Circulatory System

The circulatory pathway that goes through one's lungs.

The contraction of the heart chambers in a regular cycle is called systole

YES!

60-70%

Ideally, the pH of the blood should be maintained at 7.4. If the pH drops below 6.8 or rises above 7.8, death may occur. Fortunately, we have buffers in the blood which maintain the pH balance for us , so that we don't...well,DIE.

There are several industrial gases that are essentially odorless but can cause loss of consciousness by interfering with oxygen uptake. These include carbon monoxide, ethylene, and high concentrations of carbon dioxide, hydrogen, nitrogen, helium, or argon. Other gases such as butane and propane will usually have an odorant compound added, but would have similar effects.

Some people have poor circulation and veins or capillaries break.

no

right atrium is the chamber of heart in which the veins empty themselves of deoxygenated blood from all parts of body. right atrium always carry the deoxygenated blood and then pumps it into right ventricle....

Inhibin inhibits FSH production, which leads to a reduction in spermotagenesis

Carotid endarterectomy is the surgical exposure of the carotid artery and the removal of the plaque. This re-establishes the uninterrupted flow of blood to the brain.

The pace maker uses electrical impulses to regulate heart rate. It is used when the bodies own impulses from the brain are not able to do the job anymore.

The myocardium (middle layer)

Normal skin color is vibrant and looks healthy. The appearance of the veins in the forearm before testing should be blue and smooth-looking.

pretty much the same as any animal with the heart veins arteries and capillaries

the heart, the lungs, and the blood vessels ;D

What I have heard is that you blow through a straw into water for as long as you can. If you do it enough then you will be able to achieve circulatory breathing.

Cholesterol is a cellulite substance found in most forms of animal life. It can be divided into two groups: HDL (healthy) & LDL (unhealthy). Low density cholesterol causes formation of plaque, which clogs the vascular system & leads to stroke &/or heart attack. High density cholesterol is produced by the body in humans & aids the vascular system against LDL damage.

From the blood it is pumping, the blood pervades are organs and carries food /energy for those organs to function.

All organ systems work together in order for a body to function. The circulatory system and the excretory system work together to rid the body of wastes. As blood travels to the kidneys, unneeded materials are filtered out through the rest of the excretory system and the filtrated blood is carried away via the Renal vein. The circulatory system works with the respiratory system by providing red blood cells with oxygen. The nervous system sends messages to the heart that cause it to pump.

Hemoglobin: the oxygen-carrying pigment of red blood cells that gives them their red color and serves to convey oxygen to the tissues

The Blood stream

Your circulatory system is important because that is what carries blood to and from all areas of your body. Without your circulatory system, you wouldn't make it far.

because their body have a direct contact with the environment

The only vein that normally carries oxygen rich blood is the pulmonary vein which carries freshly oxygenated blood from the lungs back to the heart for distribution to the body. Ordinary veins can have oxygen poor blood but don't carry oxygen rich blood.