Clinically Relevant Anatomy of the Spinal Nerves

Question 1 of 25

1

Overview of the spinal nerve. (anterior = top of picture)

Drag an answer into the correct orange point.

Anterior root

Posterior root

Spinous process

Spinal ganglion

Anterior ramus

Posterior ramus

White and Gray Rami Communicantes

Sympathetic ganglion

Spinal nerve

Explanation

Question 2 of 25

1

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The first dorsal webspace of the foot is innervated by the ( deep fibular nerve, superficial fibular nerve ) and exists as the ( L5, L4, S1, S2 ) dermatome

Explanation

Question 3 of 25

1

The dermatome in which the heel is situated is the ... dermatome.

Select one of the following:

L5
S1
S2
S3

Explanation

Question 4 of 25

1

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The postcentral gyrus is also known as the ( primary somatosensory cortex, primary motor cortex )
The precentral gyrus is also known as the ( primary motor cortex, primary somatosensory cortex )

Explanation

Question 5 of 25

1

The main sensory pathway of the body occurs via which white matter column of the spinal cord?

Select one of the following:

The dorsal column
The ventral column
The right lateral column
The left lateral column

Explanation

Question 6 of 25

1

Click on each orange point and write the correct answer.

Using the Foerster dermatome map below, label the dermatomes of the arm.

Explanation

Question 7 of 25

1

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The Musculocutaneous nerve supplies the ( Biceps Brachii, Triceps Brachii ) and originates from the ( C5 and C6, C4 and C5, C6 and C7, C7 and C8 ) spinal nerves.

Explanation

Question 8 of 25

1

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Posteriorly, the neck and scalp skin is mainly supplied by the ( posterior, anterior ) rami of spinal nerves ( C2, C1, C3 )-C8

Explanation

Question 9 of 25

1

Label the named cutaneous nerve innervation of the neck.

Drag an answer into the correct orange point.

Lesser Occipital Nerve

Great Auricular Nerve

Transverse Cervical Nerve

Supraclavicular Nerves

Explanation

Question 10 of 25

1

On the previous diagram, the point at which the sensory nerves of the cervical plexus converge is called...

Select one of the following:

The Nerve Point of the Neck
The Sensory Point of the Neck
The Cervical Point of the Neck

Explanation

Question 11 of 25

1

Pain from the myocardium (e.g. during heart attack) typically refers to which dermatomes of the arm?

Select one of the following:

C8 & T1
T1 & T2
C5 & C6
T2 & T3

Explanation

Question 12 of 25

1

Match the following Myotomes to their test actions and relevant muscles:
C5: Action = ❌ Muscle = ❌
C6: Action = ❌ Muscle = ❌
C7: Action = ❌ Muscle = ❌
C8: Action = ❌ Muscle = ❌
T1: Action = ❌ Muscle = ❌

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Shoulder Abduction

Elbow Flexion

Elbow Extension

Finger Flexion

Finger Abduction

Dorsal Interossei

Flexor Digitorum Superficialis

Triceps Brachii

Biceps Brachii

Deltoid

Explanation

Question 13 of 25

1

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Clinical Testing of Spinal Reflexes:
Biceps Reflex tests ( C5 & C6, C6 & C7, C4 & C5 ) spinal nerves
Triceps Reflex tests ( C7, C6, C8 ) spinal nerve
Knee Jerk Reflex tests ( L3, L2, L1 ) spinal nerve
Ankle Jerk reflex tests ( S1, S2, S3 ) spinal nerve

Explanation

Question 14 of 25

1

The muscles of mastication (Masseter, etc) are mainly innervated by which cranial nerve?

Select one of the following:

CNV3
CNVII
CNIX

Explanation

Question 15 of 25

1

The Diaphragm is innervated by the phrenic nerve, which arises from which 3 spinal nerves?

Select one or more of the following:

C1
C2
C3
C4
C5

Explanation

Question 16 of 25

1

Taste:
Which cranial nerve allows taste on the anterior 2/3 of the tongue
❌
Which cranial nerve allows taste on the posterior 1/3 of the tongue
❌
Which cranial nerve allows taste at the epiglottis?
❌

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Facial Nerve (CNVII)

Glossopharyngeal Nerve (CNIX)

Vagus Nerve (CNX)

Explanation

Question 17 of 25

1

Erector Spinae and Transversospinalis muscle groups are supplied by the ... rami of spinal nerves

Select one of the following:

Posterior
Anterior

Explanation

Question 18 of 25

1

Axillary Nerve arises from ...

Select one or more of the following:

C5
C6
C7
C8
T1

Explanation

Question 19 of 25

1

Musculocutaneous Nerve arises from ...

Select one or more of the following:

C5
C6
C7
C8
T1

Explanation

Question 20 of 25

1

Median Nerve arises from ...

Select one or more of the following:

C5
C6
C7
C8
T1

Explanation

Question 21 of 25

1

Radial Nerve arises from

Select one or more of the following:

C5
C6
C7
C8
T1

Explanation

Question 22 of 25

1

Ulnar Nerve arises from ...

Select one or more of the following:

C5
C6
C7
C8
T1

Explanation

Question 23 of 25

1

Fill the blank space to complete the text.

All Interossei muscles are supplied by the nerve

Explanation

Question 24 of 25

1

Sciatic Nerve arises from ...

Select one or more of the following:

L2
L3
L4
L5
S1
S2
S3
S4

Explanation

Question 25 of 25

1

	Created by Matthew Coulson about 6 years ago

Clinically Relevant Anatomy of the Spinal Nerves given by Luke Reid on 28/08/2018

Clinically Relevant Anatomy of the Spinal Nerves

Question 1 of 25

Overview of the spinal nerve. (anterior = top of picture)

Drag an answer into the correct orange point.

Explanation

Question 2 of 25

Select from the dropdown lists to complete the text.

The first dorsal webspace of the foot is innervated by the deep fibular nerve superficial fibular nerve( deep fibular nerve, superficial fibular nerve ) and exists as the L5 L4 S1 S2( L5, L4, S1, S2 ) dermatome

Explanation

Question 3 of 25

The dermatome in which the heel is situated is the ... dermatome.

Select one of the following:

Explanation

Question 4 of 25

Select from the dropdown lists to complete the text.

The postcentral gyrus is also known as the primary somatosensory cortex primary motor cortex( primary somatosensory cortex, primary motor cortex ) The precentral gyrus is also known as the primary motor cortex primary somatosensory cortex( primary motor cortex, primary somatosensory cortex )

Explanation

Question 5 of 25

The main sensory pathway of the body occurs via which white matter column of the spinal cord?

Select one of the following:

Explanation

Question 6 of 25

Click on each orange point and write the correct answer.

Using the Foerster dermatome map below, label the dermatomes of the arm.

Explanation

Question 7 of 25

Select from the dropdown lists to complete the text.

The Musculocutaneous nerve supplies the Biceps Brachii Triceps Brachii( Biceps Brachii, Triceps Brachii ) and originates from the C5 and C6 C4 and C5 C6 and C7 C7 and C8( C5 and C6, C4 and C5, C6 and C7, C7 and C8 ) spinal nerves.

Explanation

Question 8 of 25

Select from the dropdown lists to complete the text.

Posteriorly, the neck and scalp skin is mainly supplied by the posterior anterior( posterior, anterior ) rami of spinal nerves C2 C1 C3( C2, C1, C3 )-C8

Explanation

Question 9 of 25

Label the named cutaneous nerve innervation of the neck.

Drag an answer into the correct orange point.

Explanation

Question 10 of 25

On the previous diagram, the point at which the sensory nerves of the cervical plexus converge is called...

Select one of the following:

Explanation

Question 11 of 25

Pain from the myocardium (e.g. during heart attack) typically refers to which dermatomes of the arm?

Select one of the following:

Explanation

Question 12 of 25

Match the following Myotomes to their test actions and relevant muscles: C5: Action = ❌ Muscle = ❌ C6: Action = ❌ Muscle = ❌ C7: Action = ❌ Muscle = ❌ C8: Action = ❌ Muscle = ❌ T1: Action = ❌ Muscle = ❌

Drag and drop to complete the text.

Explanation

Question 13 of 25

Select from the dropdown lists to complete the text.

Clinical Testing of Spinal Reflexes: Biceps Reflex tests C5 & C6 C6 & C7 C4 & C5( C5 & C6, C6 & C7, C4 & C5 ) spinal nerves Triceps Reflex tests C7 C6 C8( C7, C6, C8 ) spinal nerve Knee Jerk Reflex tests L3 L2 L1( L3, L2, L1 ) spinal nerve Ankle Jerk reflex tests S1 S2 S3( S1, S2, S3 ) spinal nerve

Explanation

Question 14 of 25

The muscles of mastication (Masseter, etc) are mainly innervated by which cranial nerve?

Select one of the following:

Explanation

Question 15 of 25

The Diaphragm is innervated by the phrenic nerve, which arises from which 3 spinal nerves?

Select one or more of the following:

Explanation

Question 16 of 25

Taste: Which cranial nerve allows taste on the anterior 2/3 of the tongue ❌ Which cranial nerve allows taste on the posterior 1/3 of the tongue ❌ Which cranial nerve allows taste at the epiglottis? ❌

Drag and drop to complete the text.

Explanation

Question 17 of 25

Erector Spinae and Transversospinalis muscle groups are supplied by the ... rami of spinal nerves

Select one of the following:

Explanation

Question 18 of 25

Axillary Nerve arises from ...

Select one or more of the following:

Explanation

Question 19 of 25

Musculocutaneous Nerve arises from ...

Select one or more of the following:

Explanation

Question 20 of 25

Median Nerve arises from ...

The first dorsal webspace of the foot is innervated by the ( deep fibular nerve, superficial fibular nerve ) and exists as the ( L5, L4, S1, S2 ) dermatome

The postcentral gyrus is also known as the ( primary somatosensory cortex, primary motor cortex )
The precentral gyrus is also known as the ( primary motor cortex, primary somatosensory cortex )

The Musculocutaneous nerve supplies the ( Biceps Brachii, Triceps Brachii ) and originates from the ( C5 and C6, C4 and C5, C6 and C7, C7 and C8 ) spinal nerves.

Posteriorly, the neck and scalp skin is mainly supplied by the ( posterior, anterior ) rami of spinal nerves ( C2, C1, C3 )-C8

Match the following Myotomes to their test actions and relevant muscles:
C5: Action = ❌ Muscle = ❌
C6: Action = ❌ Muscle = ❌
C7: Action = ❌ Muscle = ❌
C8: Action = ❌ Muscle = ❌
T1: Action = ❌ Muscle = ❌

Clinical Testing of Spinal Reflexes:
Biceps Reflex tests ( C5 & C6, C6 & C7, C4 & C5 ) spinal nerves
Triceps Reflex tests ( C7, C6, C8 ) spinal nerve
Knee Jerk Reflex tests ( L3, L2, L1 ) spinal nerve
Ankle Jerk reflex tests ( S1, S2, S3 ) spinal nerve

Taste:
Which cranial nerve allows taste on the anterior 2/3 of the tongue
❌
Which cranial nerve allows taste on the posterior 1/3 of the tongue
❌
Which cranial nerve allows taste at the epiglottis?
❌