Compare the starts of intramembranous ossification and endochondral ossification
What will be an ideal response
Intramembranous ossification starts in connective tissue from mesenchymal cells that become osteoblasts. These osteoblasts cluster together into an ossification center. Endochondral ossification starts with a hyaline cartilage "template." Mesenchymal cells become osteoblasts and begin forming bone around the cartilage.
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Why would removal of the thymus compromise humoral immunity?
A. Helper T cells mature in the thymus and are needed to activate B cells and humoral immunity. B. B cells responsible for humoral immunity mature in the thymus. C. Once activated, B cells must travel to the thymus in order to produce antibodies. D. Most mature B cells reside in the thymus, so removing the thymus removes the majority of the body's B cells.
The material that covers our teeth is known as ____________________
Fill in the blank(s) with correct word
Which common over the counter drug can decrease blood clotting and thus may be beneficial for preventing a heart attack?
A) cough syrup B) anti-histamines C) aspirin D) acetaminophen E) tums
Which of the following statements regarding insulin is correct?
A) Insulin stimulates the conversion of glycogen to glucose. B) An increase in insulin levels causes an increase in blood glucose. C) Insulin is a pancreatic hormone that performs exocrine functions. D) Insulin is the only hormone that decreases blood glucose levels.