Plse ans me 3 All. Q.
Dear student
Answer to question 3 (top of the page, left side) is as follow:
a) The medicine dropped into the eyes passes into the back of the nose via lacrimal punctum that leads to the nasolacrimal duct.
b) The three ossicles of ear are - the malleus, incus and the status. They help to increase the mechanical advantage of the ear and thus increase the amplitude of the sound wave and as a result we hear the sound a little bit louder as compared to the original sound because there is damping off the sound when it passes through air.
c) Blind spot is a point on the retina where the optic nerve joins in and it does not have color or light receptors at all. As there are no sensory cells no information is send to brain to interpret it and so no image is formed on the blind spot. So it is called area of no vision.
Regards
Answer to question 3 (top of the page, left side) is as follow:
a) The medicine dropped into the eyes passes into the back of the nose via lacrimal punctum that leads to the nasolacrimal duct.
b) The three ossicles of ear are - the malleus, incus and the status. They help to increase the mechanical advantage of the ear and thus increase the amplitude of the sound wave and as a result we hear the sound a little bit louder as compared to the original sound because there is damping off the sound when it passes through air.
c) Blind spot is a point on the retina where the optic nerve joins in and it does not have color or light receptors at all. As there are no sensory cells no information is send to brain to interpret it and so no image is formed on the blind spot. So it is called area of no vision.
Regards