Unit 15, The Head (Final exam) Flashcards
What part of the skull is derived from endochondral ossification?
Chondrocranium
Which skull bones are ossified by both endochondral and intramembranous ossification?
1) Mandible
2) Sphenoid
3) Temporal
4) Occipital
Which bone of the appendicular skeleton is formed by both endochondral and intramembranous ossification?
Clavicle
What are the four subclassifications of synarthrosis joints based on Latin groupings?
1) Suture
2) Gomphosis
3) Schindylesis
4) Syndesmosis
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.
What is the classification of a joint with a “fissure-like” condition?
Schindylesis
What is the classification of a joint with a “nail-like” condition?
Gomphosis
What is the name given to the indention of bone between the nasal and frontal bones?
Nasion
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 aveolar 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?
The INION
What is the appearance of suture intersections just above the zygomatic arch called?
The Pterion
What is the appearance of suture intersections just above the mastoid process called?
The Asterion
What points on the skull are used to measure the skull size?
1) Nasion
2) Vertex
3) Inion
4) Gnathion
What points on the skull are used to measure cranial vault capacity?
1) Nasion
2) Vertex
3) Inion