Anatomy head and neck

Question 1

what are the branches of the ophthalmic nerve trigeminal V1?

Answer 1

Supraorbital
Supratrochlear
External Nasal
Infratrochlear
Lacrimal

Question 2

what are the branches of the maxillary division trigeminal V2?

Answer 2

Zygomaticotemporal
Zygomaticofacial
Infraorbital

Question 3

what are the branches of the mandibular division trigeminal V3?

Answer 3

Auriculotemporal
Buccal
Mental

Question 4

What is unique about C1 posterior root?

Answer 4

it is only MOTOR no sensory

Question 5

where does the cervical plexus carry MOTOR fibers to?

Answer 5

infrahyoid muscles

Question 6

what cervical roots make up the ansa cervicalis and what muscles does it supply?

Answer 6

C1, C2, C3

sternohyoid
sternothyroid
omohyoid

NOT THYROHYOID

Question 7

what nerve supplies the thyrohyoid?

Answer 7

Hypoglossal nerve- C1 fibers

Question 8

what is the phrenic nerve sensory supply?

Answer 8

membranes of the thorax and abdomen

Question 9

what 2 veins make up the external jugular vein?

Answer 9

retromandibular

posterior auricular

Question 10

what does the external jugular vein drain into?

Answer 10

subclavian vein

Question 11

what are the boundaries of the posterior triangle in the neck?

Answer 11

A: posterior SCM
P: anterior trap
I: superior middle 3rd of clavicle

Question 12

what are the boundaries of the anterior triangle in the neck?

Answer 12

S: inferior mandible
A: anterior midline
P: anterior SCM

Question 13

what are the contents of the submandibular triangle?

Answer 13

submandibular gland 
internal carotid artery
facial artery 
internal jugular vein 
CN IX and X

Question 14

which artery goes to the brain?

Answer 14

Internal carotid artery

Question 15

what drains the dural venous sinus?

Answer 15

internal jugular vein

Question 16

why is the carotid triangle important?

Answer 16

the common carotid artery bifurcates here

Question 17

where does the hyoid bone sit?

Answer 17

between the mandible and larynx

Question 18

what muscles attach to the hyoid bone?

Answer 18

infrahyoid muscles

Question 19

which of the infrahyoid muscles are superficial and which are deep?

Answer 19

omohyoid & sternohyoid- superficial

sternothyroid & thyrohyoid- deep

Question 20

what is a layer of fascia extending from the base of the skull to the root of the neck?

Answer 20

carotid sheath

Question 21

what are the boundaries for the superior thoracic aperture (thoracic inlet)?

Answer 21

1st thoracic vertebra
1st ribs and cartilages
manubrium

Question 22

where does the thyroid gland sit?

Answer 22

C5-T1

Question 23

what is a branch to the thyroid on the right side that occurs in 10% of people?

Answer 23

thyroid ima artery

Question 24

where does the trachea begin?

Answer 24

at the larynx C6

Question 25

what do the walls of the trachea contain that allow for expansion of esophagus when swallowing?

Answer 25

incomplete cartilaginous C rings

Question 26

where is the esophagus located?

Answer 26

connects the pharynx to the stomach at C6; lies posterior to trachea

Question 27

what are the branches of the external carotid artery?

Answer 27

``` Superior thyroid Ascending Pharyngeal Lingual Facial Occipital Posterior auricular Superficial temporal- terminal Maxillary- terminal ```

Question 28

what is the baroreceptor innervated by the glossopharyngeal nerve- carotid branch?

Answer 28

carotid sinus

Question 29

what is a small mass located in the common carotid artery that acts as a chemoreceptor that detects chemical changes in the blood?

Answer 29

carotid body

Question 30

what does the internal jugular vein drain into?

Answer 30

brachiocephalic vein

Question 31

where does the internal jugular vein begin?

Answer 31

begins at the jugular foramen as a continuation of the sigmoid sinus

Question 32

the recurrent laryngeal supplies all muscles of the larynx except?

Answer 32

cricothyroid which is supplied by external laryngeal branch

Question 33

what articulates with the temporal bone to form the TMJ joint?

Answer 33

condylar process of mandible

Question 34

what are the posterior apertures of the nasal cavity which open into the nasopharynx?

Answer 34

choanae

Question 35

what 2 bones together form the hard palate and are also the floor of the nasal cavity?

Answer 35

maxilla and palatine

Question 36

what bones form the roof of the nasal cavity?

Answer 36

nasal, frontal, cribiform plate of the ethmoid, sphenoid

Question 37

what does the sphenoid sinus drain into?

Answer 37

sphenoethmoidal recess

Question 38

what do the posterior ethmoidal cell open into?

Answer 38

superior meatus

Question 39

what opens into the middle meatus?

Answer 39

frontal sinus maxillary sinus middle and anterior ethmoidal cells

Question 40

what opens into the hiatus semilunaris of the middle meatus?

Answer 40

frontonasal duct anterior ethmoid cells maxillary sinus

Question 41

where does the nasolacrimal duct drain?

Answer 41

inferior meatus

Question 42

what is the lower 2/3 of the nasal cavity?

Answer 42

respiratory region- air goes through here

Question 43

what is the superior nasal concha and upper 1/3 of the nasal septum which contains CN I?

Answer 43

olfactory region- air swirls around so we can smell

Question 44

what is the autonomic innervation of the olfactory region?

Answer 44

pterygopalatine ganglion

Question 45

what is the primary blood supply to nasal cavity?

Answer 45

sphenopalatine artery

Question 46

what facilitates drainage of the sinuses?

Answer 46

paranasal sinuses

Question 47

what opens into the hiatus semilunaris of the middle meatus via the frontonasal duct?

Answer 47

frontal sinus

Question 48

what is the largest of the paranasal sinuses?

Answer 48

maxillary sinus

Question 49

what is the only sinus present at birth and most prone to infection?

Answer 49

maxillary sinus

Question 50

where is the maxillary sinus located?

Answer 50

lateral to the nasal cavity and inferior to the orbit

Question 51

where is the ethmoid sinus located?

Answer 51

within the ethmoid bone btw the orbit and nasal cavity contains posterior, middle and anterior ethmoidal cells

Question 52

where are common areas an infection of the nasal cavity can spread?

Answer 52

nasopharynx: acute pharyngitis middle ear via the pharyngotympanic tube: otitis media paranasal sinuses: sinusitis lacrimal apparatus and conjunctiva via nasolacrimal duct: conjunctivitis

Question 53

CSF fluid dripping through the nose indicates?

Answer 53

damage to the cribiform plate