Cartilage grows in two ways, appositional and interstitial. What is appositional growth?
A) growth at the epiphyseal plate
B) the secretion of new matrix against the external face of existing cartilage
C) along the edges only
D) the lengthening of hyaline cartilage
B) the secretion of new matrix against the external face of existing cartilage
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In the retina, the ________ cells are the second-order neurons of the visual pathway whose axons form the optic nerve.
Fill in the blank(s) with the appropriate word(s).
Which of the following is a lung disease marked by a reduced number of cilia, reduced motility of the remaining cilia, goblet cell hypertrophy and hypersecretion, and thick sputum?
A) Atelectasis B) Chronic bronchitis C) Emphysema D) Asthma E) Oat-cell carcinoma
The four nitrogenous bases found in DNA are:
What will be an ideal response?
Which of the following is not true of urobilinogen?
A. A low level in the urine could indicate decreased bile production. B. It is a breakdown product of bilirubin. C. A high level in the urine could indicate hemolytic anemia or cirrhosis of the liver. D. It gives urine its yellow color. E. All of these are true of urobilinogen.