peritubular capillaries
The pterygopalatine ganglion receives its blood supply from branches of the maxillary artery, such as the sphenopalatine artery.
Vitamin C does not directly supply structure to bones. While it is essential for collagen synthesis, which is an important component of bones, it is not directly involved in bone mineralization like calcium and phosphorus.
Hummingbirds primarily pollinate tubular-shaped flowers with bright colors such as red, orange, or pink, as these signal a nectar reward. Some common plants that hummingbirds pollinate include trumpet vine, bee balm, cardinal flower, and fuchsia. These flowers have adapted to attract hummingbirds with their shape and color.
ALL of the the organs in the human body need an oxygen supply. This even includes the organs responsible for delivering oxygen to the rest of the body: the heart and lungs. Every organ requires oxygen. All that can be said in this case is that some organs use/need more oxygen than others. For instance, the brain needs/uses more oxygen than the spleen.
The middle meningeal artery supplies most of the blood for the dura mater, though the meningeal branches of the posterior and anterior ethmoidal artery also contribute.
Peritubular Capillary Beds
You have portal system of blood circulation in case of kidney tubules. In portal system, you have afferent arterioles, divided to form primary capillaries and capillaries reunite to form efferent arterioles. The efferent arterioles again divide to form the secondary capillaries. So you have secondary capillaries, there in urinary system, to receive the substances, directly from tubular cells.
The myocardium receives blood from the coronary arteries.
The lateral side of the hand receives blood supply from the radial artery.
The cornea, the clear part of the eye, does not contain blood vessels and it receives oxygen supply directly from the air.
Earth receives a constant supply of sunlight and cosmic radiation from outer space. Additionally, Earth also receives a continuous influx of meteoroids and dust particles from the solar system.
The cornea contains no blood vessels because it is retaining transparency is the most important thing. Since there is no blood supply, the cornea receives oxygen directly from the air.
no, pericardial fluid is only made to protect the heart from friction. The heart receives its oxygen and nutrient supply from the coronary arteries which branch directly off the aorta.
Hygiene Supply Direct seems to be a good source to buy a tubular heater. Another resource would be Dimplex, which is a company in the United Kingdom. These two companies seem to have good reviews on their products.
ATP and NADPH
yes
submucosa