Sentences with phrase «many air sacs»

Salting will collapse these air sacs.

Lungs: Your babies» lungs are developing «branches» of the respiratory «tree» as well as cells that produce surfactant, a substance that helps air sacs inflate easily.

The air sacs of the lungs are starting to develop and the surfactant is being secreted to line the air sacs.

The air sacs of the lungs, called alveoli, will be developed by the end of this week and will begin to secrete a substance called surfactant that keeps the lung tissue from sticking together.

Surfactant is a naturally occurring chemical needed to inflate the tiny air sacs (called alveoli) in baby's lungs when he or she is ready to breathe.

In the last few weeks of the pregnancy, the lungs will grow alveoli, or those air sacs that allow the exchange of oxygen, but they are not a lot.

An artificial surfactant was put into his lungs to help keep the air sacs open.

We like the Mad Grit Air Sac Sofa for a lot of reasons.

There they could exacerbate asthma, bronchitis — an inflammation of the tubes that carry air to and from the lungs — and emphysema — a disease in which the lungs» many air sacs are destroyed, leaving patients short of breath.

The sound bounces off the air sac at the back and then comes out through the junk.»

Air sacs may also have enabled creatures to make long, repeated calls without hyperventilating.

In modern humans, who lack air sacs, that bone supports the tongue muscles, enabling a wide range of vocalizations.

«Air sacs make sounds louder and lower - pitched, just the way a musical instrument sounds lower and louder when it's bigger,» de Boer continues.

The easiest vowel sound to make when air sacs are present is «uh.»

Lucy could not speak the way we do, because she most likely had air sacs, balloon - shaped organs that attach to an extension of the hyoid bone, says Bart de Boer, an expert in the evolution of speech at Vrije University in Brussels.

Air forced down them produced different vowel sounds, and half of the models had an extra chamber to mimic an air sac.

One such change was the loss of the air sac — a balloon - like organ that helps primates to produce booming noises.

He found that those listening to tubes without air sacs could tolerate much more noise before the vowels became unintelligible.

«Lucy's baby», an Australopithecus afarensis girl who lived 3.3 million years ago, had a hyoid bulla; but by the time Homo heidelbergensis arrived on the scene 600,000 years ago, air sacs were a thing of the past.

«Early humans» need to produce complex sounds to communicate better made their vocal air sacs shrink»

All primates have an air sac except humans, in whom it has shrunk to a vestigial organ.

De Boer found that air sacs also interfered with the workings of the vocal cords, making consonants trickier.

The air sacs acted like bass drums, resonating at low frequencies, and causing vowel sounds to merge; Lucy's baby would have had a greatly reduced vocabulary.

The key, it turns out, is how the melon, the skull and air sacs in the head work together, forcing the sound wave in a single direction.

Both the prairie chicken and the sharp - tailed grouse, for example, inflate colorful air sacs on their necks, stamp their feet, spread their wings and tails, and make booming sounds that can attract coyotes and raptors as well as females.

Every spring, male sage - grouse, which stand two feet high, return to historic strutting grounds known as leks to perform elaborate courtship dances during which they inflate yellow air sacs on their chests to impress female onlookers.

Influenza pneumonia results when a flu infection spreads to alveolar air sacs deep within the lungs.

Once influenza spreads deep into the lungs, the body's own immune response can prove harmful, resulting in severe damage to the alveolar air sacs.

It is, however, known that the lung interstitium — the connective tissue between the air sacs in the lower part of the lung — is affected.

«Results also identified mechanisms regulating the numbers and phenotype of macrophages in the tiny air sacs of the lungs (called alveoli) in health and disease,» said Takuji Suzuki, MD, PhD, the study's first author and a scientist in the Division of Neonatology and Pulmonary Biology at Cincinnati Children's.

This it accomplishes with its mosaic of specialized cells that form millions of tiny, exceptionally thin - walled air sacs where gas exchange takes place.

«The heart is just a pump,» says William Federspiel of the University of Pittsburgh, whereas the lungs contain a complex network of branching air sacs permitting gases to diffuse in and out of the blood.

Whitesides designed the shape and thicknesses of the walls of the air sacs within the robot's limbs by using computer modelling to calculate the forces and pressures required.

For example, the dinosaurs had weight - bearing pillarlike legs, small heads, and bones peppered with air sacs.

In the second study in Science, researchers from Harvard University in Boston, Massachusetts, created a chip 1 to 2 centimeters long in which a 1 millimeter - wide channel, coated with human lung cells on the inside and overlaid with human blood capillaries on the outside, mimicked the air sacs, or alveoli, of the lungs.

His actuators are made from soft polymer materials called elastomers, and his first prototype, a six - fingered gripper, resembles a starfish: when air is pumped into it through a thin tube, air sacs within expand, causing its digits to contract in a gentle grasping motion.

Green means healthy, yellow means a reduced ability to push air out of the lung's small air sacs, and red means severely reduced ability.

Current testing requires a series of methods including a spirometry test, which measures the amount (volume) and the speed (flow) of air during breathing, followed by a body plethysmography test measuring static lung volumes and airways resistance and finally a diffusion test, which measures the amount of oxygen and other gases that cross the lungs» air sacs.

When inhaled, the nanoparticles enter deep into the lungs, potentially all the way into the air sacs that move oxygen into our bloodstream during the normal breathing process.

PH can result in fatal complications, due to improperly formed alveoli or air sacs that are not capable of generating air exchange.

Inhaled diacetyl, the chemical that gives microwave popcorn its sinful buttery flavor, is suspected to gradually inflame and scar the lungs» tiny air sacs, making it increasingly difficult for sufferers to exhale.

The investigators focused on alveoli, the small air sacs at the ends of lung airways.

The drug is a spray of nanoparticles, which are small enough to be absorbed through the lungs» air sacs and into the bloodstream.

This flesh rendering of the predator Aerosteon shows its lungs (red) and air sacs (other colors) as they might have been in life about 85 million years ago.

Punctuating their displays with swishing, hooting and popping sounds, males bob their heads, fan their tail feathers, raise their wings, and expand and contract distinctive yellow air sacs to compete for females» favor.

Tracheal branch repopulation precedes induction of the Drosophila dorsal air sac primordium.

FGF is an essential mitogen and chemoattractant for the air sacs of the Drosophila tracheal system.

Regulation of Drosophila matrix metalloprotease Mmp2 is essential for wing imaginal disc: trachea association and air sac tubulogenesis.

March 6, 2018 — Researchers identified a type of stem cell that produces new air sac cells in lung tissue.

Neutrophils can kill the bacteria, but they also cause harm by releasing inflammatory compounds that damage the lung's air sacs.