according to dr sonam its because the blood comes directly from the heart
They have slightly fewer nerves so it will hurt less.
Capillary blood collection is typically performed using the middle or ring finger of the non-dominant hand. The fingertip is preferred because it has a good blood supply and allows for easier access. The skin is usually punctured with a lancet to obtain a small drop of blood for testing. It's important to ensure the site is clean and properly prepared before the procedure.
This may be pertaining to fellatio; or in any circumstances, sucking the middle finger of blood because of a cut. ^_^
Pricking the finger in the middle of the tip can be painful and increase the chance of hitting a nerve, causing discomfort or numbness. It is also important to avoid the center to prevent damage to the sensitive tissues and ensure an adequate blood flow for an accurate blood sample.
Positioning the lancet across the finger rather than parallel allows for a more effective blood sample collection. This technique minimizes discomfort by avoiding nerve endings and capillaries that are more densely located along the length of the finger. Additionally, it can facilitate better blood flow and yield a larger drop of blood, making the testing process more efficient. Overall, this positioning enhances both the comfort and accuracy of blood sampling.
Right hand: Thumb up, pointer finger makes a "B" with the thunb. middle finger stays straight up to make the "L". ring finger curls around onto the middle finger to make an "O". Left hand: thumb and pointer finger makes a "D" by putting pointer finger halfway down thumb. Middle finger curls around onto the curled pointer finger to make the "O". Put the two "O" 's together. =)
Dermal puncture refers to a technique used to obtain capillary blood samples by pricking the skin using a lancet or needle. It is commonly done on the finger, heel, or other suitable site for blood collection in medical settings such as hospitals, clinics, or laboratories.
If you look closely, the blood symbol spells out "Blood" with the fingers. The right thumb and forefinger make the "B". The right middle finger is the "L". The Right ring finger is the "O". The left middle finger makes the other "O", while the thumb and forefinger of the left hand creates the "D". Note: This example is from the perspective of who is using the sign. When you look at the blood symbol you can see "blood".
to make the blood circulation move clearly
Assuming you're talking about when a medical person takes a pin-prick sample of blood... They usually take it from the middle finger - from the side of the end joint.
If a girl cuts her finger, the blood itself will chemically stop her finger from bleeding. The blood will form a clot at the cut and stop other blood from flowing out if no artery was severed.
Lavender