Which is the part of thehuman visual system wherethe receptors that sense light,i.e., the photoreceptor cells,are located? How do thosecells work?

Q: What is shape of lens during near vision and distinct vision.

A: The biconvex transparent structure in the eye is the lens. It facilitates the refraction of light to…

Q: Why are the neurons in the earlier stages of the sensory pathways necessary for perception?

A: Humans experience senses like touch, pain, etc because of the sensation or sensory pathways for…

Q: Explain why a person with normal binocular vision isable to judge distance and depth of close…

A: Images from each eye merge together to form a single 3D image and this image is called binocular…

Q: What region of the retina contains a high density of photoreceptor cells and allows for extremely…

A: The fovea centralis of the retina contains high-density photoreceptor cells and allows for extremely…

Q: Which one of these correctly describes the location of the organof Corti?a. between the tympanic…

A: A human ear is an organ that is responsible for both, hearing as well as equilibrium. The…

Q: What's the function of an eye

A: The eye is basically a sensory organ. It gathers light from the apparent world around us and…

Q: How do the ciliary body and lens focus light from a near object on the retina?

A: The eyes are one of the sensory organs which allow us to see the environment surrounding us. The…

Q: What would vision be like after a drug has destroyed all the cones in the retina?

A: About 2 million Americans annually suffer from substance-abuse disorders. According to a report,…

Q: Which of the following is the inner most layer of human eye? a) Retina b) Choroid c) Sclera d)…

A: Introduction - Our visual organ is the eye. Because of its intricate construction, an image can flow…

Q: Which sensory receptors permit you to perform actions such as finding your way into bed in the dark?

A: Sensory receptors detect the changes that occur in the body as well as in the exterior environment.…

Q: Since the visual images areprojected in an invertedmanner on the retina whydon't we see things…

A: Human eye consist of biconvex lens which help to form a real and inverted image of an object. Light…

Q: Compare the architecture of the fovea centralis with more peripheral regions of the retina. How does…

A: That eye is also focused when reading and looking at images in daylight so that the image falls…

Q: Under normal visual circumstances, explain why small objects are not lost from our vision.

A: The eye is a three-layered, fluid filled ball divided into two chambers. The human eye is designed…

Q: What would happen to your sense of smell if there were damage to basal cells or no basal cells…

A: Answer. The olfactory system is one of the oldest systems that help in the detection of food. It…

Q: Despite the presence of the blind spot, you do not consciously experience a “hole” in your vision.…

A: The blind spot is where the blood vessels and optic nerve leaves the eyeball. The optic nerve and…

Q: Why do we detect faint light more effectively in the periphery of the retina than in the fovea?

A: Faint light or dim light is detected by rods in retina

Q: Visual acuity is greatest when a ganglion cell has ____________________(many or few) photoreceptors…

A: Visual acuity Visual acuity means the ability of your eyes to recognise the shapes and details of…

Q: Light rays from an object in the temporal half of the visual field strike which half of the retina?

A: The visual field may be defined as the total area of vision of our eyes. When our eyes are focused…

Q: Which structure of the eye is responsible for focusing visual stimuli?

A: Introduction :- The eye has a spherical ball form with a small protrusion in the front. There are…

Q: Trace the path of a photon of light through all the layers of theretina discussed in this chapter.…

A: Light passes through the front of the eye (cornea) to the lens. The cornea and the lens help to…

Q: Because fibers of the optic nerve that originate in the nasal halves of each retina cross over at…

A: Into the nasal (medial) half and the temporal (lateral) half, the visual field of each eye is…

Q: In a condition called presbyopia, the eyes’ lenses lose muchof their elasticity and maintain a flat…

A: The eye is the organ of visual system that consists of rod and cone cells. These cells are present…

Q: Describe olfactory neurons and explain how airbornemolecules can stimulate action potentials in…

A: During rest (no signaling), the voltage difference across the membrane of the cells is referred to…

Q: How is the processing of olfactory stimuli different from that of other special sensory stimuli?

A: Olfactory stimuli : - It is particular stimulus which is responsible for odor. The information is…

Q: What is the pathway for vision?

A:

Q: As a person ages, their ability to focus on near objects(accommodation) changes. If a person is…

A: Myopia Myopia is also known as nearsightedness. This is an eye condition where a person has a poor…

Q: The olfactory tract connects to what component in the olfactory system

A: Paired olfactory organs in the nasal cavity, contain specialized olfactory receptor neurons that…

Q: what are the factors affecting visual perception of humans?

A: Visual perception is the ability to interpret the surrounding environment through photopic vision…

Q: Even though they are located in the back of the retinal tissue, what is the importance of the rod…

A: The retina is the back part of the human eye that contains the different type of cells that respond…

Q: The ear can distinguish frequency and amplitude in sound waves.  This gives the ear the ability to…

A: Human ear is one of the most important organ which is for hearing and it consists of three regions:…

Q: What brain regions serve the sense of smell and how dothey differ in their olfactory functions?

A: The brain has four main structures; the Cerebrum, Cerebellum, Limbic System, and Brain Stem. The…

Q: sense of smell the most important?

A: yes smell is one of the sense organ and important in our day to day life activities Smell is an…

Q: A patient has had a stroke that damaged the trigeminal nerve but not the facial, glossopharyngeal,…

A: The cranial nerves arise directly from the brain. They are twelve in number. The first two emerge…

Q: Why do humans see so poorly under water? And whydo goggles help?

A: The eyes are the organ of sight and are composed of the optical system of nerves and one of the…

Q: Which statement about retina is FALSE? a. The optic disc has no photoreceptors b. The ratio of…

A: Retina  It is also known as screen of eye. Retina is the place in eye where image is formed. It…

Q: The______________ is the colored section in the eye aroundthe pupil.

A: The eye is the organ of the human body that is responsible for vision. Vision is the most important…

Q: What is the trade-off between acuity and sensitivity and how does the visual system deal with this?

A: Acuity is the ability to see, hear, or understand something easily. Visual acuity especially relates…

Q: What is the route from retinal receptors to the brain?

A: The retinal system is defined as the visual system that connects the retinal ganglion cells (RGC) to…

Q: Starting with the optic nerve, trace the action potential from the right temporal visual field to…

A: Hello! Since you have posted multiple questions, we are answering only first question. If you need…

Q: If a patient suffers visual impairment only in one eye, why must the damage be located in the visual…

A: Understand the location of the lesion in case of visual impairment is essential from the clinical…