BIO 210 EXAM PREPARATION QUESTION BANK 2026 SOLUTIONS UPDATED A+

BIO 210 EXAM PREPARATION QUESTION
BANK 2026 SOLUTIONS UPDATED A+

◉ Periosteum.
Answer: white double layered membrane covering the external bone
surface


◉ 2 layers of periosteum.
Answer: Fibrous Layer - Outer layer dense irregular CT
Osteogenic Layer - Inner layer containing osteoblasts (which secrete
bone matrix, Osteoclast (bone destroying cells) and Osteogenic stem
cells (give rise to osteoblasts)


◉ Lamella.
Answer: Each individual Matrix tube


◉ Osteon.
Answer: the structural and functional unit of compact bone


◉ Canaliculi.
Answer: connect all the osteocytes together to deliver nutrients

, ◉ Intramembranous ossification.
Answer: forms the cranial bones of the skull. Bones develop from
fibrous membranes


◉ endochondral ossification.
Answer: forms all bones of the skeleton below the base of the skull
bones except the clavicles. They develop form cartilage


◉ PTH.
Answer: activates osteoclasts - breaks down to raise blood calcium
levels


◉ Calcitonin.
Answer: helps to lower blood calcium levels by having bones
reabsorb calcium


◉ The skeleton.
Answer: 206 bones divided into 2 groups


◉ Axial.
Answer: Includes bones of the skull, vertebral column and rib cage


◉ Appendicular.