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What is the receptor in pupillary reflex and the effector do both change simultaneously in pupillary reflex?
Wiki User
∙ 14y ago
The receptor is the retina of the eye; smooth muscle of the iris is the effector. They both change simultaneously because the pupillary light reflex is contralateral.
Wiki User
∙ 14y ago
Wiki User
∙ 10y agoThe effector in the pupillary reflex is the smooth muscle of the iris
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When a signal molecule binds to a receptor protein the receptor protein may change the?
shape.
An allosteric receptor embedded in a cell membrane will change shape only?
when a signal molecule fits the shape of the receptor
In a negative feedback loop the effector organ produces changes that are?
opposite in direction to the change produced by the initial stimulus
What does the effector do?
Typically, the term "effector" is used to describe the final structure in a reflex pathway--the structure that actually does the work. What "work"? It depends on the context.For example, in a reflex that ends in movement of a limb (like bending the arm) the effector would be the skeletal muscle that contracts and causes the limb to move.There are seven steps in the simplest reflex pathway:StimulusSensory receptorAfferent (sensory) pathwayIntegrating centerEfferent (motor) pathwayEffectorResponseIn the endocrine system, the term "effector" could be used to describe the tissues that the hormones act on. It is also possible, depending on the context, that "effector" could be used to describe the endocrine gland itself. See the following examples:Blood sugar regulationStimulus = high blood sugarSensory receptor = beta cells of pancreasAfferent pathway = second messengers in beta cellsIntegrating center = beta cells of pancreasEfferent pathway = insulin traveling in the bloodstreamEffector = many body tissues (e.g. adipose tissue) with insulin receptorsResponse = uptake of glucose (sugar) from the bloodstreamAdrenaline release (fight or flight response)Stimulus = fearful sight or sound (e.g. the screech of braking tires, or the sight of a dog coming after you)Sensory receptor = Hair cells in the cochlea, or rods & cones in the eyesAfferent pathway = sensory neuron (cranial nerve VIII if sound, CN II if sight)Integrating center = brain, esp. hypothalamusEfferent pathway = sympathetic neuron (part of autonomic nervous system)Effector = adrenal glandResponse = release of adrenaline (epinephrine) into bloodstreamI hope you can see what I mean by context. The release of epinephrine will start a whole new reflex pathway! It depends on where you begin.
Why body temperature control is an example of antagonistic effectors?
in homeostasis an antagonistic effector is what brings about the response to the change in environment in order to keep your internal environment the same. for exampe if the core body temperature is too low the antagonistic effector is what increases your body temperature.
What is an effector organ in human biology?
Effector organ is a part of the body that responds to a stimulus and a stimulus is a change in the environment that is detected by a receptor. And is a receptor is a nerve cell that detects a stimulus.
When a signal molecule binds to a receptor protein the receptor protein may change the?
shape.
How would you change the pA2 for a drug-receptor pair?
The only way to change the pA2 would be to alter the nature of the receptor, because the pA2 is essentially a measurement of the affinity of the antagonist drug for the receptor. So, in order to change this value, one would need to change the receptor in a way that changes the binding affinity of the drug.
What structure brings about the change to alter the stimulus?
The effector will act to counter the stimulus.
Environmental change that triggers a definite action on the part of the organism serves as an?
effector
An allosteric receptor embedded in a cell membrane will change shape only?
when a signal molecule fits the shape of the receptor
What structure detects sound?
Biologically the receptor is what detects the stimulus. The nervous system works in a diagram like this: Stimulus --> Receptor --> Coordinator --> Effector --> Response e.g Hot Pan --> Thermo --> brain --> bicep muscle contracts --> hand moves away On Hand receptor from pan. In skin.
Can chemical change and physical change happen simultaneously?
yes
What has the author Robert Edward Hope written?
Robert Edward Hope has written: 'Pupillary size change as correlated with mental activity'
Does a receptor detect change in the environment?
yes they do ;) the skin for the temperature :)
Which sensory receptor is sensitive to change in tension of a muscle?
proprioceptors
What are cells which detect change called?
They are called Receptor Cells
