Sistemas de órganos internos de los peces
Hola Amigos! En este tema trataremos básicamente los órganos internos de los peces y sus circuitos, se complementa con un estudio científico, acá les dejo el enlace:INTRODUCCIÓN A LA BIOLOGÍA Y DE LOS PECES
Considero que es importante conocer los sistemas de órganos internos de los peces, tener una noción de sus funciones y cómo se interrelacionan, y como afectan a los peces.
Casualmente me trajeron peces de rio que fueron pescados para comer y como tenia que limpiarlos para el consumo, aproveche para filmar sus órganos.
Al final del tema les dejo los videos de las vísceras de peces así los analizamos a ver si podemos distinguir los órganos principales. Lean detenidamente ente la informacion y luego miren los videos, alli verán los órganos y podrán reconocerlos y creo con esto subimos un peldaño más en el conocimiento acuarofilo.
Aunque parezca innecesario saberlo, es bueno para conocer como funcionan y que cuando se habla de los órganos entendamos de que exactamente se habla.
Comenzaremos con el digestivo.
Sistema digestivo de los peces:
Comienza en la boca donde trituran la comida ( ayudado por glándulas mucosas que segregan un líquido que ayuda a la digestión, en otros animales encontramos glándulas salivales) de allí va a la faringe, la cual tiene agujeros conectados a las branquias.
De alli pasa al esófago, el cual es un órgano elástico que tiene células secretoras de una sustancia mucilaginosa que favorece el paso del bolo alimenticio hacia el estómago ( algunos grupos de peces no tienen el estómago y la función de este la cumple una parte del intestino llamada intentisco. Caso de los Cipriniformes).
Muchas veces los diferentes órganos que componen el sistema digestivo no se diferencia con claridad en ciertas especies, pero todas tienen hígado y páncreas.
Ya en el estómago, el bolo alimenticio pasa a ser triturado, generalmente por divertículos que secretan enzimas digestivas y comienzan la absorción de los nutrientes.
Allí también el hígado y páncreas segregan más enzimas que ayudan en la digestión.
De alli vas a los intestinos (estos en peces herbívoros son más largos a fines de asimilar los nutrientes)
Para luego salir los desechos por el orificio anal.
Respiratorio:
El aparato respiratorio de los peces de inicia en las branquias (cubiertas por los operculos) por donde pasa el agua con aire.
Además tienen las funciones como filtrar impurezas del agua, plancton que irá a su estómago e interactúan como riñones filtrando la sangre purificandola con el oxígeno.
Al pasar el a aire por las branquias, estas absorben el oxigeno disuelto disolviendolo en la sangre, mientras el dióxido de carbono ( CO2) sale de ésta y se disuelve en el agua.
- Tambien encontramos la vejiga natatoria, esta es un precursor de pulmón y su función es la de almacenar aire, oxígeno (demás exterior) y nitrógeno extraídos de la sangre.
Con este órgano y sus gases internos retenidos maneja la flotación y las profundidades cargando o reduciendo lo de su contenido, que al estar dentro del pez le ayuda a manejar la profundidad.
A este órgano lo inflan en ciertas especies estrayendo aire de la sangre y en otros absorbiendo aire del exterior por un conducto llamado pneumonistico que une la vejiga y el sistema digestivo.
Por ello los peces que sufren obstrucción digestiva ( por alimento sin remojar generalmente) quedan flotando o en el fondo, ya que al estar tapado este conducto inutiliza la vejiga natatoria. O por estar presionada la vejiga.
- Tambien en ciertos peces (laberíntidos) encontramos un órgano llamado Laberinto, este es un pulmón primitivo que les sirve para absorver oxígeno de la superficie, aunque no el suficiente porque también o hacen por las branquias.
Esto le da una ventaja en relación a otros peces ya que no necesitan demasiado oxígeno disuelto en el agua, pero si igualmente necesitan agua oxigenada pues el laberinto no le da oxigenacion suficiente.
- Por último último hay algunas pocas especies de peces pulmonares que pueden respirar también el aire atmosférico por medio de un pulmón bien desarrollado.
Sistema circulatorio:
Está formado por un corazón con dos cámaras (aurícula y ventrículo) que impulsa la sangre hacia las branquias de ellas hacia la cabeza, y de allí al resto del cuerpo a través de una gran arteria situada debajo de la espina dorsal.
. para mayor información acá les copio información más específica y su fuente abajo.
En los peces, la sangre vuelve al corazón a lo largo de una vena importante en el hígado y el hígado del resto del cuerpo a lo largo de grandes venas cardinales.
El corazón tiene cuatro cámaras. Uno de la cavidad, el seno venoso, recibe la sangre, se pasa entonces a una aurícula muscular que se expande y se contrae llenado ventricular muscular.
La contracción del ventrículo impulsa la sangre en el cuarto de alta presión de las cavidades del corazón que el bulbo arterial. Válvulas de mariposa situadas entre las cámaras del corazón impedir el flujo de sangre hacia atrás. Las válvulas entre el ventrículo y el bulbo arterioso desarrollan a partir de otra parte del corazón llamada tracto de salida.
La sangre es luego del bulbo arterioso, aorta ventral fluye entonces, que luego se divide en una serie de arcos aórticos derecho e izquierdo. Los arcos forman las arterias branquiales aferentes se dividen en varios minutos los capilares de las laminillas branquiales, donde la sangre se oxigena. La sangre fluye con regularidad hasta las branquias, porque el bulbo arterial es elástica. El bulbo se expande cuando se contrae el ventrículo, ya que la agalla capilares oponerse al flujo de sangre, a continuación, cuando el ventrículo se relaja, el bulbo vuelve gradualmente a su volumen normal. Desde los capilares de enmalle, la sangre entra en las arterias branquiales eferentes, que se unen para formar la aorta dorsal. Esta gran nave lleva la sangre oxigenada de vuelta a lo largo de todo el cuerpo, la pulverización de los diversos órganos y tejidos.
Las embarcaciones más pequeñas, las arterias carótidas, llevan la sangre oxigenada a la cabeza. Desde los capilares en los tejidos del cuerpo y recoge la sangre en las venas, una parte de la sangre devuelve directamente al corazón y una parte pasa, antes de llegar al corazón, un sistema portal, que es un sistema de vasos situados entre dos tubos capilares, aquí son similares o nutrientes (sistema porta hepático) o eliminado los productos de desecho (renal sistema de portal).
Fuente: Acuicultura hoy.
Autor: Mariano Ariel Rodríguez. - Argentina_ Chaco
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Comentarios (391)
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muscle development and bone development.
2) Always monitor your blood pressure and heart fee while cycling
with Anavar; if either of this begin to rise significantly, scale back the dosage or cease taking the
steroid altogether.
Superior bodybuilders, unsurprisingly, are well-versed within the intricacies of using Anavar and how it impacts their physique.
They often incorporate it into more advanced
cycles and stacks involving various different compounds.
This stage calls for an even more thorough understanding of risk management, as improper utilization or combining incorrect substances can result in opposed consequences on the physique.
With Anavar and Turinabol, we usually see a average drop in testosterone, with ranges
typically recovering to natural peak levels a number of weeks post-cycle.
Neither compound will cause any weight reduction as a end result of simultaneous muscle growth.
What if you may get the efficiency enhancing, muscle building results of a steroid with out taking steroids?
The good factor is it’s only found in your blood for three weeks as
compared to different steroids that are detectable for as
much as 18 months. Anavar is also a preferred alternative amongst athletes because it will increase endurance stage (strength) without accumulating mass.
However, a bunch of people that stated it DOES work for them also identified one essential
factor that's their dose; their positive aspects have been more depended on the
dosage they consumed. And if you're looking for alternate options to Anavar with TRT – that's legal and safer – natural steroids are options I may really beat my chest and suggest
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One main use of anavar results in bodybuilding is during
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and desired at the fitness center. Anavar, also called Oxandrolone, is a well known anabolic steroid, sought after for its
capacity to assist in improved muscle definition and total body composition. Nonetheless,
such advantages are comparatively mild compared to powerful
bulking steroids (such as testosterone), in our experience.
This is because Anavar can suppress pure testosterone
production, and mixing it with exogenous testosterone might help mitigate this effect.
Growth of pimples and oily skin are the opposite androgenic unwanted effects to be
careful for. Once More, these will develop shortly and severely in some folks, while others won’t have pimples.
This can additionally be considered genetics, so if you’ve been acne-prone prior to now, there’s
a high chance you’ll develop this aspect effect when using Anavar.
Unlike baldness, which is usually permanent unless handled, acne must be lowered
and clear once you stop utilizing Anavar. Another Anavar stack for males is a pure chopping
cycle and contains one other cutting-specialist steroid
in Winstrol. Winstrol is considered one of the greatest slicing compounds out there, and
when combined with Anavar, it proves to be a potent duo for ultimate shredding.
However, in distinction to most other 17α-alkylated anabolic steroids, Anavar exhibits little to no hepatotoxicity, even at larger doses (Horowitz, Archives of Internal Medicine).
Still, it's sensible to monitor liver enzymes throughout usage
as a precaution. Anavar is extensively utilized in managing muscle-wasting ailments, corresponding to those
attributable to HIV/AIDS and certain cancers. These situations often end in cachexia, a
syndrome marked by extreme muscle atrophy and weight loss.
It is often used to deal with muscle-wasting conditions such
as AIDS-related wasting syndrome, Turner syndrome, and certain cancers.
Anavar can even assist with weight development after
vital trauma, surgical procedure, or persistent an infection. It has additionally been used to increase bone density
in folks with osteoporosis. It is important to note that Anavar usage for athletic functions is often combined with different substances, corresponding to
testosterone or other performance-enhancing medication. Nonetheless,
you will want to use warning and seek skilled steering
when combining substances to reduce the risk of antagonistic results.
In conclusion, legal alternate options to Anavar are gaining recognition and acceptance because of their
safer ingredient profiles and spectacular outcomes reported by customers.
It is crucial for people to rigorously research and choose high-quality products from
respected companies, as this will significantly influence their overall outcomes.
Most folks start with a lower dose and gradually increase it to see how their physique
reacts. Regardless of the reason for taking Anavar, observe the recommended
dosage and do not exceed it, as this can provoke serious well being
problems. Throughout this time, the individual takes Anavar every day in a specific
dosage – more on this directly beneath. Some people also use different dietary supplements or medicine during the cycle to enhance the results or to
assist with recovery afterward. However, cycling with out
proper medical steerage may be dangerous and lead to dangerous
unwanted effects.
It is a gentle steroid that's typically used by athletes and bodybuilders to increase muscle mass,
strength, and efficiency. Anavar can even assist you to lose fat, construct lean muscle
mass, and enhance your athletic performance. All of these advantages
make Anavar a great selection for athletes and bodybuilders alike.
They exist naturally in your physique and are involved in a wide range of biological
processes. Peptides are also utilized in bodybuilding as a
way to improve muscle mass and power. There are many several sorts of peptides obtainable, together with progress hormone secretagogues (GHSs),
that are used to stimulate the production of human growth hormone (HGH).
In this disease, the partitions of the heart's major pumping chamber increase and thicken. As the heart muscle
gets large, it becomes less elastic and may ultimately stop
pumping as forcefully as it should. Coronary Heart failure is a big explanation for dying and incapacity in older folks.
Hepatic dysfunctions brought on by Anavar use can include will increase in liver perform enzymes, Peliosis hepatis,
persistent infection, and worries about hepatocellular most
cancers. Uncover the battle between Anavar and EPI (Epistane) within the fitness world.
For this reason, except you are a bodybuilder keen to trade in your future health
for accelerated, temporary positive aspects now, Anavar should
never be in your radar. Since Anavar is taken into account as a mild oral steroid and has quite so much of uses.
It’s an thought for somebody who’s by no
means taken steroids earlier than it could serve as a great "entry" drug for a newbie because it doesn’t come with a lot of harsh unwanted effects.
Even youngsters can use it as the therapeutic dosage, as its gentle; nevertheless, for bodybuilding purposes, the standard dosing could be futile.
As with any oral drug, a dosing that's between mg a
day is critical, which could not be efficient
for bodybuilders. Many critics argue that there are some
other superior chopping steroids available available in the
market. We disagree with the notion for we expect Anavar is
a superior fat burning compound.
- 16. | 16/04/2025
- 17. | 16/04/2025
- 18. | 15/04/2025
- 19. | 15/04/2025
- 20. | 15/04/2025
testicular atrophy (shrinkage). Thus, at the finish of any cycle, always ensure to
run a proper post-cycle therapy that aids in the recovery of natural hormone
manufacturing. We have found hCG to be particularly effective in treating testicular atrophy.
However, our sufferers sometimes use Sustanon 250 in bulking cycles, where maximum muscle acquire
is the aim.
This is due to Anavar being 5α-reduced; thus, it does not aromatize, which means estrogen ranges stay steady.
This is beneficial for bodybuilders seeking a lean and
outlined physique. It can be interesting to athletes who are
not looking for further water weight when performing.
Subsequently, illicit use of this steroid may cause troublesome and doubtlessly deadly unwanted effects.
Sustanon 250 and different testosterone esters will elevate LDL cholesterol levels, inflicting some cardiotoxicity.
Anti-estrogen merchandise (such as Nolvadex and Clomid) actively compete with
estrogen at a receptor stage, decreasing the female hormone’s effects.
It is simply potential to gauge such sensitivity once a cycle is embarked upon. Thus, weight acquire
may not be the best method for tracking results on testosterone, with before and after footage being more telling.
First and foremost, it is necessary to bear in mind that this Anavar
cycle can be extremely difficult each mentally and physically.
You will need to be aggressive together with your workouts
and ensure you’re consuming sufficient protein and calories so
that you don’t lose any muscle or achieve any pointless weight.
If you’re not ready for this type of routine, you may find yourself shedding motivation along
the way. Additionally, be positive to have a good understanding
of how much muscle mass you can count on to gain, otherwise you could end up dropping an excessive amount of muscle
and never getting the outcomes that you simply re in search
of. It could be extremely really helpful for bodybuilders who're able to make a everlasting change of
their physique, however it's not for the faint of coronary
heart. If you’re going to do Anavar cycle, you have to be ready and have the psychological toughness to see it by way of.
Dianabol is a fast-acting oral steroid with a 3-6 hour half-life,
recognized for its muscle-building potential throughout bulking cycles.
Anavar is a popular anabolic steroid utilized by both women and men for its mild
nature and effectiveness in building lean muscle mass and selling fats loss.
The dosage of Anavar varies between women and men, as nicely as between newbies and experienced bodybuilders.
Anavar is also recognized as Oxandrolone which is the
most well-liked steroid within the bodybuilding and fitness world.
Many women and men can use the Anavar cycle to enhance their physique, power, and general efficiency.
Anavar is a light anabolic steroid that's utilized by powerlifters and bodybuilders.
Anavar isn't useful for large muscle mass progress, nevertheless it offers simpler ends in the cutting
part and is ready to add lean muscle and spectacular energy.
An Anavar-only cycle is often practiced by novices and intermediates throughout a
cutting section. An Anavar-only cycle can enhance fat burning while adding moderate quantities
of muscle mass. As I’ve discussed Anavar and Winstrol cycles, it’s essential to say the significance of Post Cycle Therapy (PCT).
PCT helps your physique recover from the stress of biking steroids and preserve the gains acquired through the cycle.
When we evaluate Anavar to different steroids, it’s considered mild,
however in actuality, it could possibly nonetheless
have substantial effects (both positive and negative) at higher doses
(more on that below). We discover that if junk foods are consumed throughout a
cycle, sodium ranges will rise, inflicting water retention. This
can inhibit Anavar’s diuretic results, inflicting
the muscle tissue to appear increasingly clean and scale back muscle definition, striations, and
vascularity. Alcohol has a negative effect on cortisol ranges (35); thus,
fat-burning could turn out to be inhibited. Furthermore, cortisol is a catabolic hormone,
that means heavy alcohol consumption may reduce muscle mass.
For most outcomes, customers ought to decrease alcohol
consumption throughout a cycle. Nonetheless, low
quantities of alcohol are unlikely to affect
a user’s results significantly.
This can help to reduce back the chance of these side
effects and ensure that the features made during the cycle are maintained.
It’s necessary to notice that the particular
PCT protocol for Anavar use might differ depending in your particular person wants and goals.
Factors corresponding to your age, dosage, cycle length,
and overall health ought to be taken into consideration when designing a PCT plan. Consulting with a
educated healthcare provider or skilled bodybuilding coach can help ensure that
you’re using Anavar safely and successfully. If you’re new
to Anavar, it’s necessary to begin with a low dose and gradually improve it
over time. The recommended dose for males is between 20-80mg per day, whereas the
recommended dose for women is between 10-20mg per day.
If you’re seeking to get ripped quick, you may be
considering using Anavar.
Nonetheless, it could possibly even have extra side effects such as joint pain and liver toxicity.
Like Anavar, it helps to promote fat loss and enhance muscle definition. Winstrol is another in style chopping agent that helps to increase strength and endurance while
promoting fat loss. Ernst Peibst is an expert in anabolic steroids and PEDs with over three,000 hours
of research. He's been educating people for 7 years by way of his articles, written after finding out science papers, skilled books and consulting top medical doctors
within the area. Nonetheless, you'll experience such androgenic unwanted side effects as zits hair loss and probably an antagonistic effect on cholesterol levels.
Due to the harshness of this cycle, it doesn't
final past 6 weeks to maintain optimum long-term well
being. Gynecomastia is a concern with the addition of Anadrol; thus,
a SERM corresponding to Nolvadex is beneficial to keep the buildup of breast tissue at bay.
We have found aromatase inhibitors to be ineffective at stopping gynecomastia from Anadrol, because it
doesn't convert testosterone to estrogen. We have seen bodybuilders successfully cycle the 2 collectively simply before a competition, trying lean, dry,
and full. The trick is to eat low amounts of sodium, which prevents the
bloating impact that Anadrol could cause.
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Fecha última actualización: 21/04/2020
efforts and I am waiting for your next post thanks once again.