BIOL227 Lab Exam #2; Questions and Answers 100% Correct
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Course
Bio 227
Institution
Bio 227
BIOL227 Lab Exam #2; Questions and Answers
100% Correct
206 Answer-How many bones are in the human body?
hyaline and fibrocartilage Answer-what types of cartilage are in the body
long, short, flat, irregular Answer-4 major groups of bone
long bones Answer-longer than they are wide (humerus)
...
BIOL227 Lab Exam #2; Questions and Answers
100% Correct
206 Answer-How many bones are in the human body?
hyaline and fibrocartilage Answer-what types of cartilage are in the body
long, short, flat, irregular Answer-4 major groups of bone
long bones Answer-longer than they are wide (humerus)
short bones Answer-cube shaped bones of the wrist and ankle
flat bones Answer-These bones are thin, flat, and curved. They form the ribs, breastbone,
and skull.
irregular bones Answer-vertebrae
bone markings Answer-reveal where muscles, tendons, and ligaments were attached and
where blood vessels and nerves passed
3 main categories: projections, articulations, depressions/ openings
Projection (bone marking) Answer-outward bulge of bone where where muscles and
ligaments attach
, BIOL227 Lab Exam #2; Questions and Answers
100% Correct
Articulating surfaces Answer-2 bones meet at a joint. These include Condyle, Facet, Head,
and Trochlea
depressions and openings Answer-allow the passage of blood vessels and nerves; form
joints
inorganic calcium salts, organic collagen fibers Answer-The hardness of bone comes from
__________, whereas __________ provide(s) some degree of flexibility.
osteoprogenitor cells Answer-stem cells derived from mesenchyme
osteoblast Answer-bone-forming cell
osteocyte Answer-a bone cell, formed when an osteoblast becomes embedded in the
matrix it has secreted.
osteoclast Answer-bone cell that absorbs and removes unwanted bony tissue
Ossification Answer-process of bone formation
, BIOL227 Lab Exam #2; Questions and Answers
100% Correct
endochondral ossification Answer-process in which bone forms by replacing hyaline
cartilage (bones inferior to skull)
intramembranous ossification Answer-process by which bone forms directly from
mesenchymal tissue (Produces flat bones of skull and clavicle)
epiphyseal plate/growth plate Answer-Where does new bone formation take place in
growing long bones?
5 zones of bone growth Answer-resting zone, proliferation zone, hypertrophic zone,
calcification zone, ossification zone
medullary cavity Answer-cavity within the shaft of the long bones filled with bone
marrow
proximal epiphysis Answer-end of the bone closest to the trunk of the body
distal epiphysis Answer-end of the bone farthest from the trunk of the body
Diaphysis Answer-shaft of a long bone
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