PSIO 201--Exam 2-- University of
Arizona Exam 2026 Questions and
Answers
Bone Types - Correct answer-Long, Short, Flat, Irregular, Sesamoid, Sutural,
Pneumatized
Periosteum - Correct answer-Covers external surface of bone
Endosteum - Correct answer-Lines inner surface of bone, contains osteogenic cells
Why is bone considered an organ? - Correct answer-It contains osseous
(connective) tissue, blood vessels, nerves, lymphatic vessels, cartilage, and
connective tissue coverings
Osteogenic Cells - Correct answer-Stem cells formed from mesenchyme
(embryonic connective tissue)
Osteoblasts - Correct answer-Build bone
Osteocytes - Correct answer-Maintenance of bone
Osteoclasts - Correct answer-Break down bone
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, Bone Modeling - Correct answer-Bone formed by osteoblasts without prior bone
resorption
Bone Remodeling - Correct answer-Bone resorbed by osteoclasts and then formed
by osteoblasts
Cartilage Tissue - Correct answer-Chondrocytes; gel-like substance containing
proteoglycan, elastic, collagen, or reticular fibers
Bone Tissue - Correct answer-Osteocytes; solid ground substance containing
proteoglycans, collagen elastic fibers, hydroxyapatite
Collagen - Correct answer-Provides flexibility & resistance to tension
Minerals - Correct answer-Provide firmness (resistance to compression)
Rickets (Inorganic) - Correct answer-Calcium deficiency due to lack of vitamin D
leads to flexible bones (bowed legs)
Scurvy (Organic) - Correct answer-Vitamin C deficiency impairs collagen
synthesis and leads to brittle bones
Sponge Bone Organization - Correct answer-Irregular lattice of thin plates called
trabeculae; Osteocytes house in lacunae
Spongy Bone Location - Correct answer-Epiphyses of long bones; surrounding
marrow cavities; flat, short, irregular bones
©COPYRIGHT 2025, ALL RIGHTS RESERVED 2
Arizona Exam 2026 Questions and
Answers
Bone Types - Correct answer-Long, Short, Flat, Irregular, Sesamoid, Sutural,
Pneumatized
Periosteum - Correct answer-Covers external surface of bone
Endosteum - Correct answer-Lines inner surface of bone, contains osteogenic cells
Why is bone considered an organ? - Correct answer-It contains osseous
(connective) tissue, blood vessels, nerves, lymphatic vessels, cartilage, and
connective tissue coverings
Osteogenic Cells - Correct answer-Stem cells formed from mesenchyme
(embryonic connective tissue)
Osteoblasts - Correct answer-Build bone
Osteocytes - Correct answer-Maintenance of bone
Osteoclasts - Correct answer-Break down bone
©COPYRIGHT 2025, ALL RIGHTS RESERVED 1
, Bone Modeling - Correct answer-Bone formed by osteoblasts without prior bone
resorption
Bone Remodeling - Correct answer-Bone resorbed by osteoclasts and then formed
by osteoblasts
Cartilage Tissue - Correct answer-Chondrocytes; gel-like substance containing
proteoglycan, elastic, collagen, or reticular fibers
Bone Tissue - Correct answer-Osteocytes; solid ground substance containing
proteoglycans, collagen elastic fibers, hydroxyapatite
Collagen - Correct answer-Provides flexibility & resistance to tension
Minerals - Correct answer-Provide firmness (resistance to compression)
Rickets (Inorganic) - Correct answer-Calcium deficiency due to lack of vitamin D
leads to flexible bones (bowed legs)
Scurvy (Organic) - Correct answer-Vitamin C deficiency impairs collagen
synthesis and leads to brittle bones
Sponge Bone Organization - Correct answer-Irregular lattice of thin plates called
trabeculae; Osteocytes house in lacunae
Spongy Bone Location - Correct answer-Epiphyses of long bones; surrounding
marrow cavities; flat, short, irregular bones
©COPYRIGHT 2025, ALL RIGHTS RESERVED 2
