GH 125 A&P Chapters 8 and 9 Exam
Questions and Answers 100% Solved
Bones - 4 types - ✔✔Long (femur, humerus) - covered in dense fibrous
tissue
Short (carpals, metacarpals, phalanges)
Flat (skull)
Irregular (vertebrae)
Parts of a long bone - ✔✔Diaphysis (shaft) yellow marrow, fat stores
Epiphysis (2 ends) red marrow, red blood cell production, responsible for
bone growth
Bone Structure - ✔✔Focus on: Epiphysis, diaphysis, epiphyseal line
Articular cartilage
Cancellous bone (spongy)
Red marrow and yellow marrow cavities
Compact bone
Medullary cavity
Endosteum and Periosteum
, ©NINJANERD 2024/2025. YEAR PUBLISHED 2024.
Formation of bone - ✔✔Cartilage present before birth, calcify as they turn
into bone after birth
Osteoblasts - bone forming cells
Osteocytes - surround osteoblasts to make new bone
Osteoclasts - breakdowns existing bone for new bone growth
Cartilage - ✔✔Chondrocytes (cartilage cells)
Lack blood vessels
Heals slowly
Fontanel (soft spot) on baby's skull
Suture Line - where skull bones meet and fuse
Bones - ✔✔Skeleton: refer to figure 8-9, p. 182
Facial bones - ✔✔Focus on:
Mandible (lower jaw): moveable
Maxilla (upper jaw): non-moveable
Both have teeth
Sella turcica - ✔✔Cavity in the skull "small seat" that contains the pituitary
gland
Spine - ✔✔Cervical (7)
Thoracic (12)