The pupils constrict when we focus on nearby objects so _______________. A.less distracting light can enter the eye.   B.the rest of the environment is excluded from vision.   C.the object can be better focused onto the retina.   D.None   E.All are correct.

Q: A bar of light in a specific part of the retina, with a particular length and orientation, is the…

A: A bar of light in a specific part of the retina, with a particular length and orientation, is the…

Q: If someone is color-blind, which structure is malfunctioning? A.None B.Cones C.Cornea D.Rods…

A: Colour blindness is the inability to distinguish certain colours.

Q: Which of these photoreceptor cells do not match their function? a) rods - night vision b) stavar -…

A: Receptors are the substances that receive some signal or a molecule to facilitate detection.…

Q: If a person is born blind, what happens to the occipital (“visual”) cortex?A. Its cells shrink and…

A: People often say that blind people become better than usual at touch and hearing. If a person is…

Q: Match the lesion to the result A. Left optic tract B. Left optic nerve C. Left visual cortex…

A: The optic tract is the visual system part of the brain. It is optic nerve continuation and relays…

Q: Which is the part of thehuman visual system wherethe receptors that sense light,i.e., the…

A: Eye is the chief organ of the visual system. In most mammals they are paired structures and are oval…

Q: Why is it easier to see images at night using peripheral, rather than the central, vision? a. Cones…

A: It is easier to see images at night using peripheral rather than central vision because at the edges…

Q: When you view a close object, your lens gets_____ . a. flatter c. darker b. rounder d. cloudier

A: ACCOMODATION The process of focusing on a nearby object causes 3 processes -  Convergence of eyes…

Q: Visual System Matching protects and shapes the eyeball; provides a sturdy anchoring site for…

A: In human anatomy, the visual system comprises the eyes, lateral geniculate nucleus and some parts of…

Q: At night, which type(s) of photopigment enable(s) you to discriminate the colors of neon signs and…

A: Eye is an organ which helps us to provide vision it has several photoreceptors which receives light…

Q: The is the region of the eye that controls the amount of light that enters.a. cornea b. pupil c.…

A: Eye is an organ responsible for sight/ vision. There are many structures which works together to…

Q: Which of the following statements is correct A. The innermost layer of the retina contains mainly…

A: The retina is a light-sensitive layer that lines the eye's interior. It is made up of rods and…

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: 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: Hyperopia is a vision defect in which near object vision is clear and distant object vision is…

A: The eye can be defined as the organ which provides the sighting to the eyes. The eye consists of the…

Q: What are the receptive field characteristics of cortical neurons in layer 3 of the primary visual…

A: Cortical Neurons : Cortical neurons are generated within the ventricular zone ,next to the…

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: Regarding the eye's adaptation to darkness: a) then it happens faster than the eye's light…

A: The human eye is a sensory organ that responds to light and enables vision. Photoreceptive cells,…

Q: Human can loose hearing if he is subjected to: Select one: a. Repeated take off and landing of…

A: Hearing is considered a major sensory function in the human body, where the sound from the external…

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: Vibrations of the stapes are transferred to the _________ window, waves displace the ___________…

A: The stapes is one of the three auditory ossicle bones in the middle ear. It is the smallest bone of…

Q: State the part of eye that constricts or dilates based on the amount of light in the environment. A.…

A: 1. Pupil helps in constriction and expansion based upon the amount of light present in our…

Q: The photoreceptors that perceive color and sharp vision area. amacrine cells.b. rods.c. horizontal…

A: The back portion of the eye that responds to light is called the retina. This is carried out with…

Q: blindness can result from the loss of specific types of cones, or it can occur in individuals having…

A: Colour blindness follows X linked recessive pattern of inheritance. Special types of cells called…

Q: What is the relationship between sensation and perception: a. Sensation cannot happen on cold…

A: Both perception & sensation are interlinked.  Sensation is carried out when stimulus is given to…

Q: 1. Somatic senses may inclu a. proprioception b. sense of touch moa C. sense of vision d. sense of…

A: 1.Somatic senses may include f)all of them are correct  explanation: Somatic senses can be found in…

Q: Blindsight is the condition in which someone with damage in the primary visual cortex reports that…

A: The phenomenon in which blind people who lost sight due to the damage/injury in the primary visual…

Q: correct about the visual system? A.Input from the left eye is processed exclusively in the right V1…

A: V1 is found in the medial occipital lobe of the brain, in the Calcarine sulcus (near the back of the…

Q: Paralysis of a medial rectus muscle would affect (a) accommodation,(b) refraction, (c) depth…

A: There are six extrinsic eye muscles that help to keep the eyeball in shape. They also regulate the…

Q: Why is a retinal defect, such as retinitis pigmentosa, which causes tunnel vision, associated with…

A: Night blindness  Night blindness is the condition of eye in which a person is unable to get clear…

Q: Which of the following is correct about the lateral occipital complex (LOC) in object perception?…

A: The human nervous system consists of organs and fibers that work together to coordinate various…

Q: Identify the visual accommodation when focusing on a near object. A. Ciliary muscles contract,…

A: Human eyes cannot change the distance of lens directly to observe nearer to to farther. However…

Q: 2) Hair cells that respond to sound waves are located in the ________. A) cochlea b) middle ear c)…

A: The sense organs are the extension of the nervous system. Thye help to perceive the internal and…

Q: What is the problem in someone with far-sightedness (hyperopia)? The eyeball is too long, causing…

A: In hypermetropia, a person cannot be able to see a nearby object but see far objects clearly.

Q: What is the X-shaped structure that sits just below the brain’s ventral surface and represents the…

A: To detemine: To determine the X-shaped structure that sits just below the brain’s ventral surface…

Q: T c) When the muscles connected to the crystalline lens relax, the focal length is 9.0000 cm. With…

A: Human Eye -- Human eye behaves like a single lens with an adjustable focal length  which forms an…

Q: Horner syndrome is a condition where sympathetic innervation to one side of the head and neck is…

A: Horner syndrome is a rare medical condition occurring due to disruption of the sympathetic nerve…

Q: When you change your focus from near to a far object, describe the three main mechanisms occur in…

A: Introduction :- The human eye is a sense organ that responds to light to allow vision. Both the…

Q: As we progress from bipolar cells to ganglion cells to later cells in the visual system, what…

A: The stimuli can generate electrical impulses in the sensory region. The area where it is generated…