• Title/Summary/Keyword: non-sensory cilia

Search Result 5, Processing Time 0.02 seconds

The Anatomy and Histoarchitecture of the Olfactory Organ in the Korean Flat-Headed Goby Luciogobius guttatus (Pisces; Gobiidae)

  • Kim, Hyun-Tae;Park, Jong-Young
    • Applied Microscopy
    • /
    • v.46 no.1
    • /
    • pp.51-57
    • /
    • 2016
  • The histology and anatomy of the olfactory organ in Luciogobius guttatus was investigated using a light microscopy and scanning electron microscopy. The paired olfactory organs in the dorsal part of the snout are situated in between the upper lip and the eyes. They consist of two nostrils, one anterior and the other posterior openings, and a single olfactory cavity. The anterior nostril, an incurrent opening, forms a short tubular structure from the skin. The posterior nostril, an excurrent opening, forms a circular structure opened to the exterior. The distributional pattern of the sensory epithelium is a continuous type. The sensory epithelium with numerous-motile cilia is made up of receptor cells, supporting cells, basal cells, and mucous cells. In contrast, the non-sensory epithelium is comprised of stratified epithelial cells and two types of mucous cells, acidic and neutral cells. The cilia number of the receptor cell is in range of 3 to 4 units. Such results in L. guttatus may reflect its ecological habit and microhabitat in the tidal zone with a periodic tide.

Microscopic Characteristics of the Olfactory Organ in the Gluttonous Goby Chaenogobius gulosus(Pisces, Gobiidae), Compared to Sympatric Intertidal Gobies (별망둑 the gluttonous goby Chaenogobius gulosus 후각기관의 해부, 조직학적 특성 및 동소 망둑어과 출현종들과의 비교연구)

  • Kim, Hyun Tae;Park, Jong Young
    • Korean Journal of Ichthyology
    • /
    • v.33 no.1
    • /
    • pp.1-7
    • /
    • 2021
  • Using stereo, light, and scanning electron microscopes, we researched the anatomical and histological structure of Chaenogobius gulosus's olfactory organ and compared it to those of sympatric gobies Luciogobius guttatus and Favonigobius gymnauchen. Results revealed the following common characteristics: i) tubular anterior nostril (AN) and flat posterior nostril (PN), ii) a single longitudinal lamella, iii) two accessory nasal sacs (ANS, ethmoidal and lacrimal), iv) abundant sensory epithelium lymphatic cells (LC), v) an eosinophil cell, and vi) a ciliary length a quarter of the knob diameter in the olfactory receptor neuron (ORN). Some characteristics are specific to C. gulosus and different from the other two gobies: i) 0.5~1.0 mm AN and 0.2~0.5 mm PN (vs. 0.2~0.3 mm and 0.2~0.3 mm in L. guttatus; 0.2~0.4 mm and 0.1~0.3 mm in F. gymnauchen), ii) two ANS (vs. absence in L. guttatus; two in F. gymnauchen), iii) abundant LC (vs. low in L. guttatus and F. gymnauchen), iv) low density non-sensory cilia on the lamellar surface (vs. high in L. guttatus; low in F. gymnauchen), and v) a quarter ciliary length to knob diameter ratio in the ORN (vs. mixture of a quarter to equal ratio in L. guttatus; two or three times in F. gymnauchen). From these results, we confirmed the C. gulosus olfactory organ has adapted anatomically and histologically to the sand-rock tidal zone.

A Study on the Structure of Peripheral Olfactory Organ in the Korean Mudskipper, Scartelaos gigas (Pisces, Gobiidae) (한국산 남방짱뚱어 Scartelaos gigas의 후각기관 구조에 관한 연구)

  • Kim, Hyun Tae;Lee, Yong Joo;Park, Jong Sung;Park, Jong Young
    • Korean Journal of Ichthyology
    • /
    • v.26 no.4
    • /
    • pp.281-287
    • /
    • 2014
  • An olfactory organ in Scartelaos gigas, so-called mudskipper known as adaptation to an amphibious lifestyle, was investigated anatomically and histologically. S. gigas possessed the paired olfactory organ comprising respectively the one elongated canal and two nasal sacs, lacrimal and ethmoidal nasal sac. The sensory epithelium developed partly in the canal contained four distinct types of cells: (1) receptor cell with 3 to 4 cilia in number, (2) supporting, (3) basal, (4) mucus cell. The sensory epithelium was also of transitional layer as multi cellularity structure. The non-sensory epithelium had no sensory elements. The two nasal sacs possessed typically a lot of mucin droplets. These results might be considered that anatomical structure and histological characters of the olfactory organ showing in S. gigas is adapted to semi-aquatic life associated with its ecological habit and habitat.

Microscopic research on the olfactory organ of the Far Eastern brook lamprey Lethenteron reissneri (Pisces, Petromyzontidae)

  • Hyun-Tae Kim;Jong-Young Park
    • Applied Microscopy
    • /
    • v.50
    • /
    • pp.18.1-18.7
    • /
    • 2020
  • The olfactory anatomy and histology of Lethenteron reissneri were researched using a stereo microscope, a light microscope, and a scanning electron microscope. As in other lampreys, it shows same characters as follows: i) a single olfactory organ, ii) a single tubular nostril, iii) a single olfactory chamber with gourd-like form, iv) a nasal valve, v) a nasopharyngeal pouch, vi) a sensory epithelium (SE) of continuous distribution, vii) a supporting cells with numerous long cilia, viii) an accessory olfactory organ. However, the description of a pseudostratified columnar layer in the SE and Non SE is a first record, not reported in sea lamprey Petromyzon marinus. In particular, both 19 to 20 lamellae in number and olfactory receptor neuron's quarter ciliary length of the knob diameter differ from those of P. marinus. From these results, it might be considered that the olfactory organ of L. reissneri shows well adaptive structure of a primitive fish to slow flowing water with gravel, pebbles, and sand and a hiding habit into sand bottom at daytime. The lamellar number and neuron's ciliary length may be a meaningful taxonomic character for the class Petromyzonida.

The Anatomy and Histology of the Olfactory Organ in the Korean Sand Goby Favonigobius gymnauchen (Pisces, Gobiidae) (한국산 날개망둑 Favonigobius gymnauchen (Pisces, Gobiidae) 후각기관의 해부 및 조직학적 연구)

  • Kim, Hyun Tae;Kim, Hyeong Su;Park, Jong Young
    • Korean Journal of Ichthyology
    • /
    • v.28 no.1
    • /
    • pp.28-34
    • /
    • 2016
  • The anatomy and histology of the olfactory organ in Favonigobius gymnauchen was investigated using a stereo microscopy, light microscopy and scanning electron microscopy. The paired olfactory organs in the dorsal snout are set in between the upper lip and the eyes. These organs are composed of two openings (anterior nostril with a tubular structure and posterior nostril), a single olfactory cavity, two nasal sac (ethmoidal and lacrimal sacs), olfactory nerve and olfactory bulb. The distributional pattern of the sensory epithelium is a only one type (continuous type). This epithelium is made up of the receptor cell, supporting cell and basal cell. The receptor cell has a only one type (ciliated receptor cell with 3~4 cilia). The non-sensory epithelium is built of the stratified epithelial cells and has mucous openings on the surface. Such an olfactory organ in F. gymnauchen may be considered to reflect its ecological habitat as a shallow water or tidal pool in the coastal zone.