The Head Flashcards
What were the five types of suture based on Latin groupings?
serrate, denticulate, limbous, squamous and harmonia
What are the characteristics of sutura vera (true sutures)?
sutures demonstrating interlocking of the adjacent bone surfaces; typically formed by intramembranous ossification
What are the characteristics of sutura notha (false sutures)?
sutures lacking interlocking of adjacent bone surfaces; typically formed by endochondral ossification
Which sutures demonstrate non-interlock, but will overlap at their edges?
squamous sutures
What were the classifications of sutura notha (false sutures) based on Latin groupings?
squamous and harmonia
What are the typical examples of the plane suture or harmonia suture?
cruciate suture made up of the intermaxillary, interpalatine and palato-maxillary sutures
What are the examples of the schindylesis type of suture?
sphenoid - ethmoid - vomer articulation, the palatine - maxilla - vomer articulation
What are the examples of the gomphosis joint?
maxilla - root of tooth; mandible - root of the tooth
What are five views of the skull called?
norma verticalis, norma frontalis, norma occipitalis, norma lateralis, norma basalis
What is the diamond shaped remnant of developing membrane bone at the intersection of the frontal bone with both parietal bones?
the anterior fontanelle
What is the diamond shaped remnant of developing membrane bone at the intersection of the occipital bone with both parietal bones?
the posterior fontanelle
What is the glabella?
the elevation of bone over the frontal sinus between the orbits
What is the name given 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?
a large mental protuberance
What forms an indented chin?
well developed bilateral mental tubercles and a slight mental protuberance
What bones form the pterion?
parietal, temporal, sphenoid and frontal bones
What points on the skull are used to measure the skull size?
the nasion, vertex, inion and gnathion
What points on the skull are used to measure cranial vault capacity?
the nasion, vertex and inion
The olfactory nerve exits the cranial vault via what opening?
cribriform plate of the ethmoid bone
What are the contents of the optic canal?
the optic nerve and ophthalmic artery
What are the contents of the superior orbital fissure?
the ophthalmic veins, the oculomotor nerve, the trochlear nerve, the ophthalmic division of the trigeminal nerve, and the abducent nerve
What are the contents of the foramen rotundum?
the maxillary division of the trigeminal nerve (cranial nerve Vb)
What are the contents of the foramen ovale?
the mandibular division of the trigeminal nerve (Vc) and the lesser petrosal branch of the glossopharyngeal nerve
What contents of the foramen spinosum?
the nervus spinosum from the mandibular division of the trigeminal nerve and the middle meningeal artery
What are the contents of the internal acoustic meatus?
cranial nerves VII (facial nerve) and VIII (vestibulocochlear/auditory nerve), the nervus intermedius/nerve of Wrisberg/sensory root of VII and the motor root of VII, the vestibular and cochlear roots of VIII and the internal auditory/internal labyrinthine artery and vein
What are the contents of the jugular foramen?
the jugular bulb, the inferior petrosal sinus, the tympanic body/tympanic glomus or jugular body/jugular glomus, cranial nerves IX (glossopharyngeal), X (vagus) and XI (spinal accessory)
What can the five layers of the scalp spell?
Skin, Connective tissue, Aponeurosis, Loose connective tissue, Periosteum (SCALP)
What are the principal sources of blood to the scalp?
internal carotid and external carotid artery branches
Which division of the trigeminal nerve receive sensory information from the scalp?
all 3 divisions: ophthalmic nerve, maxillary nerve & mandibular nerve
Which ventral rami branches supply the scalp?
greater auricular and lesser occipital nerves
Which dorsal ramus nerve branch (name and cord level of origin) supplies the scalp?
greater occipital nerve - C2, C3 communicating ramus
What are the four subclassifications of synarthrosis joints based on Latin groupings?
suture, gomphosis, schindylesis and syndesmosis
What forms the roof of the posterior cranial fossa?
the tentorium cerebelli
What part of the cerebellum occupies the posterior cranial fossa?
none; the tentorium cerebelli separates the cerebrum into a space above the posterior cranial fossa
What part of the central nerve system occupies the posterior cranial fossa?
the cerebellum, pons, and medulla oblongata
