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FREE AND STUDY GAMES ABOUT BONES CHPT 6 EXAM
QUESTIONS
Actual Qs and Ans Expert-Verified Explanation
This Exam contains:
-Guarantee passing score -162 Questions and Answers -format set of multiple-choice -Expert-Verified Explanation
Question 1: Interstitial Growth
Answer:
Growth from the inside..chondrocytes within the cartilage divide and secrete new matrix
Question 2: Why are bones continually remodeled?
Answer:
1) bone remodeling helps to maintain constant concentraions of calcium and phosphate ions in body fluids 2) bone is remodeled in response to the mechanical stress it experience
Question 3: explain a Spiral fracture
Answer:
ragged reak occurs whene xcessive twisting forces are applied to a bone; common in sports
Question 4: How are bones classified?
Answer:
Long bones, short bones, flat bones, and irregular bones
Question 5: What is a osteogenic cell?
Answer:
stem cells that differentiate into bone-forming osteoblasts
Question 6: Projections that are sites of muscle and ligament attachment
Answer:
Tuberosity, Crest, Trochanter, Line, Tubercle, Epincondyle, Spine, Process
Question 7: define Hypertrophic Zone
Answer:
found in the epiphyseal plate, Older cartilage cells enlarge and signal the surrounding matrix to calcify
Question 8: explain an Epiphyseal fracture
Answer:
Epiphysis separates from the diaphysis along the epiphyseal plate, tends to occur where cartilage cells are dying and calcification of the matrix is occurring
Question 9: Which bones of the skeleton are membrane bones?
Answer:
Most bones of the skull, except for parts of the base of the skull and the clavicle, are membrane bones.
Question 10: define Calcification Zone
Answer:
found in the epiphyseal plate, Matrix becomes calcified; cartilage cells die; matrix begins deteriorating
Question 11: Process
Answer:
Any bony prominence Question 12: Where are tension and compression strongest? How does bone resist these stresses?
Answer:
external bone surfaces strong compact bone is found on the external portion of the bone
Question 13: Neatus
Answer:
Canal-like passageway Question 14: Hyaline cartilage...Elastic Cartilage....Fibrocartilage? the embryonic skeleton
Answer:
hyaline cartilage
Question 15: What are the inorganic components of bone?
Answer:
mineral salts that invade the bony matrix, making bone tissue hard
Question 16: What is a trabecula? Hos is it different from an osteon?
Answer:
Oxygen and nutrients diffuse thorugh the spaces in the matrix, the canaliculi and lacunae of the inner lamellae, to reach the cells in the otermost lamella.
Question 17: explain a Greenstick fracture
Answer:
Bone breaks incompletely, much in the way a green twig breaks. Only one side of the shaft breaks; the other side bends; common in children, whose bones have relatively more organix matrix and are more flexible than adults.
Question 18: Spine
Answer:
Sharp, slender, often pointed projection
Question 19: define Osteoporosis
Answer:
characterized by low bone mass and a deterioration of the microscopic architecture of the bony skeleton...bone resorption outpaces bone deposition
Question 20: define Bone deposition
Answer:
accomplished by osteoblasts..
Question 21: Line
Answer:
narrow ridge of bone; less prominent than a crest Question 22: At what age do boens begin to ossify? at what ae does bone mass begin to decline?
Answer:
Bones begin to ossify by week 8 of embryonic development. Bone mass starts to decline around age 40.
Question 23: What are the 4 type of cells found in bone tissue?
Answer:
Osteogenic cells, osteoblasts, osteocytes, osteoclast
Question 24: define Rickets
Answer:
analogous disease in children, bowed legs, malformations of child's head and rib cage common, caused by inadequate mounts of vitamin D or calcium in the diet Question 25: Hyaline cartilage....Elastic cartilage...Fibrocartilage? the menisci in the knee
Answer:
fibrocartilage Question 26: In a flat bone, where is compact bone located? Where is spongy bone located?
Answer:
Compact bone is located on the enternal surfaces, and spongy bone is located internally
Question 27: define Intramembranous Ossification Process
Answer:
membrane bones that form directly form mesencyme without first being modeled in cartilage example: all bones of the skull except a few at the base of the skull
Question 28: Head
Answer:
Bony expansion carried on a narrow neck