Week 5 Flashcards
What are the general features of a sensory curve
- sinusoidal sensitivity curve
- band width formation
what is implied by a sinusoidal sensitivity curve
- there is a threshold of sent
- there is some amount of stimulus that does not illicit a response
- one receptor will likely be sensitive to multiple sinusoidal waves to better integrate information
what is mechanosensation
bristle in a fruit fly. each bristle has its own sensory neuron located in dorsal thorax.
for mechanosensation: one ____________ will result in stimulus depolarization. Within the socket you can move the bristle around.
direction of movement
There is a _________ for the bend of a bristle
threshold
_________________ are covered in fine bristles to detected the flow of oncoming objects
sensory appendages
these motor neurons are high selective in the direction of flight and ____________
even two different animals, the spatial code is relatively similar
_____________ are specialized hair cell Celia that are sensitive to a bend in a specific direction
kinocellium
what are the steps of kinocellium sensation
- stimulus movement -> membrane voltage
- changes in membrane voltage follow the sensory stimulus
- tonic response as a result of changes in Vm
Echolocation:
there is a gap for ultrasound sensory channel used in echolocation. this is called _______________. Multiple bands overlap
band width formation
Parasite fly:
a fly is parasitized the cricket because it can hear the cricket tune because ______________ this called _____________
the ear of the fly is tuned to the cricket
signal receive coevolution
a fungus takes over an ant in order to let it __________
reproduce
Olfaction:
animals have antenna that house ____________. with yellow _________ to amplify sensation on the bristle
olfactory organs
mucus
hair cells detect sensation via complex action potentials in order to produce ___________
sensation
*this allows for a complex response to pulses of odor
carried out by 7 transmembrane proteins> GPCR. A second messenger.
2 order activate different signal cascades indicating high complexity
each antenna has one receptor for each glomerulus. All receptors if a given type go to one _____________
glomerulus
each receptor in the antenna Has a different ________________
ligand
There is a calcium activation in sensory receptors of the antennal love
antenna, intact, puffs of orders
attractiveness to a sent is determined by the number of
glomerulus activated
too many glomeruli results in an
unpleasant odor
__________ fish use backwards hair cells to send and measure current in the water.
electroreception
platifi also use electroreception by
using their bill to detect electric current of prey.
many species of fish use electric current to communicate with one another
receptor areas: modified hard cell, no cilia
generator: located in the tail of the fish. It is composed of a motor neuron and membrane
the electric field is the strongest near the __________
electric organ
