random anatomy

Question 1

temporalis inserts on

Answer 1

coronoid process

Question 2

what inserts on the lingula?

Answer 2

sphenomandibular ligament

Question 3

branches of the thyrocervical trunk

Answer 3

• inferior thyroid a.
• transverse cervical a.
• suprascapular a.

Question 4

nuchal ligament

Answer 4

• forms septum in posterior neck

- prevents hyperflexion

Question 5

hangmans fracture

Answer 5

• bilateral

- thru pedicles of C2

Question 6

Jefferson fracture

Answer 6

• compression fracture
• C1
• transverse ligament tear

-anterior/posterior arch, lateral split

Question 7

clay shoveler’s fracture

Answer 7

• C6-T1

- avulsion of spinous process

Question 8

nerve point

Answer 8

• great auricular
• lesser occipital
• transverse cervical
• supraclavicular

Question 9

posterior portion of scalp/neck innervated by (sensory)

Answer 9

DORSAL rami of cervical nerves

Question 10

nerve to mylohyoid

• what is it a branch of?
• what does it innervate?

Answer 10

• branch of inferior alveolar n (V3)

- innervates mylohyoid and anterior digastric

Question 11

fxn of mylohyoid

Answer 11

• elevates floor of mouth

- depresses mandible or elevates hyoid

Question 12

most muscles of the head/neck are supplied by branches of cranial nerves or ventral rami of cervical nerves. What is the exception?

Answer 12

suboccipital region

-supplied by the DORSAL rami of cervical nerves (suboccipital n)

Question 13

cervical sinus/fistula

Answer 13

• develops when clefts 2-4 are not obliterated by overgrowth of 2nd arch
• typically anterior to SCM

Question 14

artery and nerve that are 90 deg to each other near thyroid

Answer 14

• recurrent laryngeal n

- inferior thyroid artery

Question 15

“danger space” between which fascial layers?

Answer 15

• prevertebral

- alar

Question 16

epidural hematoma

Answer 16

• rupture of middle meningeal artery

- lens shaped

Question 17

subdural hematoma

Answer 17

• bridging/cerebral vein

- crescent shape

Question 18

subarachnoid hematoma

Answer 18

• cerebral artery

- irregular shape

Question 19

papilledema

Answer 19

• swelling of optic disc
• caused by increased intracranial pressure
• occludes central vein of retina
• blindness in that eye

Question 20

cleft lip

Answer 20

• intermaxillary prominence

- maxillary swelling

Question 21

primary palate

Answer 21

-intermaxillary segment of medial nasal processes

Question 22

secondary palate

Answer 22

palatine shelves from maxillae

Question 23

incisive foramen forms between

Answer 23

• primary palate

- secondary palate

Question 24

skull bones except ________ form from neural crest cells

Answer 24

occipital

Question 25

highlights arch 1

Answer 25

• CN V
• maxillary artery
• face bones
• muscles of mastication

Question 26

highlights arch 2

Answer 26

• CN VII
• stapedial artery, corticotympanic a
• stapes, ligament, upper hyoid
• FACIAL MUSCLES

Question 27

highlights arch 3

Answer 27

• CN IX
• common carotid
• lower hyoid
• stylopharyngeus m

Question 28

highlights arch 4

Answer 28

• CN X (sup laryngeal br)
• aorta, R subclavian
• laryngeal cartilage

Question 29

highlights arch 6

Answer 29

• CN X (recurrent laryngeal)
• ductus arteriosus
• laryngeal cartilage

Question 30

third pouch

Answer 30

• inferior parathyroid

- thymus

Question 31

fourth pouch

Answer 31

• superior parathyroid

- parafollicular cells of thyroid

Question 32

branchial cleft cyst - failure of obliteration of which branchial cleft?

Answer 32

second

Question 33

sensation to TMJ?

Answer 33

auriculotemporal n

also sensation to :

• skin over temporalis m
• upper part of ear

Question 34

drains into inferior meatus?

Answer 34

nasolacrimal duct

Question 35

sphenoid sinus drains into?

Answer 35

sphenoethmoidal recess

Question 36

drains into superior meatus?

Answer 36

POSTERIOR ethmoid air cells

Question 37

sensation to internal side of tympanic membrane?

Answer 37

glossopharyngeal n

Question 38

sensation to external side of tympanic membrane?

Answer 38

auricular br. of facial

auricular br of vagus

Question 39

danger area/nose to cavernous sinus

Answer 39

• nasal venous tributary
• angular vein
• superior ophthalmic v
• cavernous sinus