God is our Guide  Number 1 site for helping reverse diseases on Planet Earth


Diet anti-inflammatory
Burning  Feet Home
Services Page
Chronic Fatigue
Autoimmune diseases
Bible healing
Celiac disease
Diabetic polyneuropathy

Polyneuropathy treatment


ALA in diabetes

Reversing diabetes

Brown rice

Diabetic study halted

Broccoli in Diabetics

Diabetic amytrophy

Anemia &celiac disease


Adverse reaction to smallpox vaccine


Vaccination & Autism

Smallpox Vaccination

Vaccination Guide

Gardasil Facts

WHO caused Aids


Electronic treatments

Cure all diseases

women athletes


Areata Alopecia


heart disease & stroke 

Electrical Stimulation Therapy


new treatment

 Sand Bath


 Sulphur Bath

 Massage & Cancer Cure

 Quick Heart Cure

 Say No TO FORCED vaccination

  Massage Benefits Parkinson

 Curry Powder

 Water chestnut 

 Sweet potatoes highest vitamin

 Vaginal Infection   Foundation

   alternatives treatment of autoimmune disease read our e-book 

Special Google Health Search

Nervous System                       


Neurons and Nerves
The Brain
Spinal Cord
Peripheral Nervous System
Autonomic Nervous System
Senses: Sight, Senses, Smell, Taste, Sences, Senses
Higher Functions
Altered States


Return to Senses main page

    • Smell (see location of the various components in Figure 09):

      Sense of Smell
    • Nasal cavity - This a large air space above and behind the nostril. Three shelf-like ridges of bone (nasal conchae) are there to deflect air. In normal breathing, air flows through the lower part of the cavity, past the rear of the soft palate and into the throat (Figure 16). A good sniff sends the odor eddying up into the roof of the nasal cavity, where it comes into contact with the olfactory apparatus.
    • Mucus layer - Only those odor molecules that can be dissolved in the mucus, become the stimulants to the receptor sites on the cilia.
    • Figure 16 Sense of Smell
      [view large image]

    • Cilia - These are the hairlike projections from the olfactory sensory cells, and trigger the sensory cells to generate nerve signals if the receptors recognize the shape of the odor molecules. It is estimated that the human nose contains about 1000 different types of olfactory neurons, each type able to detect a particular set of chemicals.
    Olfactory Bulb
  • Bowman's gland - This gland makes the mucus.
  • Olfactory sensory cell - It is embedded in the olfactory epithelium. Nerve signals pass upward along the cell body, which narrows into a wire-shaped nerve fiber, or axon. The axons from thousands of sensory cells group into bundles and convey their nerve signals to the olfactory bulb.
  • Olfactory bulb - In this structure, the axons form complicated ball-shaped sets of connections with the mitral cells. These connection area are olfactory glomeruli, and there are hundreds in each olfactory bulb (see Figure 17). Each glomerulus receives signals from more than 25000 sensory cells and has tens of thousands of connections from the mitral cells in the bulb itself. Much sorting and processing of the signals takes place in the glomeruli. The resulting nerve messages are sent along the olfactory tract to the olfactory area in the brain.
  • Figure 17 Olfactory Bulb
    [view large image]

  • Go to smell and taste