Henry Gray Quotes

The liver signifieth the element of water, and it is also the water; for from the liver cometh the blood in the whole body into all the members. The liver is the mother of the blood.

Nitric oxide is a key biological messenger within the body. When released by the cells lining your arteries, it makes the walls of the arteries relax, allowing more blood to flow.

If we now plainly perceive that the passage of the blood from the arteries into the veins of the tadpole is not performed in any other than those vessels, which are so minute as only to admit the passage of a single globule at a time, we may conclude that the same is performed in like manner in our own bodies and in those of other animals.

The arteries are found in nearly every part of the animal body, with the exception of the hairs, nails, and epidermis; and the larger trunks usually occupy the most protected situations, running, in the limbs, along the flexor side, where they are less exposed to injury.

My blood is a miracle that, from my veins, crosses the air in my heart into yours.

I've always believed human blood is red because it really needs to draw attention to itself.

In many organisms, including man, the mechanical respiration and the circulation of the blood are 'regulated' so as to correspond to the demand of the moment.

The goal of physiological research is functional nature.

In the numerous observations made in my laboratory upon this object, we have only once seen a combination of vessels in which there might be a direct communication between a small artery and a vein, though the two observers could not come to a final conclusion on the point.

The circulatory system of man and the vertebrate animals can be considered as made up of a small number of organs or subordinate systems, which are easy to recognize anatomically, and the functions of which are on the whole quite distinct.

The body is an amazing system.

I find it quite fascinating to see how the body works.

Beyond my body my veins are invisible.

I felt the tributaries of his veins, wished to enter into his bloodstream, travel there, dissolved and bodiless, to take refuge in the thick walled chambers of his heart.

With each beat, the heart pumps nearly three ounces of blood into the arteries--seventy-five to ninety gallons an hour when the body is at rest.

There’s blood beneath every layer of skin.

Perfect health depends upon perfect circulation.

In the giraffe with a total height of 5 m., the heart is at a height of about 2.5 m., and it would be extremely interesting to know just how the giraffe avoids the development of filtration oedema in its long legs.

We finally understand in general terms how a cell is organized, how its specialized organs function in a well integrated manner to insure its survival and replication.

There are very few things in the body that nitric oxide doesn't regulate.

The best blood will at some time get into a fool or a mosquito.

The heart in man signifieth the heat or the element of fire, and it is also the heat; for the heat in the whole body hath its original in the heart.

I found it possible to observe at least the superficial capillaries of muscles both in the frog and in mammals through a binocular microscope, using strong reflected light as a source of illumination. Resting muscles observed in this way are usually quite pale, and the microscope reveals only a few capillaries at fairly regular intervals.

Without enough nitric oxide, your arteries can stiffen, raising blood pressure and your risk of heart attack.

Simply switching to a healthy, plant-based diet can lessen stroke risk by reducing cholesterol and blood pressure, flooding your body with antioxidants and improving blood flow.