Anatomy Neck Regions Quiz

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Questions and Answers

Which nerve passes through the muscular triangle of the neck?

Glossopharyngeal nerve

Hypoglossal nerve (correct)

Vagus nerve

Spinal accessory nerve

Which of the following is NOT a structure found in the carotid triangle?

Common carotid artery and its branches

Internal jugular vein and its tributaries

Vagus nerve

Submandibular gland (correct)

Which muscle forms the floor of the submandibular triangle?

Sternocleidomastoid

Sternohyoid

Mylohyoid (correct)

Omohyoid

Which structure is found in the submental triangle?

Submental lymph nodes Signup and view all the answers

Which nerve originates from the posterior aspect of the medulla oblongata?

Hypoglossal nerve Signup and view all the answers

Which muscle group forms the floor of the carotid triangle?

Prevertebral fascia and lateral wall of pharynx Signup and view all the answers

Which of the following muscles is responsible for flexing the head and bending the neck forward?

Longus capitis Signup and view all the answers

What is the action of the sternocleidomastoid muscle?

Contraction of one muscle draws the head toward the same side and turns the face to the opposite side Signup and view all the answers

What is the condition called when there is a tortion of the neck?

Torticollis Signup and view all the answers

Which of the following nerves is responsible for the motor innervation of the sternocleidomastoid muscle?

Accessory nerve (CN XI) Signup and view all the answers

Which of the following structures is located in the lateral compartment of the neck, deep to the sternocleidomastoid muscle?

Carotid artery Signup and view all the answers

Which of the following muscle groups is responsible for depressing the hyoid bone or larynx after elevation?

Infrahyoid muscles Signup and view all the answers

Which ganglion is the largest and situated in front of the transverse processes of C1~C3 vertebrae?

Superior cervical ganglion Signup and view all the answers

What structure hooks around the external carotid artery before entering the tongue?

Internal jugular vein Signup and view all the answers

Which triangle in the neck contains the carotid artery?

Carotid triangle Signup and view all the answers

What is the smallest cervical ganglion and is located at the level of transverse processes of C6 vertebra?

Middle cervical ganglion Signup and view all the answers

Which region of the neck contains the sternocleidomastoid muscle?

Anterior region of neck Signup and view all the answers

What does the superficial fascia in the neck consist of?

Fat and connective tissue Signup and view all the answers

Which of the following structures is NOT contained within the carotid sheath?

Cervical sympathetic trunk Signup and view all the answers

Which muscle forms the floor of the occipital triangle?

Levator scapulae Signup and view all the answers

Which nerve emerges above the middle of the posterior border of the sternocleidomastoid muscle and crosses the occipital triangle?

Accessory nerve Signup and view all the answers

Which of the following structures is NOT contained within the supraclavicular triangle?

Phrenic nerve Signup and view all the answers

Which of the following muscles divides the lateral region of the neck into the occipital and supraclavicular triangles?

Omohyoid Signup and view all the answers

Which of the following structures is NOT contained within the prevertebral fascia?

Cervical lymph nodes Signup and view all the answers

Which nerve innervates the cricothyroid muscle?

External branch of superior laryngeal nerve Signup and view all the answers

Which nerve passes deep to the posterior belly of the digastric muscle?

Accessory nerve Signup and view all the answers

Which nerve provides motor and sensory innervation to the diaphragm?

Phrenic nerve Signup and view all the answers

In which fascial plane does the vagus nerve descend in the neck?

Carotid sheath Signup and view all the answers

Which nerve forms the ansa cervicalis loop and supplies the infrahyoid muscles?

Ansa cervicalis Signup and view all the answers

Which nerve innervates the laryngeal muscles, except for the cricothyroid?

Recurrent laryngeal nerve Signup and view all the answers

Study Notes

Neck Anatomy

The ansa cervicalis loop is formed by the C1-C3 ventral rami, and supplies the infrahyoid muscles.
The hypoglossal nerve (CN XII) originates from the posterior aspect of the medulla oblongata.
The carotid triangle contains the carotid artery, and is bounded by the sternocleidomastoid, posterior belly of digastric, and superior belly of omohyoid muscles.
The submental triangle, located in the anterior triangle of the neck, contains the submental lymph nodes.
The superficial fascia in the neck consists of platysma muscle and subcutaneous fat.
The sternocleidomastoid muscle forms the floor of the carotid triangle, along with the scalene muscles.
The sternocleidomastoid muscle is innervated by the spinal accessory nerve (CN XI).
The superior cervical ganglion is the largest and is situated in front of the transverse processes of C1~C3 vertebrae.
The phrenic nerve provides motor and sensory innervation to the diaphragm.
The cricothyroid muscle is innervated by the external laryngeal nerve.
The vagus nerve (CN X) descends in the neck within the carotid sheath.
The muscular triangle of the neck is bounded by the sternocleidomastoid, omohyoid, and anterior belly of digastric muscles.
The hypoglossal nerve (CN XII) hooks around the external carotid artery before entering the tongue.
The occipital triangle is bounded by the sternocleidomastoid muscle, trapezius muscle, and superior belly of omohyoid muscle.
The lateral compartment of the neck, deep to the sternocleidomastoid muscle, contains the spinal accessory nerve (CN XI), brachial plexus, and subclavian artery.
The inferior cervical ganglion, located at the level of transverse processes of C6 vertebra, is the smallest cervical ganglion.
The internal jugular vein, common carotid artery, and vagus nerve are contained within the carotid sheath.
The floor of the submandibular triangle is formed by the mylohyoid muscle.
The floor of the occipital triangle is formed by the splenius capitis and levator scapulae muscles.
The prevertebral fascia contains the scalene muscles, cervical plexus, and phrenic nerve.
The supraclavicular triangle contains the subclavian artery and vein, brachial plexus, and supraclavicular lymph nodes.
The sternocleidomastoid muscle divides the lateral region of the neck into the occipital and supraclavicular triangles.
The external laryngeal nerve passes deep to the posterior belly of the digastric muscle.
The transverse cervical artery emerges above the middle of the posterior border of the sternocleidomastoid muscle and crosses the occipital triangle.
The anterior belly of omohyoid is responsible for depressing the hyoid bone or larynx after elevation.
The sternocleidomastoid muscle is responsible for flexing the head and bending the neck forward.
Torticollis, also known as wryneck, is a condition caused by tortion of the neck.

Note: This information is for educational purposes only and should not be used for self-diagnosis or treatment. Consult with a healthcare professional for any medical concerns.

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Test your knowledge on the different regions of the neck including the investing fascia floor, sternocleidomastoid region, and lateral region of the neck. Identify the structures and contents found in each region.