Answer and Explanation: We see a lemon as yellow because the pigments in the skin of a lemon reflect yellow light. The pigment absorbs all colors of light except yellow. Our eyes can detect the reflected color due to the cones in the retinas.
When light waves enter the eye they first pass through the?
Light enters the eye through the cornea. This is the clear, dome-shaped surface that covers the front of the eye. From the cornea, the light passes through the pupil. The iris, or the colored part of your eye, controls the amount of light passing through.
What is the best description of the skin senses?
The skin contains receptors that respond to touch, pressure, and temperature. The relationships between receptors and the cutaneous sensations are not completely understood. Meissner’s corpuscles are sensitive to touch and Pacinian corpuscles to deep pressure.
Which of the following describes what happens if you trace an auditory stimulus from the time it first reaches the ear?
Which of the following describes what happens if you trace an auditory stimulus from the time it first reaches the ear until it arrives at the brain? The outermost part of the ear (pinna) gathers sound waves and funnels them down the auditory canal striking the eardrum.
Which of the following provides the best description of the kinesthetic sense?
Correct answer:
The kinesthetic sense is the awareness of the body’s position in space, and of the movements of its various limbs.
What are eyes made of?
The eye is made up of three coats, which enclose the optically clear aqueous humour, lens, and vitreous body. The outermost coat consists of the cornea and the sclera; the middle coat contains the main blood supply to the eye and consists, from the back forward, of the choroid, the ciliary body, and the iris.
What is the white of the eye called?
sclera
The sclera is the tough outer layer of the eyeball (the white of the eye). The slight bulge in the sclera at the front of the eye is a clear, thin, dome-shaped tissue called the cornea. The cornea directs light rays into the eye and helps focus them on the retina.
Is hair an organ?
Hair. Hair is an accessory organ of the skin made of columns of tightly packed dead keratinocytes found in most regions of the body.
Which part of the body is most sensitive to touch?
The tongue, lips, and fingertips are the most touch- sensitive parts of the body, the trunk the least. Each fingertip has more than 3,000 touch receptors, many of which respond primarily to pressure.
Is skin an organ?
The skin is the largest organ of the body. The skin and its derivatives (hair, nails, sweat and oil glands) make up the integumentary system. One of the main functions of the skin is protection. It protects the body from external factors such as bacteria, chemicals, and temperature.
Why do you see a lemon as yellow 3 points?
We see a lemon as yellow because the pigments in the skin of a lemon reflect yellow light. The pigment absorbs all colors of light except yellow. Our eyes can detect the reflected color due to the cones in the retinas.
What is the name of the structure located inside the cochlea that contains auditory receptors?
The Organ of Corti is an organ of the inner ear located within the cochlea which contributes to audition. The Organ of Corti includes three rows of outer hair cells and one row of inner hair cells.
What part of the human ear contains the eardrum?
The middle ear is made up of the eardrum and three small bones (ossicles) that send the movement of the eardrum to the inner ear.
What is our sharpest clearest vision called?
Fovea: In the eye, a tiny pit located in the macula of the retina that provides the clearest vision of all. Only in the fovea are the layers of the retina spread aside to let light fall directly on the cones, the cells that give the sharpest image. Also called the central fovea or fovea centralis.
What is the role of kinesthetic and vestibular system class 11?
They are called kinesthetic and vestibular systems. They provide us with important information about our body position and movement of body parts related to each other.
How can I improve my kinesthetic sense?
To do it, stand on one leg without allowing your raised foot to touch your standing leg. Begin with your eyes open, and practice once or twice on each side. Then, looking straight ahead, close your eyes and try to keep your balance for 30 seconds.
How do eyes stay wet?
Glands just above your eyes make tears. Other glands at the edges of your eyelids produce oils that float on top of the watery tears and slow down evaporation, so your eyes stay wet even in the desert. There are drain holes near the inner corners of your eyes, where ‘used’ tears flow into the nose.
Where do your eyes go when you close them?
It was shown that after the start of blinking of eyelid closure, the eyeball moves up as the upper eyelids come down. Experimental data show human inability to maintain a given position of the eyes in the head under the closed lids.
What is a hurricane eye?
The eye of a hurricane is a circular zone of fair weather at the storm’s center. It is surrounded by a towering ring of extremely powerful thunderstorms called an eyewall, the part of the hurricane with the strongest winds.
Why are my eyes GREY instead of white?
Blue sclera: If the sclera is thinner than normal, blood vessels may show through, giving your eyeballs a blue or gray hue. This may occur in people with certain health conditions.
Why does my inner corner hurt?
Pain that’s localized to the corner of your eye can have several potential causes. Possible causes can include tear duct infections, blepharitis, and styes. Some of the conditions that affect the corner of your eye may be treated at home using warm compresses, gentle massage, or artificial tears.