Specialized sensory receptors monitor specific conditions in the body. monitor specific conditions in the external environment. pass information to the CNS in the form of action potentials along the axon of a sensory neuron.
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In order for our nervous system to give us accurate and useful information from our environment, our sensory system has to have certain characteristics. Check those items below that include sensory receptor characteristics: - The receptor has to be able to convert some form of energy outside our body into graded potential. - An action potential resulting from receptor stimulation must travel along specific pathways to the central nervous system to be interpreted and acted upon. - Stronger or more intense receptor stimuli must create stronger and more intense action potentials. - A sensory receptor structure needs to be specific for a given stimulus.
Sri K.
Complete the sentences that describe how a sensory impulse is generated. Each type of sensory receptor is sensitive to a particular type of stimulus, typically some change in the environment. Some receptors are ends of neurons while others are specialized cell types located near neuron extensions. Stimulation of a receptor, whether it is a neuron or not, results in the generation of a receptor potential. This change in membrane potential is graded, reflecting the intensity of the stimulus. If the receptor itself is not a neuron, the receptor potential is transferred to the neuron. If the threshold is reached at the axon of the afferent neuron, an action potential will be generated and the sensory impulse will be conducted to the central nervous system.
Adi S.
Sensory receptors provide the brain with information about our external and internal environments. Our general sense receptors include: 1) sensory receptors which are housed in the skin, mucus membranes, joints, muscles, and tendons; and 2) sensory receptors which are housed in the walls of our autonomic organs, including blood vessels. The other receptors, housed in the structures within the head, provide sensory input about our special senses. Afferent pathways regarding general senses deliver nerve impulses to the somatosensory cortex and cerebellum. Interpretation of sensory nerve impulses depends on the modality, location, intensity, frequency, and duration of the stimulus (Remember the sensory homunculus?!). A stimulus that reaches the cerebral cortex and therefore we become consciously aware of is called a 3). Most sensory receptors exhibit reduced sensitivity to prolonged stimulation. This is called 4).
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