Vascular System & Lymph Nodes

Question 1

which veins provide superficial venous drainage of the neck

Answer 1

external jugular and anterior jugular

Question 2

which 2 veins join to form the external jugular and where

Answer 2

the posterior auricular vein and the retromandibular vein join behind the angle of the mandible to form the external jugular vein

Question 3

what does the posterior auricular vein drain?

Answer 3

drains the scalp behind and above the ear

Question 4

which 2 veins join to form the retromadibular vein and where

Answer 4

the superficial temporal vein and the maxillary veins join in the parotid gland. They travel to the angle of the mandible and divide into an ant. and post. division. The post division joins with the post. auricular to from the jugular, the ant joins the facial nerve to form the common facial vein which drains into the internal jugualr

Question 5

which 2 veins join to form the retromadibular vein and where

Answer 5

the superficial temporal and the maxillary veins join in the parotid gland. They travel to the angle of the mandible and divide into an ant. and post. division. The post division joins with the post. auricular to from the jugular, the ant joins the facial nerve to form the common facial vein which drains into the internal jugualr

Question 6

where does the external jugular travel?

Answer 6

in the superficial fascia (above the SCM), when right above the clavicle it goes behind the SCM and pierces the investing layer of cervical fascia and enters the subclavian vein

Question 7

what do the anterior jugular veins drain? Where do they meet?

Answer 7

the anterior aspect of the neck. They meet just superior to the hyoid bone.

Question 8

what forms the jugular venous arch

Answer 8

the communictaion between the right and left anterior jugular veins. Right above the suprasternal notch

Question 9

explain where the right common carotid comes from

Answer 9

from the brachiocephalic trunk (just behind the sterno clavicular joint) and is always in the neck

Question 10

explain where the left common carotid comes from

Answer 10

it begins in the thorax as a branch off the aorta and passes superiorly to enter the neck near the left sternoclavicular joint

Question 11

where do the common carotid arteries divide into external and internal carotid arteries?

Answer 11

near the superior edge of the thyroid cartilage

Question 12

what innervates the carotid sinus

Answer 12

IX

Question 13

what innervates the carotid body

Answer 13

IX, X

Question 14

what 3 anterior branches does the external carotid give off

Answer 14

the superior thyroid artery, the lingual artery and the facial artery

Question 15

what does the superior thyroid artery supply?

Answer 15

the superior pole of the thyroid gland

Question 16

what does the lingual artery supply?

Answer 16

it passes deep to XII and between the middle constrictor and hypoglossus muscles

Question 17

what does the facial artery supply

Answer 17

passes deep to the stylohyoid and post belly of digastric muscles, deep the submandibular gland and mandible, and emerges over the edge of the mandible anterior to the masseter muscle to enter the face

Question 18

what are the 3 posterior branches of the external carotid artery

Answer 18

ascending pharyngeal artery, the occipital artery, and the posterior auricular artery

Question 19

what does the occipital artery supply?

Answer 19

posterior aspect of the scalp

Question 20

what are the 2 terminal branches of the external carotid artery?

Answer 20

the superficial temporal artery and the maxillary artery

Question 21

where does the maxillary artery end up?

Answer 21

pterygoplatine fossa

Question 22

what are the components of the thyrocervical trunk? SITA

Answer 22

ascending cervical artery, transverse cervical artery, inferior thyroid artery, suprascapular artery

Question 23

what are the veins making the internal jugular vein

Answer 23

the superior bulb of the jugular vein (sigmoid sinus), the inferior petrosal sinus

Question 24

where does the internal jugular vein exit the skull

Answer 24

jugular foramen

Question 25

which veins drain into the internal jugular veins (MEDICAL SCHOOLS LET FUN PEOPLE IN + occipital)

Answer 25

inferior petrosal sinus, pharyngeal, facial, lingual, occipital, superior thyroid, middle thyroid

Question 26

what are the lymphatics of the neck

Answer 26

superficial nodes of the head, superficial cervical nodes, deep cervical nodes

Question 27

what are the components of the superficial nodes of the head

Answer 27

occipital nodes, mastoid nodes, pre-auricular and parotid nodes, submandibular nodes, submental nodes

Question 28

where are the superficial cervical lymph nodes

Answer 28

along the external jugular vein on the superior surface of the SCM

Question 29

where are the deep cervical lymph nodes

Answer 29

along the internal jugular vein

Question 30

where do lymphatic vessels from the right and left jugular and subclavian trunk drain>

Answer 30

into the right lymphatic duct (on the right), or the thoracic duct (on the left side)

Question 31

what does the superficial subfascial lymph node system drain

Answer 31

Circular between chin and occipital (occipital, mastoid, parotid, submandibular, and submental lymph nodes) and along the course of the external jugular vein.

Question 32

what does the deep lymph node system drain?

Answer 32

it has a bitaleral triangle arrangement, bounded anteriorly by lymph nodes nexxt to the internal jugualr vein, and posteriorly by the spinal lymph nodes cheain with supraclavicular lymph node

Question 33

the perivisceral lymph node system is made of

Answer 33

retropharyngeal, prelaryngeal, prethyroidean, pretracheal, recurrent nodes

Question 34

the internal jugular vein travels with what nerves cranially?

Answer 34

IX, X, XI