How many knuckles

Extension: Moving the last two segments of the finger away from the base of the fingers. Adduction: Moving the pinky side of the hand toward the outer aspect of the forearm.

Abduction: Moving the thumb side of the hand toward the inner aspect of the forearm. The thumb performs different movements at three separate joints. The carpometacarpal joint is where the wrist bones, carpals, meet the metacarpals, the bones in the palm of the hand. At this articulation, the following movements can be performed. Opposition: Moving the thumb across the palm of the hand touching the other fingers.

The following movements occur at the metacarpophalangeal joint or MCP joint at the base of the thumb. Flexion: Moving the joint at the base of the thumb towards the heel of the hand.

Extension : Moving the joint at the base of the thumb away from the heel of the hand. At the interphalangeal joint of the thumb or IP joint, the following movements can be performed:. Extension hyperextension : Moving the top of the thumb away from the base of the thumb. Learn more about the steps we are taking to keep all IBJI facilities safe for patients and staff. Enjoy a Full Range of Motion. There are four joints in each finger, totaling 20 joints in each hand! The thumb joints are a little different than the other finger joints.

To learn more about the thumb joints and more about the finger joints, visit our online Anatomy section. The small, ringer, middle and index fingers all have the same four joints: Distal Interphalangeal Joint DIP : The DIP joint is located at the tip of the finger, just before the finger nail starts.

Arthritis can develop at this joint, and it is also commonly fractured. If your talking about how many will hit a person, form a fist and look at it.

This isn't exactly a subject of debate. Look at your hands and count 'em! Technically, our toes have knuckles too. Tequila Join Date: Member: Members. February edited February Including thumbs I counted 28 14 on each hand. No I'm not a freak lol I just included the ones nearest the nails; a knuckle after all is a joint isn't it? I think its 8 personally.