Giardia lamblia (continued)
SIZE: 9 to20 mcm.
SHAPE : Pear-shape; sucking disc; "Wry little face."
DORSAL SURFACE: Convex.
VENTRAL SURFACE: Concave.
KINETOSOMES: Give rise to the flagella; located between the anterior portion of
AXONEMES: Interior portion of the flagella; transverse the cytoplasm before
emerging; the two caudal axonemes divide the body longitudinally
MEDIUM BODIES: Large curved, dark-stained.
FUNCTION: Unknown; support or energy production.
PREVIOUS IDEOLOGY: Parabasal bodies, kinetoplasts, or chromatoid
AXOSTYLES: There are none; what was believed to be axostyles are structures
formed by the axonemes of the ventral flagella and the associated
groups of microtubules.
MOBILITY: Like a falling leaf.
Figure 1-22. Stages of G. lamblia (continued).