Name and briefly describe the different categories of epithelial tissues based on cell shape and number of layers of cells found in the tissue
What will be an ideal response?
Based on cell shape, epithelial tissues can be divided into four categories including: 1)squamous which are thin and flat, 2)cuboidal which are similar in width and height, 3)columnar are taller than they are wide and 4)transitional which can change shape from cuboidal to squamous and back again. Epithelial tissues can also be categorized based on the number of layers of cells found in the tissue. These categories include: 1)simple which means a single layer of cells, 2)stratified which is two or more layers of cells and 3)pseudostratified which is one layer of cells that appears multi-layered due to the arrangement of the nuclei in the cells.
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Which of the following structures contain osteocytes?
a) central (Haversian) canals b) perforating (Volkmann's) canals c) concentric lamellae d) lacunae e) canaliculi
) All chemical reactions are theoretically reversible. Comment on this statement.
What will be an ideal response?
Acetylcholinesterase, monoamine oxidase (MAO), and catechol-O-methyltransferase are
A) neurotransmitters. B) enzymes that break down neurotransmitters. C) enzymes that act as neuromodulators. D) enzymes that could produce an EPSP. E) substances that could produce an IPSP.
The type of burn that may require a skin graft is a:
A) first-degree burn. B) second-degree burn. C) third-degree burn. D) partial-thickness burn.