Flashcards in Arthrology of the anterior thorax Deck (70)
How many primary centers of ossification appear in the corpus sterni?
In what part of the sternum will a secondary enter of ossification appear?
the xiphoid process
In what part of the rib will primary centers of ossification appear?
the body (corpus, shaft)
In what parts of the rib will secondary centers of ossification appear?
the head, articular surface of the tubercle and the non-articular surface of the tubercle
Which ribs will demonstrate secondary centers of ossification?
Which rib lacks secondary centers of ossification?
ribs 11 and 12
Which ribs demonstrate three secondary centers of ossification?
Which ribs have only two secondary centers of ossification?
ribs 1 and 10
How does rib 1 differ in ossification centers from typical ribs?
rib 1 has two secondary centers of ossification: one for the head and one for the tubercle; typical ribs have three secondary centers of ossification
What are the four subclassifications of synarthrosis joints based on Latin grouping?
suture, gomphosis, schindylesis and syndesmosis
What were the five types of suture based on Latin grouping?
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?
What were the classifications of sutura notha (false sutures) based on Latin grouping?
squamous and harmonia
What re the typical examples of the plane suture or harmonia suture?
cruciate suture made up of the intermaxillary, interpalatine and palto-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 tooth
What are the five views of the skull called?
norma verticalis, norma fronta;is, 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 norma frontalis?
the skull is viewed from the front
What is the name given to the outline of the nasal cavity at the front of the skull?
What is the name given to the alveolar jugum of the canine tooth in the maxilla?
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 is the appearance of suture intersections just above the zygomatic arch called?
what bones form the pterion?
parietal, temporal, sphenoid and frontal
What points on the skull re used to measure the skull size?
the nasion, vertex, inion and gnathion