Exam 1 ?'s Flashcards
Bone is also the repository for what additional ions?
Sodium Strontium Radium Magnesium Fluoride Lead
What three responses of “living” bone were stressed in class?
It has the ability to heal, to remodel under stressors such as anxiety, tension or pressure and to age
Which bone of the appendicular skeleton is formed by both endochondral and intramembranous ossification?
The clavicle
Difference in the number or morphology of vertebrae within the population on male and female variation is identified as which type of variation?
Sexual dimorphism or gender variation
Differences in the number or morphology of vertebrae within the population based on age or developmental variation is identified as which type of variation?
Ontogenetic variation
Differences in the number or morphology of vertebrae within he population based on ethnicities or locational variation is identified as which type of variation?
Geographic variation or population based variation
Differences in the number or morphology of vertebrae within the population based on the uniqueness between individuals is identified as which type of variation?
Idiosyncratic variation
What is the name given to bone formed from existing bone?
Accessory bone
What is the name given to bone formed in a non-bone location?
Heterotopic bone
What is the name given to an optimum which does not completely penetrate through a region of bone but appears as a blind-ended passageway?
Meatus
How many bones form the typical adult appendicular skeleton?
126
How many bones form the typical adult axial skeleton?
80
How many boners form the typical adult neurocranium?
8
How many bones form the facial skeleton (splanchnocranium or visceral skeleton)?
14 bones
What is the number of vertebrae in the typical adult?
26 segments
What is the number of vertebrae in the typical spine?
24 segments
What is the length of atypical male spinal column?
About 70 cm or 28”
What is length of a typical female spinal column?
60 cm or 25”
What is the length of the male lumbar region (both measurements)?
About 18 cm or 7”
What organ(s) is (are) specifically associated wit the horizontal axis of the skill?
The eye and the vestibular apparatus of the inner ear
Migration of sclerotomes to surround the notochord forms what developmental feature?
The perichordal blastema
What is the name of the artery located between adjacent perichordal blastema?
Intersegmental artery
Cell proliferation within the perichordal blastema will result in what feature?
A loose cranial sclerotomite and a dense caudal sclerotomite
What forms between the sclerotomite of a perichordal blastema?
The intrasclerotomal fissure (fissure of Von Ebner)
What are the names of the primary centers of ossification for a typical vertebra?
Centrum centers and neural arch centers
What is the classification of the joint forming between secondary centers of ossification and the rest of the typical vertebra?
Cartilage synchondrosis/ ampiarthrosis synchondrosis
What are the names of the sunchondoses forming between secondary centers of ossification and the rest of the typical veterbra?
Tip of the transverse process synchondrosis
Tip of the spinous process synchondrosis
Epiphyseal ring synchondrosis
What will cause the transverse process/ transverse apophysis to alter its intitial direction in the cervical region?
Cervical spinal nerves are pulled forward and downward to form the cervical and brachial nerve plexuses thus remodeling the transverse process to accommodate their new position
What will cause the transverse/ transverse apophysis to alter its initial direction in the thoracic region?
The growth of the lungs remodel the shape of the ribs which in turn push the transverse processes backwards
In the vertebral couple, the part of the vertebra which lies anterior to the zygapophysis is called the _______?
Pre-zygapophysis