It bends or refracts light rays entering the eyes. C. It is the site of attachment for the extraocular muscles. D. It helps to maintain the shape of the eye. Answer Key: B Question 2 of 20 1.0 Points The border between the transparent edge of the cornea and the white of the fibrous sclera is the: A. pupil. B. anterior chamber.
The tunica vasculosa of the eye includes all of the following except: (a) the cornea; (b) the iris; (c) the choroid; (d) chromatophores; (e) the ciliary body. 11. Outer hair cells of the cochlea have their microvilli embedded in: (a) the vestibular membrane; (b) the tectorial membrane; (c) the basilar membrane; (d) the cupula; (e) the vitreous body. 12. ___ cells of the retina are inhibited by glutamate in the dark, but excited in the light when glutamate secretion stops.
The cones abundant around and in the fovea there are actually six per retina. 5. Describe the trichromatic and opponent-process theories of color vision. 6. The trichromatic theory has short (blue), medium (green) and long (red) wavelength.
5. Transparency: Is a measure of how much light can pass through a material. 6. Transparent: Particles in transparent material let light go through easily. 7.
Containing axons from the ganglion cells that are in the retina of each eye, but only one passes on the information for the visual field d. Geniculate nuclei – Or Lateral geniculate nuclei (LGN)has six layers which gathers input the contraor ipsilateral eye. Four layers that (dorsal) that have small neurons that sustain discharge patterns, and are sensitive to color. Two other layers are ventral layers which have large neurons known for the transient discharge patterns and high contrast grain. e. Primary visual cortex – Is responsible for processing information from what is input from the eyes 2. What is an example of a visual deficit associated with brain damage, disorder, or disease affecting the visual pathway?
They form the lining of cavities such as the mouth, blood capillaries, heart and lung alveoli and make up the outer layers of the skin. Simple Cuboidal Epithelium are roughly square in shape and have a circular nucleus in the centre of each cell. They are found in glands and in the lining of the kidney tubules. Simple Columnar Epithelium occur in one or more layers. They are elongated and column shaped.
Optic Nerves- the cranial nerve that serves the retina. It transmits visual data from theretina to the mind. 3. Optic Tract- It is a continuation of the optic nerve and runs from the optic chiasm to the lateral geniculate cores. Data from the right visual field (now on the left half of the mind) travelsin the left optic tract.
With motor neurons? - afferent = sensory information move toward the brain and spinal cord -efferent= information is taken away from the brain and spinal Cord 3 what is function of interneurons? - contact nearby neurons in brain, spinal cord or ganglion 4 what are subdivisions of the PNS? - the subdivisions of the PNS are somatic nervous system, autonomic nervous system and enteric nervous
Later, when I turned the brain over, the most prominent structure visible was the optical chiasma, where two optic nerves cross over each other. Towards the front of the brain the two olfactory bulbs were easily identifiable. Under the optic chiasma were bulges that indicated the pons and a long stem like structure that was the medulla oblongata. I made 2 cuts altogether
When looking at an object a wavelength enter into the eye and pass through the cornea. The cornea is a clear membrane that cover the front of the eye, and help direct incoming light. The eye is build up on selera which is tissue that covers the eye ball except the cornea. Visual information is then sent to the brain and process in the retina by neurons called ganglion cells. There are only one million ganglion cells that transmits messages from 130 million visual receptors.