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2 edition of structure of the choanae of the Emydinae (Testudines, Testudinidae) found in the catalog.

structure of the choanae of the Emydinae (Testudines, Testudinidae)

Thomas Sturges Parsons

structure of the choanae of the Emydinae (Testudines, Testudinidae)

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Published by The Museum in Cambridge .
Written in English

    Subjects:
  • Chelonia.

  • Edition Notes

    Bibliography: p. 127.

    SeriesBulletin of the Museum of Comparative Zoology at Harvard College,, v. 123, no. 4
    Classifications
    LC ClassificationsQL1 .H3 vol. 123, no. 4
    The Physical Object
    Pagination[111]-127p.
    Number of Pages127
    ID Numbers
    Open LibraryOL218714M
    LC Control Numbera 60005609
    OCLC/WorldCa4421960

    Anatomically, the nose can be divided into an external component and the nasal cavity. 4 The external nose consists of a bony vault posterior superiorly, a cartilaginous vault anteriorly, and the lobule at the inferior-anterior aspect (see Figure ). 3 The cavity of the nose is divided into bilateral compartments by the nasal septum and continues posteriorly from the nostrils (nares), to.


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structure of the choanae of the Emydinae (Testudines, Testudinidae) by Thomas Sturges Parsons Download PDF EPUB FB2

The structure of the choanae of the Emydinae (Testudines, Testudinidae) by Thomas Sturges Parsons,The Museum edition, in EnglishPages: Download PDF: Sorry, we are unable to provide the full text but you may find it at the following location(s): ersitylibrary (external link)Author: T S Parsons.

The choana (plural choanae), posterior nasal aperture or internal nostril is one of two openings found at the back of the nasal passage between the nasal cavity and the throat in tetrapods with secondary palates, including humans and other mammals (as well as crocodilians and most skinks).

In animals with secondary palates, they allow breathing when the mouth is :   Description. The Choanae are the posterior nasal aperture, separated by the vomer.

It is the opening between the nasal cavity and the nasopharynx. It is therefore not a structure but a space bounded as follows. The structure of the choanae of the Emydinae (Testudines, Testudinidae). Bull. Mu-seum Comp. Zool. Harvard Coll. Variation in the structure of the choanae of turtles.

The structure of the choanae of the Emydinae (Testudines, Testudinidae) VolumePage On Burmese earthworms of the family Megascolecidae.

VolumePage If you are generating a PDF of a journal article or book chapter, please feel free to enter the title and author information. The nasal cavity is divided into two lateral compartments separated down the middle by the nasal nasal cavity communicates anteriorly through the nostrils and posteriorly with the nasopharynx through openings called nasal cavities and septum are lined with a mucous membrane and are richly vascularized by branches of the maxillary, facial, and ophthalmic arteries.

Palate structure and development in the alligator Plate 1. Fig. Palatal view of the skull of a 13 foot long alligator. Note the palatal processes of the premaxillae (P), maxillae (M), palatines (PAL) and pterygoids (PT).

Also indicated are the posterior choanae (PC), posterior palatine foraminae (PP) and incisive foramen (I), x Fig. A 'read' is counted each time someone views a publication summary (such as the title, abstract, and list of authors), clicks on a figure, or views or downloads the full-text.

choanae. The dense support-material that can be palpated at the tip or your nose is composed of. cartilage. The _____ is an elastic cartilage structure, which functions to seal off the glottis during swallowing as the tongue pushes it downward toward the larynx.

epiglottis. Choana (plural: Choanae) is the posterior nasal aperture. The choanae are separated by the vomer. Boundaries. It is the opening between the nasal cavity and the nasopharynx. It is therefore not a structure but a space bounded as follows: anteriorly and inferiorly by the horizontal plate of palatine bone, superiorly and posteriorly by the.

structure (Parsons, ); rostral pores and mental glands (Winokur and Legler,). Goeldi () described the eggs, and Bickham and Baker () the karyotype. • ILLUSTRATIONS. Pritchard () shows color photographs of adults; black.

The canine and feline upper and lower respiratory tracts are indistinctly divided at the anatomic convergence of the tricomuscular region and the trachea.

1 The paired nasal cavities, their surrounding sinuses, the pharynx, and larynx broadly define the upper airway system. 2 For purposes of this article the ensuing discussion will be limited solely to the diagnostic evaluation of the nasal.

The nasopharynx is continuous with the nasal cavity through the arched openings called choanae. The auditory tubes, also known as the pharyngotympanic or eustachian tubes, connect the middle ear to the pharynx and open into the lateral walls of the nasopharynx.

The auditory tubes allow middle ear pressure to equalize with atmospheric pressure. + +. book is complete, correct, current, or applicable to every situation. BDSRA disclaims all warranties express or implied, concerning this book and the information contained herein. If medical or other expert assistance is required, the services of a competent professional should be attained.

Nancy Carney, RN. Batten Disease Support and Research. The bones of the cranium don’t just protect your skull. Some delicate bones form your beautiful face. The facial bones don’t move much, except for the jawbone (which for some people moves a lot).These facial bones form the face by completing the orbits, leaving room.

internal nares or choanae, except in mammals and crocodilians where the de-velopment of the secondary palate has led to their communicating with the pharynx more directly.

The choanae of caecilians are guarded by fleshy ‘valves’ which, in the Typhlonectidae, are large (as are the choanae) and conspicuously superficial. The structures known as choanae may seem obscure. But we've all got them; they are the ‘internal nostrils’ that form the passage between our nasal cavity and throat that we use for breathing.

The nasal cavity extends in an antero-posterior direction from the nostrils, or nares, to the choanae. The choanae are the posterior apertures of the nose. Each choana is bounded medially by the vomer, inferiorly by the horizontal plate of the palatine bone, laterally by the medial pterygoid plate, and superiorly by the body of the sphenoid.

Anteriorly the nasopharynx is in continuation with the posterior choanae of the nose, with the posterior ends of the three turbinates on each side and the posterior edge of the nasal septum in the midline On the lateral wall there are the openings of the Eustachian tubes Behind these are the aggregation of lymphoid tissue called tonsil of torus.

Question: Respiratory Pathway + Your Task Is To List The Structures/passageways/-in Order--that A Molecule Of Oxygen Would Take From Through The Body From Your Nostrils (external Nares) Into Blood And Then Through The Cardiovascular System To The Left Frontal Lobe Of The Brain.

Diagrams And A Word Bank Have Been Provided For Your Use. List The Structures On The. A funnel or funnel-shaped opening; an infundibulum. (anatomy, zoology) An opening towards the back of the nasal cavity; the posterior nasal aperture.

William E. Duellman, Biology of Amphibians‎[1], page The choanal glands of caecilians open at the margin of the choanae, whereas those of salamanders open deep within the choanae at the. congenital occlusion of the choanae of the nose * H.

McNaught * Read before the Forty-sixth Annual Meeting of the Medical Society, State of California, Coronado, April, Saved Match the respiratory system structure with its description. Visible structure on the face (Click to select) 2. Extends from the nares to the choanae Click to select) 3.

Common opening for digestive and respiratory systems Click to select) 4. Located posterior to the choanae and superior to the soft palate (Click to select) 5. Full text Full text is available as a scanned copy of the original print version. Get a printable copy (PDF file) of the complete article (K), or click on a page image below to browse page by page.

Important Structures of the Nasopharynx. Choanae: The entrance from the back of the nose into the nasopharynx. There are two choanae, one from either side from the nose, which are divided by the nasal septum. If a tumor were to block one of these, it would prevent the flow of air and make it difficult to breathe from that side of the nose.

The human nose is the most protruding part of the bears the nostrils and is the first organ of the respiratory is also the principal organ in the olfactory shape of the nose is determined by the nasal bones and the nasal cartilages, including the nasal septum which separates the nostrils and divides the nasal cavity into two.

To examine the structure of the external nose and identify the anterior (nares) and posterior (choanae) openings of the nasal cavity. To define the vestibule, respiratory and olfactory areas of the nasal cavity and identify the major structural features of the nasal cavity including the conchae, meatuses.

Choanal atresia is a congenital narrowing at the posterior choanae (the area from the nare to the nasopharynx).

This is purely bony in 30% of cases and mixed bony and membranous in 70% of cases. Choanal atresia • Between weeks of gestation, there is a formation of primitive nasal about the same time, nasal pits form and. Match each of the structures of the nephron w/ its description, function or location A.

distal convoluted tubule B. glomerulus C. Bowman capsule D. Henle loop E. proximal convoluted tubule name given to the blood vessel in Bowman capsule Ccup- shaped structure surrounding the glomerulus tube nearest Bowman capsule.

We have analysed the structure of cultivable choanal microbiota from free-living birds in relation to bird diet, its richness and the relative number of opportunistic bacteria acquired from the environment.

For this purpose, we have taken choanal swabs from 25 free-living birds representing 13 different bird species captured in Slovenia. The pharyngeal tonsils, more commonly referred to as the adenoids, are lymphoid tissue structures located in the posterior wall of the nasopharynx.

Polyps or mucus can obstruct the nasopharynx, as can congestion due to an upper respiratory infection. The eustachian tubes connect the middle ear to the pharynx and open into the nasopharynx. It will be seen from the figure on Plate xv that the descending processes of the prefrontals have been forced by pressure into the choanae.

In the Cheloniidce, through the development of horizontal laminae from the vomer, the maxillaries, and the palatines, the choanae are. The best books on Ethiopia: Beneath the Lion’s Gaze by Maaza Mengiste, Nega Mezlekia’s Notes from the Hyena’s Belly and Cutting for Stone by Abraham Verghese.

This book discusses allergy and its allied conditions. Organized into six sections encompassing 41 chapters, this edition begins with an overview of anatomical structure of the nose. This text then explores the various processes of examination of the cavities of the nose, pharynx, larynx, and ear.

Aithiopika = Aethiopica = Aethiopica, Heliodorus Chariclea, the daughter of King Hydaspes and Queen Persinna of Ethiopia, was born white through the effect of the sight of a marble statue upon the queen during pregnancy (an instance of the theory of maternal impression).

Fearing accusations of adultery, Persinna gives her baby daughter to the care of Sisimithras, a gymnosophist, who takes /5(48). The computed tomography image (CTI)-assisted evaluation of 63 patients by Brown et al. included almost exclusively descriptions of bony choanal occlusions.

These are structurally homogenous in 29% of the cases but show a mixed bony cartilaginous structure in 71% of cases. This distribution ratio can be described as following a 2: 1 rule. Study 87 Respiratory Anatomy flashcards from William C.

on StudyBlue. The Olfactory receptor axons located in the upper one-third of the nasal cavities pass through the CRIBRIFORM PLATE of ethmoid bone to connect with the olfactory bulb situated above the plate, on either nasal cavity. The choanae were located at the level of caudal face of second molar tooth and continued caudally into nasopharynx.

The dorsal nasal turbinate was the longest and extended from level of third transverse rugae of hard palate to level of cribriform plate of ethmoid bone and it. Among fossil fishes and stem-tetrapods, the air-breathing behaviour was described based on anatomical structures and organs, such as spiracles, skeletal buccal pump components, cranial ribs, well-developed pleural ribs, integumentary dermal skeleton, choanae and calcified lungs.

However, due to the rarity of soft tissue preservation in the. Structure. The vomer is situated in the median plane, but its anterior portion is frequently bent to one side.

It is thin, somewhat quadrilateral in shape, and forms the hinder and lower part of the nasal septum; it has two surfaces and four borders. The surfaces are marked by small furrows for blood vessels, and on each is the nasopalatine groove, which runs obliquely downward and forward.Welcome to a whole test on the Respiratory system, related to the 'Young adult' case unit.

It also contains some questions from the "Fetal" case unit (hemoglobin dissociation curve, surfactant questions).

This test has more than 50 questions on this topic, so, attempt all the questions and examine your knowledge. A nasopharynx examination inspects the posterior naspharyngeal wall, posterior choanae, fossa of Rosenmueller, eustachian tube orifices, and the superior aspect of the soft palate.

The nasal/sinus examination involves the inspection of the above mentioned areas in addition to the spheno-ethnoidal recess.