Skel A Midterm Flashcards
How many bones does the human skeleton have?
206
Axial skeleton has how many bones?
74
Vertebral column has how many bones?
26
Ribs how many bone?
25
Hyoid bone - how many?
1
Appendicular has how many bones?
126
Auditory ossicles has how many bones?
6
Mesodermally derived tissue stems from what cells?
Mesenchymal stem cells
Malignant tumors from mesoderm are ______
Sarcomas
Malignant tumors from ectoderm are ______
carcinoma
Area of 1 ossification
Diaphysis (center of shaft)
Area of 2 ossifications
Epiphyseal/metapyseal (ends)
_________ separate during growth, then joins in adults. Which part of the bone?
Epiphysis
What is the “Physis”?
Growth plate / epiphyseal end plate
What is the Apophysis?
List two examples
Attachment sites for ligaments/tendons on sides of bone
Examples: trochanter/epicondyle
How many ossification centers does metatarsals, metacarpals and phalanges have?
Only have one 2 ossification center
Certified radiology technologists
Certified individuals trained in radiology technology. Usually have a minimum of two years technical training/ Their primary responsibility is x-ray production. no diagnostic interpretation
General Practitioners (MD, DC, DO, DPM, DDS)
primary professional degree individuals, whoa re granted by state statue the ability to utilize ionizing radiation for diagnostic purposes. Can provide X-ray production, and diagnose, also carry the liability for diagnostic interpretation
Radiologists
Primary professional degree - same as a general practitioners - also have residency - produce X-ray, and primary purpose is to provide interpretation of diagnostic conclusion and carry liability - higher level of function than that of general practitioners
Characteristics of the Cortex of bone
Calcium store
Major strength area
The thickness of bone is (directly/inversely) proportional to the cortex?
Inversely - thinnest part of the bone - has the most cortex - thickest part of the bone - has the last amount of cortex
Medullary cavity Characteristics
spongy, porous, houses bone marrow in axial skeleton of adults
___% of bone metastasis is within the axial skeleton, because of red bone marrow.
90%
Periosteum
External cortical surface
Endosteum
internal cortical surface - where trabecular bone and cortex meet
