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Inspirational organ of most cartilaginous fish
Spiracles (/ˈspɪrəkəl, ˈspaɪ-/) are openings on the surface of some animals, which usually lead to respiratory systems. The spiracle is a small hole behind
Spiracle_(vertebrates)
Topics referred to by the same term
Spiracle or spiraculum may refer to: Spiracle (arthropods), opening in the exoskeletons of some arthropods Spiracle (vertebrates), openings on the surface
Spiracle
Opening in the exoskeletons of some arthropods
A spiracle or stigma is the opening in the exoskeletons of insects, myriapods, velvet worms and many arachnids to allow air to enter the trachea. Insect
Spiracle_(arthropods)
Clade of tetrapods
vertebrate animals belonging to the clade Amniota, a large group that comprises the vast majority of living terrestrial and semiaquatic vertebrates.
Amniote
Evolution of tetrapods to live on land
tetrapods during the Late Devonian period. This transition allowed these vertebrates to escape competitive pressure from other aquatic animals and explore
Vertebrate_land_invasion
Organ that allows fish to breathe underwater
already oxygenated by the true gills. The spiracle is thought to be homologous to the ear opening in higher vertebrates. Most sharks rely on ram ventilation
Fish_gill
Animals without a vertebral column
deviates from the normal, vertebrates. This has been said to be because researchers in the past, such as Lamarck, viewed vertebrates as a "standard": in Lamarck's
Invertebrate
Clade of the first four-limbed vertebrates and their descendants
defined as the "clade of limbed vertebrates", including all vertebrates descended from the first limbed vertebrates. A portion of tetrapod scientists
Tetrapod
Cartilaginous tube
used for a very different organ than in vertebrates. The respiratory system of insects consists of spiracles, tracheae, and tracheoles, which together
Trachea
Respiratory organ in aquatic animals
already oxygenated by the true gills. The spiracle is thought to be homologous to the ear opening in higher vertebrates. Most sharks rely on ram ventilation
Gill
non-tetrapod osteichthyans, the basisphenoid contains grooves for the spiracle. It is typically absent in teleosts. In many osteichthyans, including early
Basisphenoid
Individual opening to a gill
to exit, but closing to prevent reverse flow. A modified slit, called a spiracle, lies just behind the eye, which assists the shark with taking in water
Gill_slit
Extinct genus of tetrapodomorphs
from swimming fish to four-legged vertebrates. This and similar animals might be the common ancestors of all vertebrate terrestrial fauna. The first Tiktaalik
Tiktaalik
Type of lung commonly found in arachnids
(spiracle), which provides a controlled environment for respiration. Book lungs are not related to the balloon-like lungs of terrestrial vertebrates (tetrapods)
Book_lung
Portion of the ear
with the spiracle of fishes, an opening from the pharynx to the side of the head in front of the main gill slits. In fish embryos, the spiracle forms as
Middle_ear
Class of jawed cartilaginous fish
water in through their spiracles and out through their gills. However, this is only a general rule and many species differ. A spiracle is a small hole behind
Chondrichthyes
Species of beetle
about 40 mm (1.6 in) and are white with a brownish-black head and brown spiracles along the sides of the body. The larvae will molt twice before winter
Cotinis_nitida
Study of the form or morphology of fishes
to fulfilling their many other biological functions. Fish are vertebrates. All vertebrates are built along the basic chordate body plan: a stiff rod running
Fish_anatomy
Order of fishes in the superorder Batoidea
the head. The eyes and well-developed spiracles are located on the top of the head. In most species, the spiracles are large and are the main means of drawing
Rajiformes
Diverse clade of vertebrate animals
and the lobe-finned fish (Sarcopterygii, which gave rise to all land vertebrates). The oldest known fossils of bony fish are about 436 million years old
Osteichthyes
Extinct genus of tetrapodomorphs
Devonian of what is now Greenland. It was among the earliest four-limbed vertebrates ever in the fossil record and was one of the first with weight-bearing
Ichthyostega
Scientific study of how the component parts of fish function together in the living fish
already oxygenated by the true gills. The spiracle is thought to be homologous to the ear opening in higher vertebrates. Most sharks rely on ram ventilation
Fish_physiology
Genus of fishes
differently. In shallow water, Polypterus inhales primarily through its spiracle (blowhole). Exhalation is powered by muscles in the torso. During exhalation
Polypterus
Genus of beetles
Marcus J. Byrne and Frances D. Duncan (2003). "The role of the subelytral spiracles in respiration in the flightless dung beetle Circellium bacchus" (PDF)
Flightless_dung_beetle
Suborder of fishes
during non-mating seasons. Spiracles are small openings that allow some fish and amphibians to breathe. Stingray spiracles are openings just behind its
Stingray
"Obviously vertebrates must have had ancestors living in the Cambrian, but they were assumed to be invertebrate forerunners of the true vertebrates — proto-chordates
Timeline_of_human_evolution
Many-legged arthropods with elongated bodies
tracheal system, typically with a pair of openings, or spiracles, on each body segment. The spiracles lead to long tracheae and tracheoles that mediate oxygen
Centipede
Kenneth (2019). Vertebrates: Comparative Anatomy, Function, Evolution. McGraw-Hill. pp. 51–56. Kardong, Kenneth (2019). Vertebrates: Comparative Anatomy
Shark_anatomy
Family of archaic-looking ray-finned fishes
similar to those of lobe-finned fishes. They also have a pair of slit-like spiracles on the top of their heads that are used to breathe air, two gular plates
Bichir
Extinct genus of tetrapodomorphs
It possessed large otic (spiracular) notches, probably accommodating a spiracle rather than a tympanic membrane. Its peculiar stunted forelimbs were tiny
Crassigyrinus
effectively deaf to airborne sound. The otic notch instead functioned as a spiracle, at least in the early forms. Lombard, R. E. & Bolt, J. R. (1979): Evolution
Otic_notch
Animals living on land
desiccation not due to breathing through their skin but due to their spiracles being inefficient at protecting from desiccation, like clitellates they
Terrestrial_animal
Predatory order of arachnids
atrial chamber which opens into a spiracle. Bristles keep the lamellae from touching. A muscle opens the spiracle and widens the atrial chamber; dorsoventral
Scorpion
Bone situated in the neck between the chin and the thyroid-cartilage
which separates the first gill slit from the spiracle, and is often called the hyoid arch. In many vertebrates, it also incorporates elements of other gill
Hyoid_bone
Species of grasshopper
against vertebrate predators. For example, when attacked by mice, the grasshoppers spray the odorous secretion from their metathoracic spiracles while producing
Taeniopoda_eques
Species of beetle
known as the spiracles. These are openings leading to its tracheal network, which is the insect equivalent of the vertebrate lung. The spiracles could be
Augosoma_centaurus
Bone of the middle ear
the hyomandibular, and is part of the gill arch supporting either the spiracle or the jaw, depending on the species. The equivalent term in amphibians
Stapes
Species of butterfly
somewhat square, thorax slightly humped and constricted posteriorly, spiracles pale. Though the larva swarm in April and May in Calcutta on the cultivated
Luthrodes_pandava
Superfamily of flies
metapneustic (with only one pair of spiracles, these on the anal segment of the abdomen), but often with vestigial lateral spiracles (rarely apneustic). The head
Crane_fly
Group of bony fish
are regarded as (at the nearest) a sister group to the Neopterygii. The spiracles of holosteans are reduced to vestigial remnants and the bones are lightly
Holostei
Culinary ingredient
may or may not have spines. In sharks and some primitive bony fish, a spiracle, a small extra gill opening, is found behind each eye. The skull in fishes
Fish_head
sclerotised region on the lateral part of an insect segment, bearing the spiracle, and separating and connecting the tergite and the sternite (compare: pulmonarium)
Glossary_of_entomology_terms
Class of arthropods
several tubes arise in a bundle from a small chamber connected to the spiracle. This type of tracheal system has almost certainly evolved from the book
Arachnid
Superfamily of frogs
and using an axillary grip during amplexus. The larvae have a single spiracle on the left side and complex mouthparts, or in some species, undergo direct
Ranoidea
Type of fossilized remains
since then, and there is now abundant evidence of how all classes of vertebrates are related, including many transitional fossils. Specific examples of
Transitional_fossil
Order of arachnids
insects, where they go through periods where the spiracles are closed, followed by a phase with open spiracles to allow gas exchange. Solifuges are somewhat
Solifugae
Superfamily of amphibians
reproduce via axillary amplexus, and their larvae usually have a single spiracle. The average snout-vent length (SVL) of Hyloidea species vary widely, from
Hyloidea
Part of the gills of a fish
respiratory function, and in elasmobranchs they are the gill arch of the spiracle. The function of the pseudobranch is unknown, but it is believed that it
Pseudobranch
Physiology and biochemistry of insect organ systems
Ephemeroptera, which have tracheal gills and no functional spiracles. Endoparasitic larvae are without spiracles and also operate under a closed system. Here the
Insect_physiology
Paraphyletic group of tetrapodomorphs
earlier fully aquatic forms such as Ichthyostega, it may have formed an open spiracle. In later terrestrial forms such as Seymouria, it may possibly have held
Labyrinthodontia
Process by which gases diffuse through a biological membrane
spiracles, located laterally along the thorax and abdomen. Similar to plants, insects are able to control the opening and closing of these spiracles,
Gas_exchange
Predatory cartilaginous fishes
not covered, but lie in a row behind the head. A modified slit called a spiracle lies just behind the eye, which assists the shark with taking in water
Shark
Genus of flies
instars are fairly similar, C. megacephela are characterized by thicker spiracle hairs in the 2nd and 3rd instars. Chrysomya, like other fly genera, are
Chrysomya
Extinct genus of amphibians
the presence of lateral line grooves and otic notches which likely held spiracles show that they were probably more well-adapted for the water. The tail
Proterogyrinus
External skeleton of an organism
gastropod – Deep-sea gastropod known to incorporate iron into its exoskeleton Spiracle – small openings in the exoskeleton that allow insects to breathe Stolon
Exoskeleton
Primary organ of the respiratory system
evolution in vertebrates and the water-to-land transition, eLife "book lung | anatomy". Encyclopædia Britannica. Retrieved 24 February 2016. "spiracle | anatomy"
Lung
Description of the physical form of insects
the vertebrate lung manner, in some very large species the body musculature may contract rhythmically to forcibly move air out and in the spiracles; this
Insect_morphology
Species of fish
lungs, holoblastic egg development, sexually dimorphic anal fins, and spiracles. In captivity, bichir larvae and juveniles initially show fast growth
Polypterus_bichir
Class of ray-finned bony fishes
dominate the subphylum Vertebrata, comprising over 50% of all living vertebrates. They are the most abundant nektonic aquatic animals and are ubiquitous
Actinopterygii
Species of shark
set at an oblique angle facing backward, serrated and with a notch. The spiracles are small. The first dorsal fin is triangular with a straight leading
School_shark
Order of mites
free-living and predatory forms. They can be recognized by the single pair of spiracles positioned laterally on the body. The family with the most described species
Mesostigmata
Extinct subclass of millipedes
body segments, and extremely tough exoskeletons. There is no evidence of spiracles, so the animals must have used lungs or gills for respiration. Most arthropleurideans
Arthropleuridea
Species of louse
that are common to most insects that chew their food. These lice have spiracles located on the edges of each segment of the abdomen to allow the lice
Bovicola_bovis
Species of spider
from the related family Clubionidae by the placement of the abdominal spiracle. Hibana velox is a relatively small spider, with a body length ranging
Hibana_velox
Evolution of four legged vertebrates and their derivatives
in the evolution of terrestrial forms. With the exception of a pair of spiracles, the gills did not open singly to the exterior as they do in sharks; rather
Evolution_of_tetrapods
Australian palaeontologist
fish, Gogonasus, and a new specimen showing that Gogonasus had large spiracles opening on top of its head. Other discoveries include several new types
John_A._Long
Insects of the order Blattodea
abdomen has ten segments, each having a pair of spiracles for respiration. In addition to the spiracles, the final segment consists of a pair of cerci
Cockroach
Myllokunmingia appear to be true vertebrates, and Haikouichthys had distinct vertebrae, which may have been slightly mineralized. Vertebrates with jaws, such as the
History_of_life
Overview of and topical guide to sharks
animals which are either vertebrates or one of several closely related invertebrates. Fish – gill-bearing aquatic vertebrate (or craniate) animal that
Outline_of_sharks
Order of amphibians
diverse and largely semiaquatic group of short-bodied, tailless amphibian vertebrates composing the order Anura (coming from the Ancient Greek ἀνούρα, literally
Frog
Family of fishes
euhyostyly. Skate's gill slits are located ventrally as well, but dorsal spiracles allow the skate to be partially buried in floor sediment and still complete
Skate_(fish)
Species of shark
not so that binocular vision is extensive. Behind the eyes are large spiracles, positioned on the upper surface of the head. The mouth is short, forming
Cookiecutter_shark
Suborder of mites
worm-like body. The name "Prostigmata" comes from mites of this group having spiracles (stigmata) on the prodorsum, usually between the chelicerae or on its
Prostigmata
Species of fly
12 mm in length. It is characterized by a black to brown anterior thoracic spiracle, a black basicosta, brown wing veins, and dark calypters. Upper calypters
Protophormia_terraenovae
Extinct genus of tetrapods
microsaurs. Many larger Paleozoic amphibians have a wide otic notch for a spiracle between the squamosal and tabular. In Westlothiana, the otic notch is reduced
Westlothiana
Species of fish
than bony fishes; they also have rudimentary lungs and two slit-like spiracles used for exhalation, and can breathe air when there is insufficient oxygen
West_African_bichir
List of organisms from the Tamiami Formation and related units
Squatina (Chondrichthyes) from Florida, with an overview of the associated vertebrate fauna". Bulletin of the Florida Museum of Natural History. 55 (7): 139–155
Paleobiota of the Tamiami Formation
Paleobiota_of_the_Tamiami_Formation
Phylum of worms with a flexible cuticle
nematodes enter the larvae of the gnats by way of their anus, mouth, and spiracles (breathing pores) and then release bacteria which kills the gnat larvae
Nematode
Clade of reptile-like animals
bone in the back of the skull held a deep otic notch, likely holding a spiracle rather than a tympanum. The vertebrae showed the typical multi-element
Reptiliomorpha
Species of amphibian
A lateral white stripe extends from the body to the tail, and a single spiracle is visible from the anus. They lack beak-like mandibles and the specialized
Gastrophryne_carolinensis
Order of arachnids
of spiracles is located between the base of the fourth pair of legs and the abdomen, with one opening on each side. In more active species, spiracles are
Opiliones
Order of insects
series of rings, each with a hole for breathing and respiration, called a spiracle, composing three different segmented sclerites: the tergum, pleura, and
Beetle
Superphylum of bilateral animals
both the Hemichordata and Chordata is pharyngotremy — the presence of spiracles or gill slits into the pharynx, which is also found in some primitive
Deuterostome
Species of beetle
the respiratory, circulatory, digestive, and reproductive systems. The spiracles, which are external openings that allow the N. tomentosus to breathe,
Nicrophorus_tomentosus
Species of longtailed carpet shark
triangular cusps. The eyes are oval in shape and elevated, with a large spiracle below each. The five pairs of gill slits are small, with the fourth and
Epaulette_shark
Species of whale
Lawrence River. Cases have been recorded of ciliate protozoa colonising the spiracle of certain individuals, but they are not thought to be pathogens or are
Beluga_whale
Protein-coding gene in the species Homo sapiens
“empty spiracles” gene. The “empty spiracles gene” is needed for the proper head development/formation as well as the development of posterior spiracles in
EMX2
Species of bamboo shark
lower anal fin. The eyes are oval in shape and elevated, with a large spiracle below each. The five pairs of gill slits are small, with the fourth and
Leopard_epaulette_shark
of fossil fishes described in 2020 is a list of new taxa of jawless vertebrates, placoderms, acanthodians, fossil cartilaginous fishes, bony fishes,
2020_in_paleoichthyology
Family of insects
carbon dioxide, pass through their exoskeleton via tiny valves called spiracles. Insects also lack closed blood vessels; instead, they have a long, thin
Ant
Genus of disease-spreading insects
tsetse is an obligate parasite that lives by feeding on the blood of vertebrate animals. Tsetse flies have been extensively studied because of their role
Tsetse_fly
Family of fishes
resemble a cobblestone road. They have small eyes and behind each is a spiracle, which is used to draw water past the gills. The gill slits, five on each
Sawfish
Order of insects including praying mantises
may also produce a hissing sound by expelling air from the abdominal spiracles. Mantises lack chemical protection, so their displays are largely bluff
Mantis
Clade of amphibians
azygous element, greatly enlarged otic capsules, and a tadpole with paired spiracles and which lacks beaks and denticles. Later genetic work has supported
Pipoidea
Clade of insects
roughly oval and bluntly-pointed at both ends. They have 15 segments and spiracles in each segment for breathing. They have no legs but move within the cell
Bee
Species of amphibian
muddy. They have triangular snouts with a single, sinistral and lateral spiracle. The tail fin is transparent and pointed with moderately developed musculature
Indosylvirana_temporalis
Species of fly
amphipneustic, meaning that both their first and last spiracles are functional. The two spiracle pairs of the respiratory system are on the prothorax and
Sepsis_thoracica
Species of shark
concave. Each eye lacks a nictitating membrane and is followed by a tiny spiracle. The nostrils are split into inflow and outflow openings by a long flap
Horn_shark
Class of marine animals in the subphylum Tunicata
specialized organ helping direct food particles inside. It also possesses two spiracles, each surrounded by a ring of cilia, which direct food particles from
Larvacean
Species of cartilaginous fish
the disc. The eyes are minute and widely spaced; behind them are large spiracles. Between the nostrils is a short curtain of skin with a finely fringed
Giant_freshwater_stingray
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SPIRACLE VERTEBRATES
SPIRACLE VERTEBRATES
Girl/Female
Indian, Telugu
Miracle
Girl/Female
Basque Spanish
Miracle.
Girl/Female
Arabic, Celebrity, Christian, Gujarati, Hindu, Indian, Kannada, Malayalam, Marathi, Muslim, Oriya, Sanskrit, Sindhi, Tamil, Telugu
Miracle
Girl/Female
French
Miracle.
Boy/Male
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Miracle
Girl/Female
American, Australian, Chinese, Christian
An Amazing Wonder
Girl/Female
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Miracle.
Girl/Female
Hindu, Indian, Traditional
Miracle
Female
English
English name derived from the vocabulary word, from Latin miraculum, MIRACLE means "marvel, wonder."
Girl/Female
French
Miracle.
Girl/Female
Hindu, Indian, Traditional
Miracle
Girl/Female
French American
Miracle.
Girl/Female
French
Miracle.
Girl/Female
Spanish American Latin
Miracle.
Girl/Female
Basque
Miracle.
Girl/Female
Hindu, Indian, Kannada, Malayalam, Marathi, Sindhi, Telugu
Miracle
Girl/Female
Spanish
Miracle.
Girl/Female
Spanish
Miracle.
Girl/Female
Spanish
Miracle.
Girl/Female
Indian
Miracle
SPIRACLE VERTEBRATES
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SPIRACLE VERTEBRATES
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SPIRACLE VERTEBRATES
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