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BIOLOGY 210 - Scanning Electron Microscopy

[Go to semester: Fall 2002, Fall 2003, Spring 2005, Spring 2006]

The scanning electron microscope (SEM) is used to teach principles of electron optics and digital imaging for the study of surface morphology and microstructure of materials. The following micrographs were captured by students in BIOL 210.

(below, left) Cleavage in a sample of citrine, a semi-precious stone. (Adam Hill '08)
(below, right) The same sample at a higher magnification. (Adam Hill '08)

(below, left) Lumenal surface of murine intestine. (Cameron McGuire '07)
(below, right) A lateral view of murine intestine, showing villus structure from base to tip. (Laurie Littlefield IDP)

(below, left) Specialized, dome-shaped Clara cells are visible in this micrograph of murine lung. (Cameron McGuire '07)
(below, right) Red blood cell in murine lung. (Ravin Ratan '05)
(lower)
Red blood cells among cilia and Clara cells in a sample of murine lung tissue. (Siobhan Knight '07)

(below, left) A posterior view of an aphid on leaf tissue. (Mike Caputo '06)
(below, right) The compound eye of an aphid. (Mike Caputo '06)

(below, left) A branching blood vessel found in a murine liver sample. (Siobhan Knight '07)
(below, right) Peering down a bile ductule in murine liver. (Alison Parpal '08)

(below, left) The aperature of an earthworm. (Ravin Ratan '05)
(below, right) A view of a fish gill. (Laurie Littlefield IDP)
(lower)
Trichomes protruding from the surface of an ageratum leaf. The strand in the upper left is a fungus. (Alison Parpal '08)