Lecture 12 Flashcards
___________ bones that touch brain
cranial bones
Paired cranial bones
parietal and temporal bone
unpaired cranial bones
frontal, occipital, sphenoid, ethmoid
______ bones do not touch the brain
facial
Paired fascial bones
maxillae, palatines, nasals, inferior nasal conchae, zygomatic, lacrimals
Unpaired facial bones
vomer, mandible
What are the 4 fascial sinus
- synoid sinus
- frontal sinus
- ethmoid sinus
- maxillary sinus
Which sinus has poor drainage and often results in infection
maxillary sinus
What comes out of and which bone is this part of:
foramen magnum
- spinal cord
- occipital
What comes out of and which bone is this part of:
cribriform plate
- cranial nerve 1
- ethmoid
What comes out of and which bone is this part of:
optic canal
-cranial nerve 2
sphenoid
What comes out of and which bone is this part of:
superior orbital fissure
-cranial nerves 3, 4, 5, 6
spenoid
What comes out of and which bone is this part of:
supraorbital foramen
-cranial nerve 5
frontal bone
What comes out of and which bone is this part of:
inferior orbital fissure
-cranial nerve 3, 4, 5, 6
sphenoid and maxilla
What comes out of and which bone is this part of:
infraorbital foramen
- infraorbital nerve
- maxilla
What comes out of and which bone is this part of:
mental foramen
- inferior alveolar nerve
- mandible
What comes out of and which bone is this part of:
internal auditory meatus
- cranial nerve 7
- cranial nerve 8
- temporaal
What comes out of and which bone is this part of:
jugular foramen
-jugular vein, cranial nerves 9, 10, 11
What comes out of and which bone is this part of:
carotid canal
- carotid artery
- temporal
What comes out of and which bone is this part of:
external auditory meatus
- enternal ear hole
- auditory tube
- temporal bone
ethmoid, most of the sphenoid, base of the occipital, petrous part of temporal
Chondrocranium
small part of sphenoid, the ear ossicles, the styloid process, the hyoid, laryngeal cartilages
Visceral Cranium
mostly intramembranous, and is everything else
Dermatocranium –
_____________ no dermatocranium
jawless fishes –
_______________– like sharks, with chondrocranium and jaws formed from first 2 arches
gnathostomes (jawed fishes)
_______________– formation of dermatocranium
bony fishes and tetrapods
______________– a new jaw joint in the dermatocranium and ear ossicles from old jaw bones
mammals
Summary:
Arch 1 forms
mallus and incus
Summary:
Arch 2 forms
stapes and styloid process of temporal bone
Summary
Arch 3 forms
hyoid
Summary:
Arch 4 and 5 forms
laryngeal cartilage
Summary
Pouch 1 forms
ear hole
Summary
Pouch 2 forms
palantinc tonsol
Summary
Pouch 3 forms
parathyroid gland
Summary
Pouch 4 forms
thymus
