photosensitive receptor.cones and rods.cones work in bright light and are sensitive to colours whereas rods work in dim light and are not sensitive to colours
Photoreceptor
one and three fouths
The M2 muscarinic acetylcholine receptor is the primary receptor found in effector organs of the parasympathetic system. Activation of this receptor leads to inhibition of adenylate cyclase and decreased intracellular levels of cyclic AMP, resulting in various physiological responses in target tissues.
Hormone receptor
The area containing the greatest amount of receptor cells is typically the sensory organs, with the highest concentration found in the retina of the eye. The retina contains photoreceptor cells (rods and cones) that are highly specialized for detecting light and color. Other areas with a high density of receptor cells include the skin, which has numerous mechanoreceptors, thermoreceptors, and nociceptors for touch, temperature, and pain perception.
i think its the retina
dendrites only
visual receptor for the brain
The human eye contains specialized receptor cells that are responsible for night vision. These cells are referred to as rods.
Photoreceptor
Retina
Rods
The major function of Rods in the eye is that of Photo (light) reception. They are more sensitive to light thn are the cones, but are not color sensitive,The rods are photo receptor cells found in the retina. Their main function is to help the eye see in dim light.
In the cell membrane.
one and three fouths
The M2 muscarinic acetylcholine receptor is the primary receptor found in effector organs of the parasympathetic system. Activation of this receptor leads to inhibition of adenylate cyclase and decreased intracellular levels of cyclic AMP, resulting in various physiological responses in target tissues.
basically, the viruses have a special compounds on their surface that binds ONLY to a receptor on the liver cell, and its not found on any other cell. so that's is how a virus for hepatitis C for instance ONLY infects the liver. its frankly a receptor ligand interaction