#respiration

[dragonleger2]

Son corps est allongé devant moi, nu. Je suis nue aussi. En chien de fusil, la hanche et l’épaule offrent leurs surfaces rondes pour accueillir les paumes de mes mains, premier contact. Début de voyage.

Prendre contact

D’abord mes mains sèches contournent le corps, glissent calmement, mais avec précision sur chacun des contours de cette personne. Le dos, le ventre, les fesses, les membres, le cou, le visage, les cheveux. Première cartographie des espaces qui s’y prêtent, de la confiance qui se donne. Bonjour de mes cellules à chacune de ses cellules superficielles, salutations des surfaces, faire connaissance par la caresse.

Puis je fais glisser l’huile sur mes mains et une danse au rythme sensiblement plus rapide me fait parcourir les mêmes espaces de peau. Je couvre ce corps d’une pellicule de brillance. L’adipeux lubrifie la rencontre, permet autant le dialogue, qu’il n’enveloppe de pudeur. Son épaisseur est autant un voile qu’une loupe, autant un vêtement qu’un médium.

Honorer le corps, sentir l’énergie

Ma main ralentie. L’attention est à l’enveloppement plus minutieux encore. Mes gestes épousent avec plus de précision des volumes, les creux, les protubérances. Platitudes et exubérances, le corps complexe se laisse dessiner dans toutes ses nuances.

Chacune de mes progressions est une honoration. Je salue par mes gestes la beauté de la nature. Je fais parler l’amour dans le dialogue du tonus, dans l’accordage des chairs, dans l’ajustement des tissus. Contourner une cuisse, puis une jambe, une cheville m’amène à coucher mon corps sur la hanche.

Porter mon attention jusqu’au bout des orteils du pied conduit mon ventre à glisser sur tout le membre, et c’est tout mon corps qui vient épouser ce membre inférieur. Je marque une pause. Je respire. Le corps respire aussi. Je reprends mon rythme lent, la balade est une musique, je remonte le pied, le mollet, enveloppe l’avant et l’arrière de la cuisse.

Une main prend présence sur le ventre, une autre sur le dos, j’embrasse ce torse qui inspire et expire. Ma main se glisse entre deux seins rendus charnus par la posture. Et je pose le poids de mon buste sur la cage thoracique. Le souffle se fait profond. Je marque un silence du mouvement. Je confie mon poids. Ma chaleur est accueillie. Je sens que cela remue.

Une histoire des sens qui se parlent là. Je pose ma tête sur l’épaule. Ma jambe vient glisser sur le bas du corps et c’est tout mon corps qui huileusement câline le sien. 

Jusqu’à ce qu’une inspiration redonne l’impulse à la course lente de toutes mes cellules qui glissent sur d’autres cellules. Mes mains à nouveau parcourent ce corps, mes avant-bras, mon ventre, ma poitrine, mes cuisses, mes jambes. Ballet de juxtapositions, des chaires qui se contournent, se posent, se lovent.

La personne se tournera de l’autre côté, consentira à s’allonger sur le ventre, sur le dos.

À chaque posture, d’autres rencontres possibles. De la main sur un muscle, d’un avant-bras sur une côte, d’un tibia sur une aine, d’un sein sur une aisselle, d’un doigt sur un lobe d’oreille. Chaque espace du corps est esquissable et dessiné, est honorable et honoré, est aimable et respecté. La paupière, le pli sous la fesse, le creux de la clavicule, l’index, l’hallux, le sacrum, le front, le sexe… Sans hiérarchie, ni a priori.

Mais à l’écoute de ce qui réagit, de ce qui circule, de ce qui passe et ce qui se passe. Parfois le geste ralenti, dans une infinie lenteur qui suspend le temps et parfois retient le souffle. Silence. Hommage. Réconciliation. De temps en temps, un ongle ou une pulpe de doigt vient réveiller d’un frémissement une chaire de soul. Jeux de tempo. Surprises douces et tendresses facétieuses.

Un râle de contentement quand tout mon poids se confie de toute ma longueur sur toute la sienne. Un gémissement quand l’intérieur de ma cuisse termine son voyage d’une hanche à une oreille et que mon sein vient effleurer un sourcil. Je suis anguille, serpent. Je suis abeille et papillon. Je suis jument et tigre. Nos corps sont chaires animales habitées d’âmes humaines. Dans un espace et un temps d’illusions, incarnation.

Dire au revoir, célébrer la divinité

La danse est si surréaliste et si poétique, l’instant est si profondément humain et à la fois sacré que le voyage est une éternité et s’écoule dans l’instant présent.

Je termine, une main posée sur le sexe, une autre sur le cœur. Et prends le temps de dire au-revoir, comme de dire merci. Merci pour la rencontre, merci pour le voyage. Merci pour la confiance et la sincérité. Merci pour la puissance et la vulnérabilité. Merci pour la matière et la divinité. Merci pour la beauté, faite humanité.

purrrrr😍

[aring-king-king]

[frownyalfred]

slightly toxic enemies to lovers superbat where Clark grows tired of Bruce denying the tension between them and starts listing off all the physiological reactions he can sense in Bruce’s body out loud

[nemfrog]

"The air we breathe enters the lungs." The Body and Health: Grade Six. 1936.

Internet Archive

[grandboute]

Breathe

[ilikevintagebooks]

Experiments with Plants

-The Universe 1873

[kido-sante-mentale]

Comment calmer les crises d’angoisses :

Dans ta tête, il y a ce qu’on appelle le nerf sympathique et le nerf parasympathique.

Quand tu te sens submergé.e par pleins de choses, le nerf sympathique s’active : le rythme de ton cœur s’accélère, tu transpire, t’arrive plus trop à respirer…

Le nerf parasympathique, lui, fait en sorte que tes muscles se détendent et que tu ai une bonne respiration.

Ses deux nerfs ne peuvent pas s’activer en même donc quand tu te sens mal il faut essayer d’activer le nerf parasympathique.

Pour ça il faut que tu calme ta respiration, essaie de passer le même temps à inspirer qu’à expirer, et puis tu peux aussi t’entourer d’une personne que t’apprécie. Cette personne peut te rassurer.

Le but, c’est vraiment d’avoir la respiration la plus lente, même si c’est dur.

Sur ce, je te souhaite une bonne journée 😘❤️✨

[cerealdigitalgallery]

Portrait of Alice Wong by Georgia Webber

Contemporary Calgary, Mohkinstis, Canada

As part of the exhibition “Resistance & Respiration”

January 2024

[imperialguinness]

Black Star - Respiration ft. Common

[callistineproject]

The Stomata in Plants

The stomata plays a key role in the respiration of plants. The stomata are pores found on the epidermis of leaves. However stomata can also be found on the stem on some plants. Stomata are multiple stomas. The image below shows stomata under a microscope, and the one below that is an image of stoma found on the web.

The stoma is made up of guard cells (the sausage like shape in the image above) and is surrounded by the epidermal cell and the subsidiary cell.

These guard cells open when the stomata have taken in a lot of water (this is called the turgid state). They close when the opposite happens (this is called the flacid state).

Stomata open to for the uptake of carbon dioxide and release of oxygen. They close for the uptake of oxygen and release of carbon dioxide.

A problem that plants face is the loss of water. To prevent this as much as possible, the stomata open for a short amount of time before closing.

[tutoroot]

What is the Difference Between Breathing and Respiration? 

Breathing, also known as pulmonary ventilation, is how air is moved into and out of the lungs. This physical act involves two main phases: inhalation (or inspiration) and exhalation (or expiration). 

Inhalation: When you inhale, the diaphragm tightens and shifts downward, increasing the chest cavity’s size. At the same time, the intercostal muscles between the ribs contract, causing the rib cage to expand. This expansion lowers the pressure within the lungs compared to the external atmosphere, allowing air to flow into the lungs. 

Exhalation: Exhalation involves pushing air out of the lungs. This happens when the diaphragm and intercostal muscles relax, decreasing the volume of the chest cavity. The pressure inside the lungs then becomes higher than the outside atmosphere, driving air out through the respiratory passages. 

Breathing is an essential process for delivering oxygen to the body and removing carbon dioxide, a waste product of cellular metabolism. Without breathing, cells would not receive the oxygen necessary for survival, and carbon dioxide would accumulate to toxic levels. 

What is Respiration?

Respiration, on the other hand, is a biochemical process within the cells. It involves the conversion of glucose and oxygen into energy, carbon dioxide, and water. This process is vital for producing the energy required for various cellular activities. 

Cellular Respiration

Cellular respiration can be broken down into three main stages: 

Glycolysis: This occurs in the cytoplasm of the cell, where glucose is split into two molecules of pyruvate, generating a small amount of energy (ATP) and producing NADH. 

Krebs Cycle (Citric Acid Cycle): This takes place in the mitochondria. The pyruvate is further broken down, producing more NADH and FADH2, and releasing carbon dioxide as a byproduct. 

Electron Transport Chain (ETC): Also in the mitochondria, the NADH and FADH2 generated in the previous steps donate electrons to the ETC, creating a flow of protons that drives the production of a large amount of ATP. Oxygen acts as the final electron acceptor and combines with protons to form water. 

Aerobic vs Anaerobic Respiration

Respiration can be either aerobic or anaerobic. Aerobic respiration requires oxygen and produces a significant amount of ATP. Anaerobic respiration, which occurs when oxygen is scarce, produces less ATP and results in byproducts like lactic acid or ethanol. 

Difference between Breathing and Respiration

While both breathing and respiration are crucial for sustaining life, they serve different functions and occur in different locations within the body. Here’s a detailed comparison: 

Breathing

Definition: Breathing, or ventilation, is the physical process of moving air in and out of the lungs.

Involves: The respiratory muscles, particularly the diaphragm and the intercostal muscles, which help in the expansion and contraction of the chest cavity.

Purpose: To bring oxygen into the lungs and remove carbon dioxide from the body.

Phases:

Inhalation (Inspiration): The process of taking air into the lungs. The diaphragm contracts and moves downward, while the rib cage expands, creating a vacuum that pulls air into the lungs.

Exhalation (Expiration): The process of expelling air from the lungs. The diaphragm relaxes and moves upward, and the rib cage contracts, pushing air out of the lungs.

Control: Can be voluntary or involuntary. While we can control our breathing rate and depth consciously, it is primarily regulated involuntarily by the respiratory center in the brainstem in response to the body's needs.

Respiration

Definition: Respiration is a biochemical process that occurs in cells to produce energy.

Involves: Cellular organelles called mitochondria are often referred to as the cell's powerhouses.

Purpose: To convert glucose and oxygen into energy (ATP), carbon dioxide, and water.

Types:

Aerobic Respiration: Requires oxygen and produces a large amount of energy. The overall reaction can be summarized as: Glucose+Oxygen→Carbon Dioxide+Water+Energy (ATP)\text{Glucose} + \text{Oxygen} \rightarrow \text{Carbon Dioxide} + \text{Water} + \text{Energy (ATP)}Glucose+Oxygen→Carbon Dioxide+Water+Energy (ATP)

Anaerobic Respiration: Occurs without oxygen and produces less energy. This type of respiration results in byproducts such as lactic acid (in animals) or ethanol and carbon dioxide (in yeast and some plants).

Stages:

Glycolysis: Occurs in the cytoplasm, where glucose is broken down into pyruvate, producing a small amount of ATP.

Krebs Cycle (Citric Acid Cycle): Takes place in the mitochondria, where pyruvate is further broken down, producing electron carriers and a small amount of ATP.

Electron Transport Chain: Occurs in the inner mitochondrial membrane, where the electron carriers are used to produce a large amount of ATP.

Respiration vs Breathing – Overview

Breathing and respiration are interconnected processes essential for maintaining life. Breathing is the mechanical process that facilitates oxygen intake and carbon dioxide expulsion. Respiration is the cellular process that uses the oxygen delivered by breathing to produce energy, which powers all bodily functions. Together, they form a vital system ensuring that cells receive the oxygen they need and remove the carbon dioxide they produce. 

Understanding the distinction between breathing and respiration is fundamental in biology. Breathing is the external, mechanical process of moving air into and out of the lungs, while respiration is the internal, biochemical process of generating energy at the cellular level. Both processes are crucial for life, supporting each other to maintain the body’s overall function. 

Were you looking for clear and easy-to-understand explanations like the one provided? Check out the Tutoroot Blog section for simplified learning experiences. Enhance your understanding of biology and get your questions answered with TutorootBiology Online Tuition. Start your journey with Tutoroot’s online home tuition by scheduling a FREE DEMO session today. 

[macgyvermedical]

Apparently lime/calcium can capture CO2 from air and that is why some instructions for building private underground bunkers to wait out nuclear disasters in, include whitewashing the walls so they can maintain low CO2 levels when in use even with minimal contact with the environment. What does that mean for the relative oxygen level?

Whitewash (the type of paint) made from slaked lime (calcium hydroxide) cures by pulling co2 out of the air. By the time it’s dry, though, it’s essentially a thin layer of limestone (calcium carbonate). Calcium carbonate/limestone does not continue to pull co2 out of the air, so unless someone was spending most of their time whitewashing the inside of their bunker with more and more calcium hydroxide, I’m not sure this would be a viable method of keeping down the co2.

Assuming it did work, however, humans would still use up the oxygen in a confined space. Critical loss of oxygen just happens slower than toxic buildup of co2. For a true life support system you need to both absorb the co2 being created and add oxygen to the environment.

[cuicuit]

Trachea of a locust

The black structure forms an elaborated network of tiny pipes that shrink more and more, until they reach individual cells that they feed with air. Sometimes, there is an "air bag", which improves the locust's lighness and allows him to fly. There is no blood system : the air directly enters into the trachea and navigates to the cells.

[thesciencegirl]

THE RESPIRATION SYSTEM:

part 2: aerobic & anaerobic respiration

part 1 | part 2 | part 3 coming soon

what is aerobic respiration?

aerobic respiration is a chemical reaction that happens in your body.

it requires oxygen

produces a lot of energy.

when does it happen?

happens when there is plenty of oxygen available (so when you're doing normal, everyday activities

just normally breathing

what is anaerobic respiration?

anaerobic respiration does not need/ require oxygen

produces lesser energy than aerobic respiration.

when does it happen?

happens when the body has no oxygen/ has run out (so during strenuous exercise like running or sports which make you tired)

[msboutofcontext]

[laruad]

Breathing guide, breathing with a 5-2-5-2 rate Inspiration 5 seconds - Hold 2 seconds - Expires 5 seconds - Hold 2 seconds For 6 minutes. The video is guided with animation and sounds to assist in the exercise. Let us guide you. Cardiac coherence is a breathing technique that can help reduce stress and promote relaxation. This involves breathing deeply and regularly following a specific rhythm. It is a simple but effective method to calm the mind and body.