Front of the forearm muscles
| |

Front of the forearm muscles

Introduction Superficial muscle of anterior compartment of the forearmThe muscles of the front of the forearm may be divided into superficial and deep groups of muscle. There are five muscles in the superficial muscle group. These are the pronator teres, the flexor carpi radialis, the palmaris longus, the flexor carpi ulnaris and the flexor digitorum…

The intrinsic muscles of the hand
| |

The intrinsic muscles of the hand

Introduction The intrinsic muscles of the hand serve the function of adjusting the hand during gripping and also for carrying out fine skilled movements. The origin and insertion of intrinsic muscles are within the territory of the hand.There are 20 muscles in the hand. These are: Four thenar musclesAbductor pollicis brevisFlexor pollicis brevisOpponents pollicisAdductor pollicis…

Back Of The Forearm Muscles
| | |

Back Of The Forearm Muscles

Introduction The muscles in the Back of the forearm muscles (posterior compartment of the forearm) are commonly known as the extensor group of muscles. The general function of these muscles is to perform extension at the wrist and fingers joints. They all are innervated by the radial nerve. Anatomically, the muscles in the posterior compartment…

Rotator Cuff Muscles: Supraspinatus, Infraspinatus, Teres minor, Subscapularis
| |

Rotator Cuff Muscles: Supraspinatus, Infraspinatus, Teres minor, Subscapularis

Introduction : The Rotator Cuff (RC) is a common name for the group of 4 distinct muscles and their tendons, which provide strength and stability during movement of the shoulder complex. The Rotator Cuff muscles arise from the scapula and connect to the humerus head, forming a cuff around the glenohumeral (GH) joint. The rotator…

Pronator Quadratus Muscle
| |

Pronator Quadratus Muscle

Pronator Quadratus Muscle Anatomy The Pronator Quadratus muscle is a small, square-shaped muscle located in the forearm of the human arm. It plays a crucial role in forearm pronation, which is the rotational movement of the forearm that turns the palm of the hand downward or backward. Origin Insertion Nerve supply Actions The lateral side…

Extensor Indicis Muscle
|

Extensor Indicis Muscle

Extensor Indicis Muscle Anatomy   Extensor indicis is a narrow, elongated muscle found in the posterior compartment of the forearm. It belongs to the deep extensors of the forearm. Together with supinator, abductor pollicis longus, extensor pollicis longus, and extensor pollicis brevis muscles, it causes the extension of the wrist and fingers. It can be palpated…

Extensor Pollicis Longus Muscle
| |

Extensor Pollicis Longus Muscle

Extensor Pollicis Longus Muscle Anatomy The extensor pollicis longus (EPL) is a thin muscle of the forearm that belongs to the posterior muscle group, lying in the second or deep layer. The extensor pollicis longus (EPL) muscle is an extrinsic thumb muscle that adducts and extends the thumb’s metacarpophalangeal (MCP) and interphalangeal (IP) joints. It…