Forearm Muscles Anterior, Palmaris longus: Flexor carpi radialis: Flexor digitorum superficialis. Apr 10, 2026 · The upper arm is located between the shoulder joint and elbow joint. Middle of the lateral aspect of the shaft of the radius. There are many muscles in the forearm, which mainly act at the elbow or wrist to bring about different movements. It contains four muscles that exert a force on the upper limb: the pectoralis major, pectoralis minor, serratus anterior and subclavius. Superficial muscles: Pronator teres: It has two head. The flexor muscles are more massive than the extensors because they work against gravity and act as anti-gravity muscles. Tutorials and quizzes on muscles that act on the forearm/ forearm muscles (flexors and extensors of the forearm), using interactive animations and diagrams. Oct 30, 2023 · Master arm and shoulder anatomy by studying this topic page at Kenhub. They have two categories: intrinsic and extrinsic muscles. In this article, we shall look at the anatomy of the muscles of the upper arm – their attachments, innervation and actions. Nov 3, 2023 · Anterior axio-appendicular shoulder muscles Anterior shoulder muscles, also called the pectoral muscles, attach the upper extremity to the clavicle and the thoracic cage. It contains four muscles – three in the anterior compartment (biceps brachii, brachialis, coracobrachialis), and one in the posterior compartment (triceps brachii). Jan 21, 2021 · The forearm contains two compartments, the anterior (flexor) and posterior (extensor). . In this article, we shall look at the anatomy of the muscles of the pectoral region – their attachments, actions and innervation. Flexor carpi ulnaris: Origin: It has two head. Dec 17, 2022 · Study Anterior Forearm Muscles with 10 flashcards on Anatomy. Besides arm anatomy Explore upper limb muscles including the shoulder, arm, forearm and hand. In this article, we will discuss theanterior compartment of the forearm in the setting of their attachment points, function, innervation and vascular supply, while providing clinical examples to reinforce this in Anterior compartment of the forearm muscles divided into superficial & deep muscles. Jan 13, 2024 · The biceps attach to the brachialis and coracobrachialis muscles to form a trio within the anterior compartment of the upper arm. Learn more about the anatomy and functions of the human body muscles with the Nov 6, 2025 · The pectoral region is located on the anterior chest wall. Forearm muscles in the anterior compartment are arranged in superficial, intermediate, and deep categories. May 27, 2025 · Anterior or volar compartment forearm muscles are responsible for wrist flexion, finger flexion, and forearm pronation. [3] The radial and ulnar arteries and their branches supply the blood to the forearm. The ulnar nerve also runs the length of the forearm. Extension involves increasing the angle between the arm and forearm. Forearm muscles or antebrachium work together to move the elbow, forearm, wrist, and digits of the hand. These movements are performed by two groups of muscles in the arm: the anterior compartment and the posterior compartment of the arm. [1] It shares nerve supply, forming a collaboration that enhances their collective strength. The two compartments together have twenty muscles. These muscles include the pectoralis major, pectoralis minor, subclavius and the serratus anterior muscle. Click now to learn about the bones, muscles, arteries, and nerves of these regions! Aug 27, 2018 · The arm is one of the body’s most complex and frequently used structures. We’ll go over the bones, joints, muscles, nerves, and blood vessels that make up the human arm. The anterior compartment contains all the flexors of the forearm, hand, and fingers. The anterior compartment contains the flexors and is mainly supplied by the median nerve. This creates an anterior compartment that contains the flexor muscles, and a posterior one that contains the extensor muscles. They can be categorised into anterior and posterior compartments, and can be challenging to learn. These are further divided into three groups: superficial, intermediate, and deep flexors. Deep muscles: Nov 28, 2023 · Just like the arm, the forearm is divided into two compartments by deep fascia; the interosseous membrane, and the fibrous intermuscular septa. All of them are supplied by the respective branches of the brachial Sep 11, 2023 · Flexion of the forearm at the elbow joint involves decreasing the angle between the forearm and the arm at the elbow joint. They are attached to bones via tendons and contract to cause movement at the joints. Muscular System The muscular system is made up of three types of muscle tissue: skeletal, cardiac and smooth. Create, review, and master key concepts on Cram. [1] Illustration of the biceps brachii muscle highlighting its structure, parts, and role in arm movement. There are 20 muscles separated intotwo compartments. Learn origins, insertions, actions and innervations with clear clinical context. Dec 15, 2025 · Clear overview of the anterior forearm flexor muscles, covering anatomy, attachments, actions, innervation, and key clinical correlations for exam revision. The forearm is the portion of the arm distal to the elbow and proximal to the wrist. In this section, we'll focus on the skeletal muscles of the body involved in voluntary movement and maintaining posture. ajt o4hqn g8az 3whw vw ukg 7tv5e1 ndd 20 l4j