senses Flashcards
what are the 5 types of sensory receptors
mechanoreceptors
chemorecptors
electromegnetic receptors
thermoreceptors
pain receptors
what does a mechanoreceptors do
sense physical deformation and muscle movement
what do chemoreceptors do
transmit information about the total solute concentration of a solution
what do electromagnetic receptors do
detect electromagnetic energy such as light and electricity
what do thermoreceptors do
responds to hot or cold to help regulate body temperature
what do pain receptors do
detect stimuli that reflect on harmful things
what is the definition of senses
‘sense’ is any system that consists of a group of sensory cell types that respond to a specific physical phenomenon, and that corresponds to a particular group of regions within the brain where the signals are received and interpreted
what is the role of the middle of the ear
vibrating objects create percussion waves in the air that cause the tympanic membrane to vibrate
what happens to the vibrations in cochlea
create pressure waves in the fluid in the cochlea that travel through the canal
what are the functions of cochlea
amplification of sound vibrations
what is the role of the inner ear
to detect body movement, position and balance
umami perception would be stimulated by what chemical
glutamate
how do animals discriminate between different odours?
by using their nose which is responsible for smell.
smell receptors interact with the molecules of vapors and transmit to different areas of the brain
name the receptor where cells are neurons that line the upper portion of the nasal cavity
olfactory receptor
what happens when binding the odorant molecules to receptors
triggers a signal transduction pathway, sending action potentials to the brain