A bar of light in a specific part of the retina, with a particular length and orientation, is the most effective stimulus for a.retinal ganglion cells. b.lateral geniculate cells. c.simple cortical cells. d.complex cortical cells.

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: The human eye focuses bya. changing the thickness of the lens.b. changing the shape of the lens.c.…

A: Sense organs are specialized organs that allow the human body to perceive sight, smell, sound,…

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: My cat Mia has poor color vision, but can see very well in dark environments. What characteristic of…

A: The eye is the photosensitive organ in the body that contain photosensitive layer known as retina.…

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: Cone pigments detect different wavelengths of light due toa. their location in the retina.b. the…

A: Answer is a.)  their location in the retina.

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: Damage to the right optic nerve would result in what type of visual field deficit?   Question 6…

A: Damage of an optic nerve can lead to loss of vision, vision distortion and blindness. The nerve…

Q: Which of the following correctly lists the steps of perception? a. Interpretation, stimulation,…

A: The body experiences external stimuli(sensation) through sensory receptors located on the surface of…

Q: A 10-year-old patient’s distance visual acuity was tested and determined to be 20/80. (a) Explain…

A: Visual acuity is measured to determine how clear a person could see. It is determined by using a…

Q: Discuss the difference between general senses and special senses. Then, of the special senses,…

A: Senses are the systems involved in sensation which is the physical process during which sensory…

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: Which two of the following are part of the olfactory organs? a. olfactory receptor cells b. columnar…

A: The sensory system that comprises various organs and helps us provide the sense of smell (olfaction)…

Q: What makes the blind spot of the retina blind? a. It is at a location where the lens cannot focus…

A: Retina is the thin layer of neural tissue at the back of the eye and it is composed of…

Q: Which of the following components of the eye allows a person to focus on objects at various…

A: Optic nerves transmit electrical impulse from eyes to brain.   Sclera supports wall of eyeball and…

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: If someone is born with dense cataracts on both eyes, and the cataracts are removed years later,…

A: The lens inside your eye has a clouding which is termed a cataract.Just behind the iris, the lens…

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: The human eye forms the image of an object at its:(a) Cornea(b) Iris(c) Pupil…

A: The “human eye” is one among the “sense organs” that allows vision and responds to light in…

Q: What is the “retina” of the olfactory system?    a. The olfactory epithelium   b. The olfactory…

A: The olfactory system is a system that is responsible for the sense of smell in organisms. The…

Q: Name the two types of sensory cells present in retina.

A: A photoreceptor cell is a particular kind of neuroepithelial cell found in the retina that is fit…

Q: Why do people over 55 often need reading glasses? a. Their cornea no longer focuses correctly. b.…

A: When people reach around the age of 55, they experience blurred vision while reading or working.…

Q: Auditory receptors, are known as hair cells in which of the following? A. In the auditory nerve B.…

A: Hearing organ of the mammals is ear, which detects sound. It is divided into three parts outer ear,…

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: a.Describe the pathway of nerve impulses from the ear to the brain. b.Describe the role the ear…

A: Introduction: Sensory nerve impulses are carried from the outer ear to the brain through a sensory…

Q: What is the main function of the rods in the eye?________________   A. depth perception…

A: In a one glance, your eyes work with your brains to tell us the size, shape, color, and texture of…

Q: Which of the following is accurate about the maculae of the vestibular apparatus? a. They detect…

A: Introduction: The vestibular system contains bony labyrinth which is a part of the inner ear and is…

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: Visual information from the lateral geniculate area goes next to the:     a. hypothalamus     b.…

A: C- In Visual pathway the information goes from lateral geniculate area goes to the next primary…

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…