0
Blood that leaves the heart is bright red it travels through arteries and capillaries when it reaches the veins on its way back to the heart it is dark bluish-red explain why this change occurs?
SparkleQueen
because the oxygen leaves the blood
Wiki User
∙ 14y ago
Add your answer:
Earn +20 pts
Where is blood located before it reaches the capillaries?
Arteries or arterioles
Blood leaves the heart is bright red. It travels through arteries and capillaries. When it reaches the veins on its way back to the heart it is dark bluish-red. Explain why this change occurs?
because the oxygen leaves the blood
What would happen if your arteries were missing?
Your heart pumps out blood in spurts. The muscles in your arteries smooth out your blood flow so that by the time your blood reaches your capillaries, your blood flows smooth and at low pressure. If they did not do their job, you would have internal bleeding.
Do arteriols pulsate?
The arteries (and arterioles) still carry the pulsing from the heart. By the time the blood flow reaches the capillaries and the veins, it is lost. This helps to keep the blood flowing in the right direction.
How oxygen arrives at the heart and then reaches the cells in your body?
When oxygen is inhaled into the lungs, it fills the alveoli and is then absorbed into the surrounding capillaries. It then travels from the capillaries to small venules then onto the pulmonary vein. It then exits the heart through the aortic arch which splits into many different arteries. These arteries split into smaller arterioles then further into capillaries. Oxygen is released from the red blood cells and passes through the thin capillary walls and is absorbed into cells.
How fast does blood travel?
Blood travels at three feet per second when it leaves the heart, but it slows down as it reaches smaller arteries and capillaries. Blood takes one minute to travel through the body.
Does blood flow more rapidly in the capillaries or in arteries?
Remember arteries come from the heart, and veins go from the organs back to the heart. Therefore, as the heart is the main pump, the arteries have the greatest pressure, so "the blood flow is more rapid in arteries."
How are oxygen and carbon dioxide transpoted in to the blood?
Trough Arteries & Veins. Oxygen rich blood leaves the heart in your arteries. When the oxygenated blood reaches its destination it is exchanged in vessels, called capillaries, for other gas, nutrients, and waste which is then transported back to the heart/lungs to be oxygenated once again.
Where would blood go when it leaves through?
When the heart leaves the left ventricle through the aorta, it moves into progressively smaller arteries and arterioles of the systemic circulation. Eventually the blood reaches the capillaries, where it allows the diffusion of nutrients and oxygen to the body tissues.
What happens when blood reaches tissue that doesnt have enough oxygen?
Once oxygenated blood reaches the capillaries, the velocity of the blood is very slow - which favours the exchange of oxygen. Oxygen therefore diffuses across the walls of the capillaries into the tissues that need it.
What does hemoglobin bind oxygen with when it reaches the arteries?
Oxygen is bound to the haemoglobin in the blood in the lung tissues, then this oxygenated blood is returned to the heart for distribution via the arteries.
How does the blood reaches to all parts of the body?
It reaches all parts of the body because it is transported there by the 'Cardio vascular system' , a network of pipes (the arteries and veins) and a pump (the heart).
