When there is an increase in stimulus strength on a pain receptor, more pain is felt. What would best explain this? The number of IPSP's decreases O The stimulus is now supramaximal The pain receptor adapts to the larger stimulus The frequency of action potentials increases

When there is an increase in stimulus strength on a pain receptor, more pain is felt. What would best explain this? The number of IPSP's decreases O The stimulus is now supramaximal The pain receptor adapts to the larger stimulus The frequency of action potentials increases

Human Anatomy & Physiology (11th Edition)

11th Edition

ISBN:9780134580999

Author:Elaine N. Marieb, Katja N. Hoehn

Publisher:Elaine N. Marieb, Katja N. Hoehn

Chapter1: The Human Body: An Orientation

Section: Chapter Questions

Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...

See similar textbooks

Similar questions

Why can tactile stimulus be localized in parts of our body better than other parts?
When people are tickled, light touch receptors are activated, causing a range of different responses, including squirming or movement away from the stimulus. Match the step in the tickle response homeostasis loop with the correct label
Actin and myosin in the sarcomeres will remain Douna. O Actin and myosin in the sarcomeres are in the unbound state. Question 41 Which of the following is an example of sensory adaptation? O After the wound healed, the pain also went away. O You notice the smell of liver and onions cooking when you enter the kitchen, but soon you do not notice the odor although they are still cooking. When it is totally dark, the rods and cones of the eyes do not send any visual impulses. O The act of trying to read a book while riding in a car causes eyestrain. Question 42 What determines "loudness"? O The number of hair cells that are stimulated. O The wave frequency or number of vibrations per second. O As the noise gets louder, the auditory (Eustachian) tube expands. 1 pts 1 pts
In vision, The sympathetic system stimulates the ciliary muscle to contract resulting in decreased tension of zonal fibers on the lens Astigmatism occurs as a result of an eye that is too long Rods release more neurotransmitter when transducin is not activated by the dissociation of retinal and opsin Rods are concentrated in the fovea
What is the shape of a receptive field of a simple cell in the primary visual cortex?A. Either a bar or an edge, in a fixed positionB. Either a bar or an edge, anywhere within a large area of the retinaC. Either a bar or an edge, with a strong inhibitory field at one endD. A circle, with a surround that responds in the opposite way
A neuron with an off-center receptive field will increase its firing rate when light covers the entire receptive field light fills the center portion of the receptive field O light is outside of the receptive field O light enters the surround portion of the recentive field
Condtions that compress peripheral nerves differentially affect nerve fibres over time, causing loss of sensorimotor function. What is the correct order of loss (first to last)? pain & temperature, touch, vibration, and joint position sense joint position sense, pain & temperature, touch, and vibration pain & temperature, vibration, joint position sense and touch joint position sense, touch, vibration and pain & temperature touch, vibration, joint position sense, pain & temperature
Which of the following can readily adapt to a continuous stimulus! baroreceptor somatic pressure receptor Osmoreceptor somatic pain receptor visceral pain receptors
Some types of antibiotics can permanently destroy hair cells near the base of the cochlea, close to the oval window. What kind of hearing loss would we expect if this happens? O the selective loss of hearing high pitched sounds O less tolerance for loud sounds O less ability to hear soft sounds O the selective loss of hearing low pitched sounds
A more developed two-point tactile discrimination :-a- indicates a greater threshold distance for feeling of two points of touch applied simultaneously b- is seen in the proximal regions of the body compared with the distal regionsc- is inversely related to the size of the receptive fields of the stimulated sensory unitsd- depends upon the type of the involved touch receptor
Identify, in correct order, of sensation to perception, the major connections of the pathway underlying fine touch, and pressure. afferent axons decussate at medulla primary somatosensory cortex activated somatosensory humunculus according to where on body touch was felt free nerve endings depolarize dendrites of peripheral afferents axons in the medial lemniscus terminate in the ventral posterior nucleus of the thalamus axons of afferents enter into dorsal horn of spinal cord and ascend ipsilaterally
Detection of the stimulus modality depends upon :-a- the location of the receptors in the bodyb- the magnitude of the stimulusc- the anatomical connections between the receptors and specific sensory areas in the cerebral cortexd- the magnitude of the receptor potential