10/14 Questions Flashcards
What is the cranium?
the skull minus the mandible
What are the characteristics of sutura notha (false sutures)?
sutures lacking interlocking of adjacent bone surfaces; typically formed by endochondral ossification
What is the norma verticalis?
the skull viewed from the top
What is the appearance of the intersection of the coronal and sagittal sutures called?
bregma
What is the appearance of the intersection of the lambdoid and sagittal sutures called?
lambda
What is the diamond shaped remnant of developing membrane bone at the intersection of the frontal bone with both parietal bones?
anterior fontanelle
What is the diamond shaped remnant of developing membrane bone at the intersection of the occipital bone with both parietal bones?
posterior fontanelle
What is the glabella?
elevation of bone over the frontal sinus between the orbits
What is the name to the outline of the nasal cavity at the front of the skull?
piriform aperture
What is the name given to the alveolar jugum of the canine tooth in the maxilla?
canine eminence
What forms a bullet-like chin?
large mental protuberance
What forms an indented chin?
well developed bilateral mental tubercles and a slight mental protuberance
What is the tip of the external occipital protuberance called?
inion
What points on the skull are used to measure the skull size?
nasion, vertex, inion, and gnathion
What points on the skull are used to measure cranial vault capacity?
nasion, vertex, and inion
The olfactory nerve exits the cranial vault via what opening?
cribiform plate of the ethmoid bone
What bony feature is prominent in the median plane of the middle cranial fossa?
sella turcica
What are the contents of the optic canal?
optic nerve and ophthalmic artery
What are the contents of the superior orbital fissure?
ophthalmic veins, oculomotor nerve, trochlear nerve, ophthalmic division of the trigeminal nerve, abducent nerve
What forms the roof of the posterior cranial fossa?
tentorium cerebelli
What part of the cerebrum occupies the posterior cranial fossa?
none; the tentorium cerebelli seperates the cerebrum into a space aboe the posterior cranial fossa
What part of the central nerve system occupies the posterior cranial fossa?
cerebellum, pons, medulla oblongata
What are the contents of the internal acoustic meatus?
CN VII (facial) CN VIII (auditory) Nerve of Wrisberg Vestibular and Conchlear roots VIII Internal auditory artery and vein
What cranial nerves are located within the jugular foramen?
Glossopharyngeal (IX)
Vagus (X)
Spinal accessory (XI)
What can the five layers of the scalp spell?
Skin Connective tissue Aponeurosis Loose connective tissue Periosteum
What are the principal sources of blood to the scalp?
internal and external carotid artery branches
Which divisions of the trigeminal nerve receive sensory information from the scalp?
all 3 divisions - ophthalmic, maxillary, mandibular nerves
Which mandibular division, trigeminal nerve branch innervates the scalp?
auriculotemporal nerve
What type of motor fibers to skeletal muscle are given off by the facial nerve?
branchial efferent (BE)
What is the third layer of the scalp associated with?
muscular component of the scalp