Tag: nose

Bowman's glands are branched tubular glands in the olfactory mucous membrane. The structure of the Bowman's glands consists of an acinus in the lamina propria and a secretory duct going out through the olfactory epithelium. Bowman's glands secrete proteins, such as lysozyme, amylase and IgA similar to serous glands. 

•  Humans possess a tiny, shiny crystal of magnetite in the ethmoid bone, located between your eyes, just behind the nose.
•  Magnetite is a magnetic mineral also possessed by homing pigeons, migratory salmon, dolphins, honeybees, and bats is a tiny compass needle, allowing them to orient themselves in the earth's magnetic field and swim down to their happy home in the mud. Hence, Some persons have an innate sense of direction. It is due to the magnetic sensitivity of the Nose.

 Both olfactory receptors and sound receptors have cilia. The different senses are taste, smell, vision and auditory senses. In humans, specialized sensory receptors are present in distinct sense organs that detect the sensory stimuli and transmit the stimuli as nerve impulses to the brain.

The following are disorders of olfaction: Anosmia inability to smell. ysosmia things smell different from memory or expectation. Hyperosmia an abnormally acute sense of smell. Hyposmia decreased ability to smell.

Fact:
On increasing age,olfactory sensation decreases. In female humans, the sense of olfaction is strongest around the time of ovulation, significantly stronger than during other phases of the menstrual cycle and stronger than the sense in males.

(A)Audition is the sense of hearing.

Olfactory receptors are found in nose. They are associated with the perception of smell. Olfactory receptors expressed in the cell membranes of olfactory receptor neurons are responsible for the detection of odor molecules. Activated olfactory receptors are the initial player in a signal transduction cascade which ultimately produces a nerve impulse which is transmitted to the brain.