LAB Neck And Submandibular I

Question 0

What does the cricothyroid membrane connect?

Answer 0

The cricoid cartilage and the thyroid cartilage

Question 1

What does the thyrohyoid membrane connect?

Answer 1

The hyoid bone and the thyroid cartilage

Question 2

Where does the platysma connect?

Answer 2

From the lower margin of the mandible to the thorax

Question 3

What is the platysma innervates by?

Answer 3

The cervical branch of the facial nerve

Question 4

What fascia is located below the platysma?

Answer 4

The investing layer of (deep) cervical fascia?

Question 5

What does the investing layer of the deep cervical fascia enclose?

Answer 5

The sternocleidomastoid and the trapezius as it encircles the neck

Question 6

What fascia encloses the thyroid gland?

Answer 6

The pretracheal or visceral fascia

Question 7

What fascia encloses the strap muscles?

Answer 7

The infrahyoid fascia

Question 8

What fascia encloses the deep muscles of the neck?

Answer 8

The prevertebral fascia

Also encircles the thyroid cartilage

Question 9

What does the carotid sheath enclose?

Answer 9

The carotid artery
Internal jugular
Vagus nerve

Question 10

What marks boarders of both the post and ant triangles?

Answer 10

The sternocleidomastoid

Question 11

Where do the cutaneous sensory nerves of the neck originate from?

Answer 11

Cervical nerves 2-4

Question 12

What muscle does the accessory nerve pass under?

Answer 12

Sternocleidomastoid which it also innervates

Question 13

What four nerves are included in the cervical plexus?

Answer 13

Lesser occipital
Great auricular
Transverse cervical
Supraclavicular

Question 14

What are the four strap muscles?

Answer 14

Sternohyoid (beneath omohyoid)

Omohyoid (most superficial)

Sternothyroid (beneath sternohyoid below thyroid cartilage)

Thyrohyoid (connects the thyroid cartilage and the hyoid bone)

Question 15

What does the ANSA cervicalis do?

Answer 15

Plexus of motor nerves
Located on the carotid sheath
Innervates the strap muscles
From C1-3

Question 16

What does the internal jugular vein join?

Answer 16

It joins the subclavian veins to form the brachiocephalic veins that join to form the superior vena cava

Question 17

Which strap muscles is innervates by a branch that appears to come off of the hypoglossal nerve?

Answer 17

The thyrohyoid muscle

Question 18

What nerve is located at the bifurcation of the common carotid artery?

Answer 18

Glossopharyngeal

With the carotid body that senses pressure and is a chemorecptor

Question 19

What are the first two branches of the external carotid artery?

Answer 19

Superior laryngeal artery (pierces the thyrohyoid membrane)

Superior thyroid artery

Question 20

What does the lingual artery supply?

Answer 20

The tongue

Question 21

What is the superior laryngeal nerve (internal and external branches) a branch of?

Answer 21

The vagus nerve

Question 22

At what level does the common carotid bifurcate?

Answer 22

Upper boarder of the thyroid cartilage

Question 23

What nerve and artery penetrate the thyrohyoid membrane?

Answer 23

The superior laryngeal artery and nerve

Question 24

What nerve bodies are found in the superior,middle, and inferior cervical sympathetic ganglia?

Answer 24

Post synaptic sympathetic cell bodies

Question 25

What is a cricothyrotomy?

Answer 25

Cutting of the cricothyroid ligament
To relieve an acute respiratory obstruction
A novices choice to a tracheotomy

Question 26

Through what foramen does the accessory nerve enter and leave the cranial cavity?

Answer 26

Enters the foramen magnum

Leaves through the jugular foramen

Question 27

What does the vagus nerve supply?

Answer 27

Motor to the pharynx (except the stylopharyngeus) and larynx

Sensory to the larynx and adjacent pharynx

Question 28

What supply’s most sensory to the phyarnx?

Answer 28

The Glossopharyngeal