flexion
flexion
flexion
flexion of the knee.
Extension. Extension increases an angle, as in straightening a joint. During extension, the knee or elbow are straightened.
The inferior vena cava brings blood from the lower parts of the body to the heart. The blood is deoxygenated.
there is a panel with this lower than your track (z to turn around)
It is meningitis. Go to the doctor or hospital emeditly.
It is a large bend , or part of a series of bends, in the lower course of a large river.
water pump
mechanical movement is nothing but movement of mechanical branch from lower position to the lowest position...
The movement of gas through a small hole into an area of lower pressure is diffusion.
You have it backward I believe. When serotonin is lower, people have more risk to experience depression.