the heart
pourpose
to pump blood through the body and supply oxogyn
are there any parts of the body that et oxygen other than from the heart and blood?
yes, Upper-layer skin cells and the cells in the front surface of the eyes get a significant amount of oxygen directly from the air rather than from the blood
arteries, veins and cappillaries
blood vessels
importance
important for the optimal functioning of our general and specific immune responses.
overlooked?
a vital but often overlooked component of the cardiovascular system, lymphatic vessels do not deliver oxygen and nutrients to tissues, but instead collect and return interstitial fluid and protein (lymph) to the bloodstream.
where
the pumping action supplies blood, oxygen, and nutrients to the tissue
does licorice cause high blood pressure
Yes. Consumption of licorice can lead to dangerously high blood pressure and dangerously low potassium levels
what carries blood away from the heart
arteries
lymph nodes?
monitor the lymph flowing into them and produce cells and antibodies which protect our body from infection and disease.
main vessels
superficial and deep: Superficial vessels – arise in the subcutaneous tissue, and tends to accompany venous flow
amount
14,000 liters of blood everyday
are veins blue
no, It is the blood in the veins that gives them color. Furthermore, the blood in hum
thick musular walls
arteries
lymph is?
is a clear-to-white fluid made of: White blood cells, especially lymphocytes, the cells that attack bacteria in the blood.
flow
Lymph fluid can only flow forward through lymphangions due to the closing of valves after fluid is pushed through by fluid accumulation, smooth muscle contraction, or skeletal muscle contraction.
beats in a life time
2,838,240,000 times in a life time
how much during pregnancy?
The amount of blood in a pregnant woman's body will have increased by 50% by the 20th week of pregnancy.
carries blood back to the heart
veins
The lymph is moved how
through the body in its own vessels making a one-way journey from the interstitial spaces to the subclavian veins at the base of the neck
importance
our body's 'sewerage system'. It maintains fluid levels in our body tissues by removing all fluids that leak out of our blood vessels
size
about the size of your fist
gold?
Our blood contains around 0.2 milligrams of gold
thin walls
capillaries
how is it formed
it originates from interstitial fluid that is formed where capillaries and body tissues exchange fluid and other substances
protection
helps defend the body against illness-causing germs, bacteria, viruses and fungi.