anatomy

Question 1

external ear composed of

Answer 1

cartilaginous pinna (auricle) and external acoustic meatus (ear canal)

Question 2

pinna is formed by?

Answer 2

elastic catilage attached to temporal bone

Question 3

respiratory epithelium is

Answer 3

ciliated columnar epithelium

Question 4

what is the cribriform plate of ethmoid

Answer 4

part of ethmoid bone which has low density and is spongy

Question 5

contents of foramen magnum

Answer 5

spinal cord, vertebral arteries and accessory nerves

Question 6

contents of cribriform plate

Answer 6

axons of olfactory cells in olfactory epithelium

Question 7

contents of internal auditory canal

Answer 7

vestibolucochlear nerve and facial nerve

Question 8

formane ovale contents

Answer 8

mandibular nerve (CNV3) and accessory menigeal artery

Question 9

contents of foramen rotundum

Answer 9

maxillary nerve (CNV2)

Question 10

contents of hypoglossal canal

Answer 10

hypoglossal nerve (CNXII)

Question 11

contents of jugular foramen

Answer 11

CN IX, X and XI, superior bulb of internal jugular vein

Question 12

contents of superior orbital fissure

Answer 12

opthamalic veins, opthamalic nerves (CNV1), CNIII, IV, and VI

Question 13

olfactory pathway

Answer 13

receptor cells in olfactory epithelium
pass up through cribriform plate
synapse with olfactory bulb (ganglia)
then neurons pass along olfactory tract to temporal lobe and olfactory areas

Question 14

drainage of right and left frontal sinuses

Answer 14

through the frontonasal duct into the ethmoid infundibulum which opens into semilunar hiatus of middle nasal meatus

Question 15

ethmoid bulla

Answer 15

swelling on the superior border of semilunar hiatus

Question 16

nasocrinmal duct drain into?

Answer 16

inferior nasal meatus (excess tears)

Question 17

boundaries of nasopharynx

Answer 17

posterior to the nasal cavity to the soft palate (respiratory function)

Question 18

boundaries of oropharynx

Answer 18

soft palate to superior border of the epiglottis (digestive)

Question 19

boundaries of laryngopharynx

Answer 19

superior border of epiglottis to inferior border of cricoid cartilage (digestive)

Question 20

type of cartilage is the epiglottis

Answer 20

elastic

Question 21

supraglottis included

Answer 21

the laryngeal vestibules and ventricles

Question 22

define the borders of oral vestibule

Answer 22

between internal surface of lips and external surface of teeth

Question 23

define the borders of oral cavity proper

Answer 23

between internal surface of teeth and oropharynx

Question 24

which bones form the hard palate

Answer 24

palatine bones and maxillary

Question 25

arterial contributions of kiesselbach’s plexus

Answer 25

first set come from opthamalic artery: anterior and posterior ethmoidal
next come from maxillary: sphenopalatine artery and greater palatine artery
facial artery: (lateral nasal artery not a contribution) and septal branch of superior labial artery

Question 26

pars tensa

Answer 26

inferior and larger part of the tympanic membrane

made of 3 layers