Neck Anatomy Quiz

Which of the following nerves does NOT innervate the muscles of the neck?

• Cranial nerve V3 (mandibular branch of the trigeminal nerve)

• Cranial nerve 7 (facial nerve)

• Cranial nerve 9 (glossopharyngeal nerve)

• Cranial nerve 11 (spinal accessory nerve)

The submandibular triangle contains which of the following structures?

• Submental lymph nodes, anterior jugular vein

• Submandibular gland, hypoglossal nerve (cranial nerve 12)

• Carotid artery, vagus nerve (cranial nerve 10)

• Phrenic nerve, external jugular vein

The posterior triangle of the neck is divided into two smaller triangles by which muscle?

• Omohyoid (inferior belly)

• Sternocleidomastoid

• Trapezius

• Digastric (posterior belly)

Which muscle forms the muscular floor of the mouth and elevates the hyoid bone and tongue?

• Geniohyoid

• Mylohyoid

• Stylohyoid

• Thyrohyoid

The carotid triangle is important because it contains the carotid sheath. Which of the following is NOT found within the carotid sheath?

• Internal jugular vein

• Vagus nerve (cranial nerve 10)

• Ansa cervicalis

• Common carotid artery

The omohyoid muscle has two bellies (superior and inferior) connected by:

• The ansa cervicalis

• An intermediate tendon located below the sternocleidomastoid muscle

• The digastric muscle’s intermediate tendon

• The thyroid cartilage

Which of the following muscles is involved in depressing the thyroid cartilage?

• Sternohyoid

• Thyrohyoid

• Sternothyroid

• Omohyoid

The phrenic nerve can be found in which triangle of the neck?

• Carotid triangle

• Submandibular triangle

• Occipital triangle

• Subclavian triangle

Which muscle originates from the manubrium of the sternum and inserts into the mastoid process of the temporal bone?

• Sternocleidomastoid

• Trapezius

• Sternohyoid

• Omohyoid

Which of the following statements about the trapezius muscle is INCORRECT?

• It is the only upper limb muscle innervated by a cranial nerve

• It originates from the scapula and inserts into the occipital protuberance

• It is involved in rotating, elevating, and depressing the shoulder

• It is innervated by cranial nerve 11 (spinal accessory nerve)