Long bones are found in the upper limbs (humerus, ulna, radius) and lower limbs (femur, tibia, fibula), as well as in the hands (metacarpals, phalanges) and feet (metatarsals, phalanges). Long bones function as rigid bars that move when muscles contract.

Jan 3, 2023 · What is the humerus? The humerus is your upper arm bone. Other than the bones in your leg, it’s the longest bone in your body. It’s a critical part of your ability to move your arm. Your humerus also supports lots of important muscles, tendons, ligaments and parts of your circulatory system. Cleveland Clinic is a non-profit academic medical center.

Oct 30, 2023 · The humerus is the longest and largest bone of the upper limb. It consists of a proximal end, a shaft and a distal end, all which contain important anatomical landmarks. The humerus articulates with the scapula proximally at the glenohumeral joint so it participates in the movements of the shoulder.

In this section, learn more about the anatomy of the bones of the upper limb – the clavicle, scapula, humerus, radius, ulna and hand bones.

Mar 11, 2025 · In the forearm are the radius —on the thumb side of the forearm—and the ulna; in the lower leg are the tibia (the shinbone) and the fibula. The radius corresponds to the tibia and the ulna to the fibula. The knee joint not only is the largest joint in the body but also is perhaps the most complicated one.

Feb 28, 2022 · Your humerus is the long bone in your upper arm that's located between your elbow and shoulder. A fracture is one of the most common injuries to the humerus.

Feb 15, 2020 · The humerus is the largest bone of the upper extremity and defines the human brachium (arm). It articulates proximally with the glenoid via the glenohumeral (GH) joint and distally with the radius and ulna at the elbow joint.

Sep 26, 2024 · The humerus is responsible for supporting your shoulder and for movement between your elbow and shoulder. The humerus can be injured in a few different ways, including dislocation and fracture. Some other conditions that affect the humerus include tendonitis, frozen shoulder, and osteoarthritis.

Jan 28, 2025 · The humerus is the long bone of the upper arm or forelimb in humans and other vertebrates. It is the largest bone in the arm, extending from the shoulder to the elbow. The humerus is a key part of the skeletal system, contributing to the …

Aug 8, 2023 · The method accesses the bone marrow of long bones which have a rich venous plexus that feeds into the systemic circulation. The tibia is commonly used as an IO access point. The proximal tibia is the most common location followed by the distal portion. Another commonly used bone is the proximal humerus.