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Olfactory glands, Bowman's glands nose, olfactory region mucous 27 Paneth cells: small intestine: serous 28 Gley's glands, Sandstroem's glands, parathyroid gland: in the neck parathyroid hormone: 29 Parietal cell: stomach: hydrochloric acid, intrinsic factor: dynamic canaliculi 30 Parotid gland: mouth: saliva tubulo-alveolar 31 Peyer's patches ...
The fossa has several scent glands. Like herpestids it has a perianal skin gland inside an anal sac which surrounds the anus like a pocket. The pocket opens to the exterior with a horizontal slit below the tail. Other glands are located near the penis or vagina, with the penile glands emitting a strong odor. Like the herpestids, it has no ...
The anterior olfactory nucleus is the memory hub for smell. [24] When different odor objects or components are mixed, humans and other mammals sniffing the mixture (presented by, e.g., a sniff bottle) are often unable to identify the components in the mixture even though they can recognize each individual component presented alone. [25]
The olfactory bulb transmits smell information from the nose to the brain, and is thus necessary for a proper sense of smell. As a neural circuit, the glomerular layer receives direct input from afferent nerves, made up of the axons from approximately ten million olfactory receptor neurons in the olfactory mucosa, a region of the nasal cavity.
The olfactory epithelium is a specialized epithelial tissue inside the nasal cavity that is involved in smell. In humans, it measures 5 cm 2 (0.78 sq in) [1] and lies on the roof of the nasal cavity about 7 cm (2.8 in) above and behind the nostrils. [2] The olfactory epithelium is the part of the olfactory system directly responsible for ...
In mammals, glomeruli typically range between 50-120 μm in diameter and number between 1100 and 2400 depending on the species, with roughly between 1100 and 1200 in humans. [ 1 ] [ 2 ] The number of glomeruli in a human decreases with age; in humans that are over 80 they are nearly absent. [ 5 ]
Superficial anatomy or surface anatomy is important in human anatomy being the study of anatomical landmarks that can be readily identified from the contours or other reference points on the surface of the body. [1] With knowledge of superficial anatomy, physicians gauge the position and anatomy of deeper structures.
Scenthounds as a group can smell one- to ten-million times more acutely than a human, and bloodhounds, which have the keenest sense of smell of any dogs, [41] have noses ten- to one-hundred-million times more sensitive than a human's. They were bred for the specific purpose of tracking humans, and can detect a scent trail a few days old.