Olfactory Bulb | A neural structure of the forebrain involved in the sense of smell; receives neural input about odours detected by cells in the nasal cavity. | | | |
Olfactory Receptor Cells | Neurons located in the olfactory epithelium that contain receptors for odorant molecules; they send signals to the brain when these molecules are detected. | | | |
Olfactory Cilia | Hair-like extensions on the olfactory receptor cells that increase the surface area for detecting odorant molecules. | | | |
Olfactory Epithelium | A specialized epithelial tissue inside the nasal cavity responsible for detecting odors. | | | |
Axons | Long, slender projections of neurons that conduct electrical impulses away from the neuron's cell body to the olfactory bulb. | | | |
Glomeruli | Structures within the olfactory bulb where synapses form between the axons of the olfactory receptor neurons and the dendrites of other neurons. | | | |
Basal Cells | Stem cells in the olfactory epithelium that can differentiate into new olfactory receptor neurons. | | | |
Nasal Bone | The bones that form the bridge of the nose. | | | |
Upper Lateral Cartilage | Cartilage that helps to shape the mid-section of the nose. | | | |
Lower Lateral Cartilage | Also known as alar cartilage, these cartilages shape the nostrils and contribute to the form of the nasal tip. | | | |
Septal Cartilage | Cartilage forming the septum, which divides the nasal cavity into two chambers. | | | |
Columella | The tissue that links the nasal tip to the nasal base, influencing the nasal tip's angle and support. | | | |
Middle Crus | The part of the lower lateral cartilage that contributes to the shape of the nasal tip. | | | |
Lateral Crus | The part of the lower lateral cartilage that contributes to the structure and shape of the nostril walls. | | | |
Nasal Septum | The bone and cartilage wall that separates the nasal cavity into two separate chambers. | | | |
Minor Alar Cartilages | Smaller cartilages that provide additional structure and contour to the nose. | | | |
Sphenoid Sinus | An air-filled space within the sphenoid bone, part of the paranasal sinus system. | | | |
Frontal Sinus | One of the four pairs of paranasal sinuses, located in the frontal bone, just above the eyes. | | | |
Maxillary Sinus | A pair of sinuses located in the maxillary bones, the largest of the sinuses. | | | |
Ethmoidal Air Cells | Numerous small air cells within the ethmoid bone that form part of the paranasal sinus system. | | | |
Cribriform Plate | A sieve-like structure at the base of the skull that allows the passage of the olfactory nerves from the nasal cavity to the olfactory bulb. | | | |
Radix | The root or beginning of the nose where it meets the forehead. | | | |
Pinion | The outermost part of the nasal bones where they join with the cartilage. (Note: Pinion is not a standard anatomical term and may vary in use.) | | | |
Sesamoid Cartilages | Additional small cartilages found near the nasal tip, often manipulated in nasal surgery. | | | |
Fibro-Areolar Tissue | Connective tissue layer that covers the cartilages and muscles of the nose, allowing for the flexibility of the nasal tip. | | | |
Anterior Nasal Spine | A bony projection of the maxilla at the base of the nose that provides attachment for the columella. | | | |
Turbinates/Conchae | Long, narrow shelves of bone that protrude into the nasal cavity; they increase the surface area of the nasal passages, aiding in warming and humidifying inhaled air. | | | |