nostril
(nares) An external opening of the nose leading into the nasal cavity.
notochord
A longitudinal, flexible rod formed from dorsal mesoderm and located between the gut and the nerve cord in all chordate embryos.
nostrils
Source: Noland, George B. 1983. General Biology, 11th Edition. St. Louis, MO. C. V. Mosby
...
The nostrils of bony fishes open only to the outside and are used for smelling. Some of the lobe-finned fishes developed internal openings to their nostrils. This made it possible to breath air with the mouth closed as modern lungfishes do.
nares Nostrils; the openings in the nose through which air enters.
nastic movement A plant's response to a stimulus in which the direction of the response is independent of the direction of the stimulus. Non-directional plant movements.
blowhole The nostrils, or nasal openings, of cetaceans.
blubber The fat found between the skin and muscle of whales and other cetaceans, from which oil is made.
Inside the aperture of the nostril is a slight dilatation, the vestibule, bounded laterally by the ala and lateral crus of the greater alar cartilage, and medially by the medial crus of the same cartilage.
For example, you can induce a chick embryo to have eyes that are very close together and instead of two nostrils in the beak, you actually have a single middle one.
(Science: botany) The larva of an American fly (Compsomyia macellaria), allied to the blowflies, which sometimes deposits its eggs in the nostrils, or about wounds, in man and other animals, with fatal results. Screw wrench.
If peeled pieces of apple are placed in one bowl, and peeled pieces of potato in another, and then the nostrils are held completely closed while a piece from one bowl is sampled, the taste of apple and potato are indistinguishable.
Then the virus is sprayed up the nostrils of the patients. The virus attaches to cells inside the nose and lungs and reproduces by inserting part of itself into them. As it inserts its DNA into these cells, it also inserts the corrected gene.
Brachiosaurs, as shown below, were different from other sauropods in having their forelegs longer than their hind legs, as well as having their nostrils high on the forehead.
The temporalis and masseter muscles, derived from the external adductor, close the mammalian jaw. Mammals have a secondary palate, a bony structure separating their nostril passages and throat, so most can swallow and breathe simultaneously.
 See also: Animals, Animal, Human, Trans, Organ
|
