1.(1 pt) Why is sensory adaptation to repeated stimuli important for a 2. (1 pt)
ID: 214441 • Letter: 1
Question
1.(1 pt) Why is sensory adaptation to repeated stimuli important for a 2. (1 pt) A neuron may receive multiple stimuli from the same sensoryothe number of signais period of time. The firing rate of the receiving neuron is proportional received from the sensory neuron. Which of the following is this an ex Temporal s e same sensory neuron over a very short Hyperpolarization e rollowing is this an example of (circle one)? a. b. Action potential c. Spatial summatio 3. (1 pt.) Three different cells-A1, A2, and A3--are activated to diffe input. If lateral inhibition is added to th cells B1, B2, B3: (circle one) pattern a, pattern b, or pattern e network below, which pattern of activity is expected in c? B1 B2 Response of A1, A2, B3 A1 A2 A3 A1 A2 A3 Response of 81, B2, B3 B1 B2 83 B1 82 B3 B1 B2 B3 and Company uld it be advantageous for animals to have two separate systems of chemical 4. (1 pt.) Why wo detection (taste and smell)? 5.(1 pt) What type of sensory receptor would be responsible for detecting changes in blood pressure (circle one):? a. Chemoreceptor b. Mechanoreceptor d. Thermoreceptor e. Photoreceptor c. NociceptorExplanation / Answer
1)
The sensory adaptation due to repeated stimuli is important for animals as they need to detect constant changes in the environment. The neural receptor cells that receive and process stimulation undergo changes to detect or sense important changes happening in the environment.
2)
d. Temporal summation
A neuron at a given moment can receive a number of postsynaptic signals from several other neurons. To reach the threshold and to generate an action potential, the spatial and temporal summation of all inputs at that moment are considered. Spatial summation means the stimuli from multiple neurons while temporal summation means multiple stimuli from a single neuron.
3)
Pattern b.
Lateral inhibition in the neurobiology indicates the excited neuronal capacity to diminish the activity of its neighbors. Lateral inhibition stops the spread of action potential from excited neurons to neighboring neurons in the lateral direction. So, the stimulated neuron only will respond strongly unless it is at the edge of any surface.
The pattern of response seen in the cells of A1, A2, and A3 is followed in the same way even in cells of B1, B2, and B3 if there is lateral inhibition. In the absence of lateral inhibition, the pattern might change due to switching of stimuli. Pattern b closely resembles the one represented by A1, A2, and A3 than by the other patterns. As there is lateral inhibition, there cannot be a change in the pattern from the one initially given out.
4)
Smell is helpful to detect whether the odor is liked by the animal or not liked. If the animal dislikes the odor, it can avoid its odor as well as avoid tasting it.
Taste is the sensory perception by the tongue that is carried by the animal from its birth. An animal or human is born with sweet liking or bitter liking or anything else. So, taste is already selected by the animal while smelling can be used to either use the odor or avoid it. Smelling also helps either to decide to taste the food or not.
5)
b. Mechanoreceptor
The sensory receptors that are associated with the walls of the blood vessels are sensitive to changes in the blood pressure. Mechanoreceptors are the sensory receptors that respond to the mechanical pressure. These receptors are lamellar corpuscles, tactile corpuscles, Merkel nerve endings and bulbous corpuscles.
Related Questions
Navigate
Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.