Details

Title: !Fishes 2

Description: Sensory Perception: Structure and function of mechanoreception system:Lateral line and free neuromasts

Total Flash Cards: 7

Created: 11/10/2009 21:18:23

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Cards in this set:

Term
free neuromasts
 Definition
all fishes have some, some hidden away at canal system
Term
structure of lateral line canal
 Definition
canal pores open to environment; neuromasts lie b/w pores; canal full of endolymph; movement of lymph stiumulates neuromast
Term
pattern of canal
 Definition
on head and body; extent of canal indicates activity level: more active, more neutomasts sequestered in canal rather than free
Term
function of canal
 Definition
sensitive over low frequencies: obstacle detection and feeding(localization of food, sensing predatory attack); trunk lateral line important in coordinating school behavior;
Term
lateral line extensivemenss over body functions:
 Definition
partly to localize stimuli; system can compare signal strength from diff parts of canal, function called "distant touch"
Term
kinocilium
 Definition
long, serves as trigger
Term
stereocilia
 Definition
short, graded, serve to send nervous signals