, also known as the vestibulocochlear nerve, carries special sensory fibers. These fibers are responsible for transmitting information related to hearing and balance from the inner ear to the brain. The special sensory fibers in CN 8 allow us to perceive sound and maintain our sense of equilibrium.

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39.

CN3 has what type of fibers (check all that apply).
- Sensory
- Motor
- Sympathetic
- Parasympathetic
- Special Sensory
Correct Answer(s)

A. Motor
A. Parasympathetic

Explanation

CN3, also known as the oculomotor nerve, contains motor fibers responsible for controlling the movement of certain eye muscles. These muscles allow for functions such as pupil constriction and eye movement. Additionally, CN3 also contains parasympathetic fibers that innervate the ciliary muscles of the eye, which control the shape of the lens and aid in focusing on nearby objects. Therefore, the correct answer is Motor and Parasympathetic.

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40.

CN 10 carries which types of fibers (check all that apply).
- Special sensory
- Motor
- Sensory
- Sympathetic
- Parasympathetic
Correct Answer(s)

A. Motor
A. Sensory
A. Parasympathetic

Explanation

CN 10, also known as the Vagus nerve, carries motor, sensory, and parasympathetic fibers. Motor fibers control the muscles of the soft palate, pharynx, and larynx, allowing for swallowing and speaking. Sensory fibers transmit information from the throat, larynx, and other organs to the brain, providing sensations such as taste and touch. Parasympathetic fibers regulate the functions of various organs, including the heart, lungs, and digestive system, promoting rest and relaxation. Therefore, motor, sensory, and parasympathetic fibers are all carried by CN 10.

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41.

Cranial Nerve 9 is called ______.

Correct Answer(s)
Glossopharyngeal, glossopharyngeal

Explanation
The glossopharyngeal nerve is the ninth cranial nerve (CN IX). It is a mixed nerve that carries both sensory and motor information. It is responsible for taste and sensation from the posterior third of the tongue, as well as controlling some muscles involved in swallowing and speech.

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42.

CN 9 carries which types of fibers (check all that apply).
- Special sensory
- Motor
- Sensory
- Sympathetic
- Parasympathetic
Correct Answer(s)

A. Special sensory
A. Motor
A. Sensory
A. Parasympathetic

Explanation

CN 9 carries special sensory, motor, sensory, and parasympathetic fibers. The glossopharyngeal nerve (CN 9) is responsible for carrying special sensory fibers that provide taste sensation from the posterior one-third of the tongue, motor fibers that innervate the stylopharyngeus muscle involved in swallowing and speech, sensory fibers that transmit general sensation from the oropharynx and posterior tongue, and parasympathetic fibers that control salivation from the parotid gland.

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43.

Where does CN 8 exit the skull?
- Optic Canal
- Foramen Rotundum
- Sup. Orbital Fissure
- Foramen Ovale
- Stylomastoid Foramen
- Foramen Lacerum
- Internal Auditory Meatus
- External Auditory Meatus
- Jugular Foramen
- Foramen Magnum
- None of the Above
Correct Answer

A. None of the Above

Explanation

CN8 does not exit the skull, it innervates the cochlea and vestibular apparatus inside the skull.

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44.

CN 7 carries which types of fibers (check all that apply).
- Special sensory
- Motor
- Sensory
- Sympathetic
- Parasympathetic
Correct Answer(s)

A. Special sensory
A. Motor
A. Parasympathetic

Explanation

CN 7, also known as the facial nerve, carries special sensory fibers, motor fibers, and parasympathetic fibers. Special sensory fibers are responsible for taste sensation from the anterior two-thirds of the tongue. Motor fibers innervate the muscles of facial expression, while parasympathetic fibers control the lacrimal gland, submandibular gland, and sublingual gland, as well as the glands in the nasal and palatine cavities. Sensory fibers, sympathetic fibers, and other types of fibers are not carried by CN 7.

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