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Anatomy Chapter 5
Terms in this set (56)
What is the tissue mostly found in the long bones of the embryo?
What is a fossa?
A basin-like depression in a bone
The ankle bones are considered what?
What increases when blood levels of calcium drop below normal?
Osteoclast activity and parathyroid hormone secretion increases
Osteocytes receive nutrition from blood vessels through passageways called what?
The patella is what kind of bone?
A sesmoid bone and a short bone
What shape are short bones?
What makes up the axial skeleton?
The ribs, skull, sternum, and vertebral column
What are the most important minerals stored in bone?
Calcium and Phosphorus
Osteocytes can be found where?
In the lacunae
What does yellow marrow do?
What does red marrow do?
Makes blood cells (hematopoesis)
The canal that runs through each osteon contains what?
Blood vessels and nerve fibers
The presence of an epiphyseal plate means what?
That the bone is lengthening
The epiphyseal line means what?
That the bone has stopped growing
What connects the periosteum to the compact bone?
Vertebrae are considered what?
Why is the skull not all flat?
The zygomatic arch
What is not a paired bone?
The facial bone called the vomer
What fracture is common in osteoporotic bones?
A compression fracture
A simple fracture is what?
A fracture that does not break the skin
What is a compound fracture?
When the bone breaks through the skin
The ethmoid bone is part of what?
The middle nasal conchae
Where does the foremen magnum pass through?
The occipital bone
What bone forms from fibrous membranes?
The parietal bone
What connects the two parietal bones together?
The sagital suture
What is a comminuted fracture?
Where the broken bone is fragmented
Where is the mastoid process found?
On the temporal bone
What is the mastoid process?
A body landmark
How many stages are there in the healing of a bone?
Four- Hematoma, fibrocartilage callus, bony callus, permanent patch
Bone breaks into many fragments
Common in aged
Bone is crushed
Common in porous bones (i.e. osteoporotic bones)
Broken bone portion is pressed inward
Typical of skull fracture
Broken bone ends are forced into each other
Commonly occurs when one attempts to break a fall with outstretched arms
Ragged break occurs when excessive twisting forces are applied to a bone
Common sports fracture
Bone breaks incompletely much in the way a green twig breaks
Common in children, whose bones are more flexible than those of adults
What is an example of a cartilaginous joint?
The pubic symphysis
The greenstick fracture is most common in who?
What is the first stage in healing a bone fracture?
What suture connects the parietal bones to the occiput?
The lambdoid suture
What is a fissure?
A narrow slit-like opening
What can be a determining factor where the bone matrix is to be remodeled?
Where is the greater tubercle located?
On the humorous
What bones are irregular?
Vertebrae and hip
What is an example of a fibrous joint?
Why is the hyoid bone unique?
It does not articulate with any other bone
What are the two largest foot bones?
The talus and calcaneus
Which of the following is not a feature of the synovial joint?
Made up of fibrous cartilage
How many true ribs? How many floating? False?
What structure is found on the femur?
The interchondalar fossa
What permits slight degrees of movement?
What is the major portion of the vocal bone?
How many thoracic and lumbar vertebrae?
Thoracic- 7, Lumbar- 5
What is the order of the 5 reigions of the vertebral column?
Cervical, Thoracic, Lumbar, Sacral, Coxageal
What provides no movement?
What is the first cervical vertebrae?
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