Lecture 2 and 6- Scalp and Skull Flashcards
Exam 2
layers of the scalp
skin, CT (dense), aponeurosis, loose CT, periosteum
in what layers of the scalp would hair and hair follicles be located
skin and dense CT
in what layer would significant bleeding occur?
dense CT
what layer of the scalp do infections tend to localize and spread?
loose connective tissue
TMJ is made up of which two cavities?
neurocranium and viscero-cranium
where does the cerebellum sit?
posterior cranial fossa
what are the 6 bones of the cranium?
frontal, sphenoid, ethmoid, occipital, parietal, temporal
name all of the bones of the facial skeleton?
zygomatic, lacrimal, nasal, inferior nasal conchae, palatine, maxilla, mandible, vomer, ethmoid, sphenoid-pterygoid process
what are the 7 bones of the eye orbit?
maxilla, zygomatic, frontal, ethmoid, lacrimal, sphenoid, palatine
what 3 bones form the orbit of the eye
frontal, maxilla, zygomatic
what is the intersection of the frontal and nasal bones called?
nasium
what bones does the temporal bone articulate with?
parietal, sphenoid, occipital, mandible, zygomatic
what are soft spots on the skull called in children
anterior and posterior fontanelle
what bones does the coronal suture connect?
frontal and parietal
what bones does the squamous suture connect?
Temporal and parietal bones
what bones does the lamboid suture connect?
occipital and parietal
what bones does the pterion suture connect?
sphenoid, parietal, temporal, and frontal
why are fractures to the spheno-parietal suture so life threatening?
middle meningeal vessels under this suture and fracture to this suture can lead to an epidural hematoma
what does the mandibular condylar process articulate with?
temporal
define craniosyntosis
closing of the cranial bones early, plagiocephaly
what is the bregma
junction of sagittal and coronal sutures
what is the lamda
junction of sagittal and lambdoid sutures
what nerves are in the anterior cranial fossa?
olfactory 1
what nerves are in the middle cranial fossa?
2- Optic
3- Oculomotor
4- trochlear
5- trigeminal
6- abducens
what nerves are in the posterior cranial fossa?
7- facial
8- vestibulocochlear
9- glossopharyngeal
10- vagus
11- accessory
12- hypoglossal
which bones are in the anterior cranial fossa
ethmoid, sphenoid, and fronta;
the crista galli and cribiform plate are part of what bone
ethmoid
what bones are in the middle cranial fossa
sphenoid, temporal, parietal
what bones are in the posterior cranial fossa
occipital, parietal, temporal, sphenoid
which nerves innervate the dura
trigeminal, vagus, 1-2 cervical n, ethmoidal nerves
what are the boundaries of the extradural hematoma
cranium and dura
where is the subdural hematoma
dura mater and pia mater
what is a subarachnoid hemorrhage
in subarachnoid space
which nerve is closest to the internal carotid artery
optic nerve
