More Neck

Question 1

Identify structure A.

Answer 1

Thyrohyoid membrane of larynx.

Question 2

What is the thyrohyoid membrane?

Answer 2

A ligament

Question 3

What does the thyrohyoid membrane attach to?

Answer 3

Upper margin of thyroid lamina, superior horn of thyroid cartilage
Hyoid bone

Question 4

What is inside the thyroyoid membrane?

Answer 4

Superior laryngeal vessels and internal laryngeal nerves

Question 5

Identify structure B.

Answer 5

Right lobe of thyroid.

Question 6

Identify structure C.

Answer 6

Thymus

Question 7

Describe the location of the thymus.

Answer 7

Posterior to sternum
Anterior to pericardium

Question 8

What is the function of the thymus?

Answer 8

Production of T-cells

Question 9

What system does the thymus belong to?

Answer 9

Immune system

Question 10

Describe the innervation of the thymus.

Answer 10

Vagus nerve and cervical sympathetic chain.

Question 11

Describe the blood supply to the thymus.

Answer 11

Branches of internal thoracic, inferior thyroid, superior thyroid (sometimes) arteries

Question 12

Identify structure D.

Answer 12

Thyroid

Question 13

Describe the location of the thyroid gland.

Answer 13

Anterior to larynx and trachea.

Question 14

Describe the blood supply to the thyroid gland.

Answer 14

Superior and inferior thyroid arteries

Question 15

Describe the innervation of the thyroid gland.

Answer 15

Superior, middle and inferior cervical ganglia

Question 16

What is the function of the thyroid gland?

Answer 16

Synthesizes thyroid hormones

Question 17

To which body system does the thyroid gland belong?

Answer 17

Endocrine

Question 18

Identify structure E.

Answer 18

Carotid sheath

Question 19

What is within the carotid sheath?

Answer 19

Common and internal carotid arteries, internal jugular vein, vagus nerve

Question 20

What is the carotid sheath?

Answer 20

Fascial layer

Question 21

What is the function of the carotid sheath?

Answer 21

Protects important neurovasculature in the neck.

Question 22

Identify structure F.

Answer 22

Left lobe of thyroid gland.

Question 23

Identify structure G.

Answer 23

Isthmus of thyroid gland.

Question 24

Identify structure A.

Answer 24

Ansa cervicalis

Question 25

Identify structure B.

Answer 25

Carotid body

Question 26

Identify structure C.

Answer 26

Carotid sinus

Question 27

What is the origin of the ansa cervicalis?

Answer 27

Anterior rami of first to third (sometimes fourth) cervical nerves.

Question 28

Describe the course of the superior root of the ansa cervicalis.

Answer 28

Leaves hypoglossal nerve Descends between internal juglar vein and carotid arteries

Question 29

Describe the course of the inferior root of the ansa cervicalis.

Answer 29

Descends medial or lateral to internal jugular vein, unites with superior root.

Question 30

What is the target of the ansa cervicalis?

Answer 30

Infrahyoid muscles

Question 31

What is the function of the carotid body?

Answer 31

Monitors oxygen levels in arterial blood.

Question 32

What is the function of the carotid sinus?

Answer 32

Monitors changes in arterial blood pressure.

Question 33

Name structure A.

Answer 33

sublingual gland

Question 34

Name structure B.

Answer 34

Submandibular gland

Question 35

Name structure C.

Answer 35

Submandibular duct

Question 36

Where is the sublingual gland located?

Answer 36

Floor of mouth

Question 37

What artery supplies the sublingual gland?

Answer 37

Sublingual artery

Question 38

Describe the innervation of the sublingual gland.

Answer 38

Chorda tympani (CN VII); Lingual nerve (CN V3)

Question 39

What is the function of the sublingual gland?

Answer 39

Mainly secret mucous fluid, but can also secrete serous fluid

Question 40

What body system is the sublingual gland part of?

Answer 40

Digestive

Question 41

Describe the location of the submandibular gland.

Answer 41

Within submandibular triangle of anterior neck.

Question 42

Describe the arterial supply to the submandibular gland.

Answer 42

Glandular branches of facial artery.

Question 43

Describe the innervation of the submandibular gland.

Answer 43

Chorda tympani (CN VII)

Question 44

What is the function of the submandibular gland?

Answer 44

Secretes mucous and serous saliva

Question 45

To which body system does the submandibular gland belong?

Answer 45

Digestive