lecture_13 - Invertebrate olfactory systems Fig. 7.9/ 6.9...

Info iconThis preview shows pages 1–14. Sign up to view the full content.

View Full Document Right Arrow Icon
Chemoreception Olfaction (smell) Gustation (taste)
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Signal transduction in odorant receptors Odorant receptor proteins are G-protein coupled receptors (see also Fig. 7.7/ 6.7) Fig. 4.19/ 3.25
Background image of page 2
Signal transduction in taste receptor cells Detection of salty tastes involves sodium channels Detection of sour tastes may involve blocking of ion channels Detection of sweet, umami and bitter tastes involve G-protein coupled receptors See also Fig. 7.11/ 6.11
Background image of page 3

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Signal transduction in taste receptor cells Fig. 7.11/ 6.11
Background image of page 4
Signal transduction in taste receptor cells Lipids Spicy tastes
Background image of page 5

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Coding of gustatory vs. olfactory signals in vertebrates Each olfactory receptor cell expresses one type of receptor protein Each gustatory receptor cell expresses more than one type of receptor protein Olfactory receptor cells are sensory neurons Gustatory receptor cells are epithelial cells Gustatory reception doesn’t always use G protein coupled receptors
Background image of page 6
Background image of page 7

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Background image of page 8
Background image of page 9

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Background image of page 10
Background image of page 11

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Background image of page 12
Background image of page 13

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Background image of page 14
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: Invertebrate olfactory systems Fig. 7.9/ 6.9 and gustatory Mechanoreception Mechanically-gated channels Tactile receptors Mechanoreception Tactile receptors Proprioceptors Acoustic receptors Balance/movement receptors Baroreceptors Fig. 3.26/ 2.49 Mechanically-gated channels Epithelial sodium channels (ENaC) Transient receptor protein (TRP) Fig. 7.12/ 6.12 Invertebrate mechanoreceptor structures Fig. 7.9/ 6.9 Fig. 7.13a/ 6.14 Invertebrate mechanoreceptor structures Fig. 7.14/ 6.15 e.g., tympanal organs Vertebrate tactile receptors Fig. 7.15/ 6.13 tactile receptors are not grouped into organs, but instead are found as isolated cells Vertebrate proprioreceptors Fig. 7.5/ 6.5 Muscle spindles en.wikipedia.org/wiki/Pinocchio_illusi on Golgi tendon organs Joint capsule receptors Proprioreceptors do not adapt (much)...
View Full Document

Page1 / 14

lecture_13 - Invertebrate olfactory systems Fig. 7.9/ 6.9...

This preview shows document pages 1 - 14. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online