Category : Muscles

Anatomy Forearm Muscles Wrist

Anatomy 101: Wrist Muscles and Forearm Muscles

The wrist muscles and forearm muscles do so much more than give you strength in your arm and wrist. These muscles also play a part in helping you move your hand and fingers. There are 18 different muscles!

Here’s a preview of these muscles:

  • Flexor pollicis longus: Helps you bend the tip of your thumb.
  • Flexor digitorum profundus: Helps you bend your index, middle, ring and small fingers.
  • Flexor digitorum superficialis: Helps you bend the middle joint of each finger, except for the thumb, which allows you to do things such as eating with chopsticks.
  • Flexor carpi ulnaris: Helps you move your wrist away from the thumb, which is helpful in playing darts.
  • Brachioradialis: Helps you twist your forearm so your palm is either facing up or down.
  • Flexor carpi radialis: Helps you bend the wrist and move it toward the thumb.
  • Palmaris longus: Helps you bend the wrist.
  • Extensor pollicis brevis: Helps you straighten the thumb.

To learn more about all 18 muscles, visit our wrist and forearm muscles page on www.HandCare.org.

Read More
Anatomy Elbow Hand Muscles

Anatomy 101: Elbow Muscles

Elbow Muscles without border

 

The muscles that control your elbow are actually located in the upper and lower arm. There are three muscles and one tendon that help your elbow move. They are:

  1. Biceps Brachii: This is a muscle that is in the upper arm. It allows you to bend your elbow and rotate your forearm so that the palm faces up.
  2. Brachialis: This is a muscle located in the lower arm. It also helps bending of the elbow.
  3. Triceps Brachii: This is the third muscle. Located in the arm, it allows you to straighten your elbow.
  4. Lacertus: This is a thick tendon that runs from the tendon of the biceps.

Learn more about elbow muscles and other muscles, bones, joints and tendons of the upper extremity at www.HandCare.org.

Read More
Anatomy Hand Muscles

Anatomy 101: Hand Muscles

Muscles-Hand-Lumbricals

There are both intrinsic and extrinsic muscles of the hand. The intrinsic muscles are in the hand itself, while the extrinsic muscles are in the forearm and control things such as your ability to grip an object. The intrinsic muscles include:

  • Interossei: Located between the bones of the hand
  • Hypothenar: Located in the palm
  • Lumbricals: Each of the four lumbrical muscles are associated with a finger.
  • Thenar: Located at the base of the thumb

Learn more about the hand muscles that allow you to perform daily activities with the anatomy tool at www.handcare.org.

Read More
Anatomy Muscles Shoulder

Anatomy 101: Shoulder Muscles

13-6

What gives you the ability to throw a ball or reach for the top shelf? Shoulder muscles. Brush up on your anatomy knowledge with the interactive anatomy tool on www.handcare.org and learn about the muscles of the shoulder.

Read More