You are viewing an organ of the respiratory system and note the following tissues: folded mucosal layer containing simple cuboidal epithelium and smooth muscle. Identify the organ
A) Respiratory bronchiole
B) Terminal bronchiole
C) Alveolar duct
D) Alveolus
Answer: A
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Substances larger than ________ are normally not allowed to pass through the filtration membrane
A) sodium ions B) glucose C) albumin D) amino acids E) urea
Which statement accurately describes amino acids?
?A. There are twenty varieties, with each type having a different R group. ?B. There are twenty varieties, with each type having a different C-terminal end. ?C. There are over 200 varieties, with each type having a different R group. ?D. There are over 200 varieties, with each type having a different C-terminal end.
Cytology is a subdivision of gross anatomy.
Answer the following statement true (T) or false (F)
Flexor muscles generally pull on bone and decrease the angle at a joint, whereas extensor muscles push the bone to increase the angle
Indicate whether the statement is true or false.