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1. Long Bone Bone that is longer than it is wide
2. Diaphysis Middle of the bone. Covered with Periosteum tissue.
3. Epiphysis Ends of bone. Contains spongy bone.
4. Spongy Bone End of bone that is made up of individual struts. Organized to deal with
force.
Contains collagen and hydroxyapatite.
5. Medullary Cavity Center of bone. Hollow and filled with yellow marrow. Contains Compa
Bone
6. Compact Bone In between epiphysis and medullary cavity. Surround by periosteum.
Contains
osteons and osteocytes.
7. Osteons Main part of compact bone. Contain canals that hold blood vessels and
nerve
8. Osteocytes Cells that secrete hydroxyapatite. Surrounded by collagen filaments to
absorb
compressive and lateral forces.
9. Hydroxyapatite Calcium phosphate
10. Growth Plate In between epiphysis and diaphysis. Contains chondrocytes that divide
and
move towards epiphysis.
11. Osteoclast Breaks bone with ruffling membrane. Pumps hydrogen ions into space
lower
pH. Uses aced to dissociate calcium phosphate into calcium ions
12. Endocrine System Cellular secretion of hormones. Uses receptors for response.
13. Exocrine System Uses secretion through ducts
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,BMS 300 Exam 1 questions and answers rated A+
2025/2026 latest update
14. Autocrine Cell communication with own self
15. Paracrine Cell communication with neighboring cells
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