The thumb represents the brain, the index finger represents the liver/gall bladder. The middle finger represents heart, the ring finger represents hormones and the little finger or pinky represents digestion.
The Cerebellum
This area of the brain is responsible for fine motor movement, balance, and the brain's ability to determine limb position.
The ulnar nerve branches include: Muscular branch: Controls movement in the front of the forearm. Dorsal cutaneous branch: Sends sensory information between the brain and the middle back of the hand, pinky finger and ring finger.
If it decides yes, your brain's motor cortex, a small area that exists on the outer part of your brain, calls for messages to be sent through your spinal cord and down your arm to the muscles that control the finger.
You see, the fingers are connected to the brain through two nerves. The radial nerve connects with the thumb, index finger and one side of the middle finger, while the ulnar nerve connects with the little, ring and the other side of middle finger.
Conclusions: The middle finger was the most important contributor to grip strength. The next most important was the combination of the ring and little fingers.
The fourth finger of the left hand, believed to possess a vein that runs securely to the heart, has traditionally been ringed. This Vein of Love, or more amorously called the Vena Amoris, 1 originated in ancient Egypt, where it was first described by Macrobius in 395–423 AD.
The messages for movement and sensation cross to the other side of the brain and cause the opposite limb to move or feel a sensation. The right side of the brain controls the left side of the body and vice versa.
The median nerve provides motor (movement) functions to the forearm, wrist and hand. It also sends touch, pain and temperature sensations from the lower arm and hand to the brain.
The brain is divided into symmetrical left and right hemispheres. Each hemisphere is in charge of the opposite side of the body, so your right brain controls your left hand. The right hemisphere also takes in sensory input from your left side and vice versa.
There are a few reasons why the ring finger is the weakest finger. First, the muscles in the finger are not as strong as those in the other fingers. Second, the tendons in the finger are shorter, so they are not able to generate as much force.
According to HSE researchers, men with a high 2D:4D ratio (i.e. those whose index finger is longer than their ring finger) tend to be better educated.
Brain lateralisation and handedness. It is true, however, that the brain's right hemisphere controls the left side of the body, and the left hemisphere the right side – and that the hemispheres do actually have specialities.
This is because left-handedness is related to brain asymmetry: the way that the two brain hemispheres are specialised for different functions. In right handers, the left hemisphere controls the dominant right hand, whereas the situation is reversed in left-handers.
Doctor Answer is medically reviewed by SecondMedic medical review team. The part of the body that has the most nerve endings is probably the fingertips. Each fingertip contains approximately 3,000 nerve endings called Meissner's corpuscles, which are designed to detect light touch and vibration.
Final answer: Part of the brain that controls intelligence and memory is cerebrum.
The ulnar nerve gives feeling to the little finger and half of the ring finger. It also controls most of the little muscles in the hand that help with fine movements, and some of the bigger muscles in the forearm that help you make a strong grip.
The vein that supposedly went from the fourth finger to the heart was even dubbed the vena amoris by ancient Romans (Latin for the “vein of love”). Unfortunately, we now know that this ancient belief is not true -- there is no vein that runs from our ring fingers to our hearts.
Blue or gray fingers and toes could be from poor circulation of oxygen-rich blood, often due to a heart defect you were born with or narrowed or blocked blood vessels. A lacy, mottled, purple pattern shows up when bits of built-up cholesterol plaques break off, then get stuck in small blood vessels.
No, all fingers have veins leading to heart, not just 'ring' finger. A graphic shared on Facebook claims: “The wedding ring goes on the left ring finger because it's the only finger with a vein that connects to the heart.”
The index finger (also referred to as forefinger, first finger, second finger, pointer finger, trigger finger, digitus secundus, digitus II, and many other terms) is the second digit of a human hand.
Of all your fingers, you might think your pinky is the most useless. But your little finger is particularly important in a strong grip and hand surgeons agree if you're going to lose one, the index finger is the best one to lose.
The ring and middle fingers are usually injured while the index and little fingers are less exposed. The objective of this study was to determine the biomechanical factors leading to the enhanced exposure of ring and middle finger pulleys.
Index finger (Jupiter): helps with knowledge and prosperity. Middle finger (Saturn): brings patience and wisdom. Ring finger (Sun): aids in health and vitality, strengthens the nervous system.