RN Musculoskeletal system

RN Musculoskeletal system EAQ 2022
axial skeleton - ANSWER: skull , spine and ribcage

appendicular skeleton - ANSWER: limb bones , including pectoral and pelvic

how many bones in the adult human? - ANSWER: 206

structural function of bones - ANSWER: protection, support, levers

physiological function of bones - ANSWER: blood cell production and calcium
reserves

what is bone composed of? - ANSWER: connective tissue, cells and extracellular
matrix

cells responsible for bone deposition - ANSWER: osteoblasts

cells responsible for bone resorption - ANSWER: osteoclasts

which layer is the axial skeleton derived from? - ANSWER: paraxial mesoderm

which layer is the appendicular skeleton derived from? - ANSWER: lateral plate
mesoderm

which layer is the craniofacial bones derived from? - ANSWER: neural crest

cells the deposit osteiod - ANSWER: osteoblasts

mature bone cells - ANSWER: osteocytes

hard, protective outer shell layer of bone - ANSWER: compact bone

inner spongy bone - ANSWER: cancellous or trabeculae

trabecular arrangement provides - ANSWER: strength with lightness

functional purpose of aligning bony trabeculae along lines of stress - ANSWER:
maximises strength, minimises weight

covering of compact bone - ANSWER: periosteum

shaft between proximal and distal ends of bone - ANSWER: medullary cavity

covering that lines within the medullary cavity - ANSWER: endosteum