Neck Innervation And Blood Supply Part 2

Front 1

What are the functions of the carotid sinus and carotid body and where are they found?

Back 1

carotid sinus: pressure sensor
carotid body: oxygen sensor
found at the carotid bifurcation

Front 2

What branches are from the Second Part of the Subclavian Artery?

Back 2

Costocervical trunk which branches into the deep cervical artery and the superior intercostal artery

Front 3

Name the branches coming off the external carotid artery in order going up to the head.

Back 3

External carotid artery-->superior thyroid (muscular branches + superior laryngeal artery)-->ascending pharyngeal artery-->lingual artery-->facial artery (ascending palatine artery + tonsilar artery + glandular branches)-->occipital artery-->posterior auricular artery-->ends by diving to superficial temporal artery + maxillary artery

Front 4

What is found at the third part of the subclavian artery?

Back 4

usually no branches. sometimes the suprascapular artery originates here. sometimes Dorsal scapular artery originates here.

Front 5

What arteries are contained in the posterior triangle of the neck in order?

Back 5

-subclavian artery-->transverse cervical artery and suprascapular artery (both from thyrocervical trunk)
-Occipital artery (from the external carotid artery that's from the common carotid artery)

Front 6

What are the arteries in the anterior triangle of the neck?

Back 6

Common, Internal and External Carotid arteries and all branches

Front 7

What are the arteries in the root of the neck?

Back 7

Brachiocephalic trunk and subclavian arteries and all branches

Front 8

What are the veins of the posterior triangle of the neck?

Back 8

external jugular vein and subclavian vein

Front 9

What are the veins in the carotid subtriangle?

Back 9

-Anterior jugular vein: drains into external jugular or subclavian vein
-external jugular vein: drains into subclavian vein
-internal jugular vein: tributaries are from the facial, lingual, pharyngeal, and thyroid veins

Front 10

What is found in the submandibular triangle of the neck?

Back 10

submandibular gland, traversed by hypoglossal nerve (CN12), nerve to mylohyoid muscle, facial artery and vein, lingual artery and vein, submental arty and submandibular lymph nodes.

Front 11

What are the three layers of cervical viscera and their contents?

Back 11

-Endocrine layer (superficial): thyroid gland, parathyroid glands, thymus
-Respiratory layer (Middle): larynx and trachea
-alimentary layer (deep): pharynx and esophagus

Front 12

What is the arterial supply of the thyroid gland?

Back 12

superior thyroid artery (from external carotid artery) and inferior thyroid artery (from thyrocervical trunk)

Front 13

what is the venous drainage of the thyroid gland?

Back 13

3 pairs of veins: superior thyroid vein, middle thyroid vein, inferior thyroid vein

Front 14

What is the nerve supply of the thyroid gland?

Back 14

cervical sympathetic ganglia

Front 15

Where are parathyroid glands found and what are their functions?

Back 15

-found on posterior surface of the thyroid gland; lie just lateral to the anastomosis between superior and inferior thyroid arteries
-essential for life: tetany occurs without them and severe convulsions due to fall in blood calcium levels
-same arterial, venous, nerve, and lymphatic supplies with thyroid gland

Front 16

What does the horizontal superficial ring of the lymphatic system surround? what does the horizontal deep ring of the lymphatic system surround?

Back 16

-transition area between head and neck
-visceral structures of the neck

Front 17

What is the flow of the Lymphatic system from the horizontal superficial and deep rings to the left and right sides out?

Back 17

-Left: left deep cervical chain drains into the thoracic duct-->junction of the subclavian and the internal jugular vein
-Right: right deep cervical chain drains into Common Right Lymphatic duct-->drains into the junction of the subclavian and internal jugular vein.

Front 18

Name the flow of lymph for the following: lower lip, chin, upper lip, cheek, eyelids, temples, prominence of cheek, scalp

Back 18

Front 19

Name the flow of lymph for the following: tongue - tip, lateral part of ant. 2/3, medial part of ant 2/3, post 1/3

Back 19

Front 20

Name the flow of lymph for the following: maxillary teeth, mandibular teeth, gingiva/floor of mouth (ant. floor of mouth, vestibular gingiva of max and mand, mandibular lingual gingiva and floor of mouth, palatal gingiva)

Back 20