Exam 2: BIO210 / BIO 210 (Latest
2024 / 2025 Update) Anatomy and Physiology for Science Majors I Exam | Questions and Verified Answers | 100% Correct | Grade A - GCU
Question:
hypocalcemia
Answer:
deficiency of calcium in the blood stream, excitability
Question:
hypercalcemia
Answer:
excess calcium in the blood stream, sluggishness
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Question:
Calcitriol (Activated Vitamin D)
Answer:
converted in the kidney to help reabsorb calcium in the blood stream
Question:
calcitonin
Answer:
thyroid hormone that lowers calcium levels in the blood stream
Question:
parathyroid hormone
Answer:
increases blood calcium levels
Question:
correcting hypercalcemia
Answer:
calcitonin is released from the thyroid which reduces osteoclasts and kidney absorption
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Question:
correcting hypocalcemia
Answer:
PTH is released to stimulate osteoclasts and calcitriol in order to reabsorb calcium in diet
Question:
osteoporosis
Answer:
bones become weakened due to loss of estrogen and bone matrix/minerals
Question:
osteogenesis
Answer:
bone formation
Question:
ossification
Answer:
converts osteoid matrix to bone by calcification
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Question:
intramembranous ossification
Answer:
occurs in dermis to produce flat bones of skull, face, clavicle
Question:
intramembranous ossification steps
Answer:
mesenchymal cells replicate, spicules are projected, trap blood vessels, spongy bone is made and remodeled
Question:
endochondral ossification
Answer:
ossifies bone that originates as hyaline cartilage
Question:
steps of endochondral ossification
Answer:
chondrocytes die, blood vessels produce compact bone, spongy bone at primary ossification center, medullary cavity is produced and replaces cartilage, capillaries and osteoblasts create a secondary ossification center, epiphyses fill with spongy bone, articular cartilage and epiphyseal cartilage
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