Microscopy & Histology Seminar Notes Lab 1 PDF

Microscopy & Histology Seminar Notes: Lab 1 Question 1) Give the total magnification when you use (Leica scope objective lenses): Low power: 4 x 10 = 40 Medium power: 10 x 10 = 100 High power: 40 x 10 = 400 Question...

Microscopy & Histology Seminar Notes: Lab 1 Question 1) Give the total magnification when you use (Leica scope objective lenses): Low power: 4 x 10 = 40 Medium power: 10 x 10 = 100 High power: 40 x 10 = 400 Question 2) Give the metric units for: a) The weight of 1 cubic centimeter of water at its maximum density 1 cm3 = 1 mL of water = 1 gram b) The temperature at which water freezes 0 degrees Celsius c) The unit of volume equal to 0.0001 cubic meter 1 L = 0.001 m3 (1 L/0.001 m3) x 0.0001 m3 = 0.1 L or 100 mL Question 3) Use dimensional analysis to calculate the equivalent values: 100 mL is 1 dL 0.10 mL is 100 μL 0.1 mL is 0.001 dL 0.01 mL is 0.00001 L Questions 4) & 5) Define the term tissue: A collection of cells performing a similar function Define the term organ: A collection of multiple primary tissues that perform a specific function Question 6) Compare and contrast the structure and function of cardiac & skeletal muscle: Cardiac muscle: Characterized by striated fibers (i.e. cells) that are branched & interconnected by intercalated discs Skeletal muscle: Characterized by striated fibers, are individual, & have numerous nuclei Question 7) What type of muscle fibers (smooth, skeletal, or cardiac) are found in the walls of blood vessels? → Smooth muscle Questions 8) and 9) Blood vessels & nerves are found in connective tissues, but not in epithelial membranes. Why? Epithelial membranes are protective membranes lining skin surface, digestive tract, blood vessels, etc. We do not want nerve cells or blood vessels at the surface of protective membranes. Would you expect strands of connective tissue within the pancreas & liver? Why? Yes, because they are organs and as such include various tissue types including connective tissue.