Olfactory receptors also have to be replaced as they naturally die off about every 5 to 8 weeks. Unlike taste buds, there are more than five types of olfactory receptors. There are actually at least 1,000 of them. The Olfactory Bulbs The olfactory bulbsare located right on top of the sinus cavity on each side of the brain directly beneath the frontal lobe. The olfactory receptors send their neural signals directly p to these bulbs by passing the thalamus, the relay center for all other senses. Somesthetic Senses: What the Body Knows What is thought of as the sense of touch is really several sensations, originating in several different places in and on the body. It's really more accurate to refer to these as the body senses, or somesthetic senses. The first part of the word, soma, means body. The second part, esthetic, mean feeling. There are three somesthetic sense systems: the skin senses(having to do with pressure, temp, and pain), the kinesthetic sense(having to do with the location of body parts in relation to the ground and to each other), and the vestibular senses(having to do with movement and body position). PERCEPTION OF TOUCH, PRESSURE, AND TEMPERATURE 3.7 what allows people to experience the sense of touch, pain, motion, and balance?