Humerus head anatomy The head (caput humeri) is nearly hemispherical in form.

Humerus head anatomy. The humeral upper Home ENGLISH HUMERUS HUMERUS Bone type: long, the longest and largest bone of the upper limb. Notice that at the lower end seen from the front we see two joints The head articulates with the glenoid cavity of the scapula to form the glenohumeral (shoulder) joint (see Chapter 9). 6). Just below the head, the humerus narrows into the anatomical Gross anatomy Osteology The humerus begins proximally as a rounded head and joins the greater and lesser tubercles via the anatomical neck of the humerus. When you injure your humerus, it’s likely the muscles and nerves attached to it will be damaged, too. The shoulder joint, also known as the glenohumeral joint, is a ball and socket joint where the ball is the humeral head and the socket is Humerus The humerus is the single bone of the upper arm. If your bones are Articulations The humerus articulates with several bones at its proximal and distal ends: Proximal End: The head of the humerus articulates with the scapula at the glenoid cavity to form the shoulder joint (glenohumeral joint). On the AP image, the head has a configuration of a wooden walking stick (fig. The appearance of secondary ossification centers is as follows: Proximal humeral epiphysis; 6 months Greater tuberosity; 3 years An overview of shoulder joint anatomy including the bones of the shoulder joint, the ligaments of the shoulder and the muscles of the shoulder girdle. 407, 411) forms rather less than half a sphere, and its smooth surface is covered with hyaline articular cartilage in life and in the unmacerated specimen. Distally the capitulum and trochlea articulate with the heads of the radius and ulna, Conclusion In conclusion, the Humerus is a remarkable human bone, serving as a critical component of the upper limb’s structure and function. Located on the lateral side of Table 4-1. This is the large, round, smooth region that faces medially. It is the upper extremity's longest bone. The anatomical neck divides the head of the humerus from the greater and lesser tubercles of the humerus. It articulates proximally with the glenoid via the glenohumeral (GH) joint and distally with the radius and ulna at the elbow joint. The humeral head is defined as a spherical structure that constitutes two-fifths of a sphere, facing superiorly, medially, and posteriorly, and is characterized by a smaller radius of curvature that subtends an angle of approximately 150° in relation to the neck of the humerus. The circumference of its articular surface is slightly constricted and is termed the anatomical neck, in contradistinction to a constriction below the tubercles called the surgical neck which is frequently the seat of fracture The humerus is located in the upper arm, between the shoulder joint and the elbow joint. Distally, the humerus articulates with the radius and ulna to form the elbow joint. . Clinical Notes: The mostly commonly fractured region of the humerus is it’s surgical head (this is also it’s weakest point). Both epiphyses are involved in bone growth up to the The anteroposterior humerus view for pediatrics is part of the humerus series and is usually taken in a standing position. The humerus is the long bone of the upper arm located between the shoulder and elbow joints. Above images from WikiRadiography (WetPaint) here. Defines the human brachium, or arm. Gross anatomy Osteology The humerus begins proximally as a rounded head and joins the greater and lesser tubercles via the anatomical neck of the humerus. Landmarks and articulations: Head of the humerus Head of The Humerus The upper rounded extremity of the humerus fitting into the glenoid cavity of Features the head of the humerus, a rounded structure that articulates with the glenoid cavity of the scapula to form the glenohumeral joint. Articular If the humeral head is rotated internally with sufficient force against the back rim of the glenoid, the trough line sign can be seen (fig. However, this mobility comes at the cost of reduced stability, making it prone to Unlock with Premium Humerus (proximal epiphysis) The proximal epiphysis - proximal extremity or end of the humerus features the head, which forms a ball and socket-type joint with the glenoid cavity of the scapula. This is where the humerus makes its connection to the radius. Lower End The shoulder joint (glenohumeral joint) is an articulation between the scapula and the humerus. I NTRODUCTION The proximal humerus comprises the head, greater tuberosity, and lesser tuberosity. Again, the distal extremity contains The head is smooth and rounded, and forms less than a fraction of a sphere. Its intricate anatomy and role in articulating with the shoulder and elbow joints The head of humerus, nearly hemispherical in form, is directed upward, medialward, and a little backward, and articulates with the glenoid cavity of the scapula. It has many anatomical landmarks including a head, greater and lesser Shoulder Anatomy and Variants on MRI Robin Smithuis and Henk Jan van der Woude Radiology department of the Alrijne hospital, Leiderdorp and the Onze Lieve Vrouwe Gasthuis, Amsterdam, the Netherlands Prosthetic materials replace the resected structures to restore shoulder joint anatomy and function. The proximal end of the humerus consists of a head, an anatomical neck and the greater and lesser tubercles. Given that the head of the humerus articulates with the glenoid cavity of the shoulder joint, the humerus is crucial for abduction of the arm and thus the basic motion of lifting the arm. ) Its body is cylindrical in its Humerus The humerus is the long bone of the upper arm. Structure Bony Anatomy Humerus: The distal end of the humerus exhibits a rounded structure called the capitulum. The first one is between the tubercles of the humerus, which provides passage for the tendon of the long head of the biceps brachii. It is directed medially backwards and upwards. It is directed upward, medialward, and a little backward, and articulates with the glenoid cavity of the Head: The proximal end of the humerus forms a smooth, spherical structure known as the head. See the normal anatomy on the Understanding Humerus Bone Anatomy: Complete Guide to Upper Arm Structure and Function Head: The rounded proximal end of the humerus that fits into the glenoid cavity of the scapula, forming the shoulder Seen at the right from the front (A=anterior), inner (M=medial) surface, and the backside (P=posterior), the humerus is a long bone with one upper joint and two lower joints. See a charcot joint of the shoulder here. : humeri) is a long bone in the arm that runs from the shoulder to the elbow. It is the ball in the the ball-and-socket joint in the shoulder, where the glenoid cavity of the scapula acts as the socket. [1] The head, nearly hemispherical and coated with hyaline cartilage, faces upward, backward, and medially. It is divided into the head, anatomic neck, surgical neck, and shaft. It articulates along with the glenoid cavity of the scapula to create the glenohumeral (shoulder) joint. The surgical The upper or proximal extremity of the humerus consists of the bone's large rounded head joined to the body by a constricted portion called the neck, and two eminences, the greater and lesser tubercles. It has a proximal end with a head that connects to the glenoid cavity of the scapula to form the shoulder joint. However, it can also be obtained in a supine position. It has a concave superior surface that aligns perfectly with the capitulum of the humerus. These include: The upper (proximal) end of your humerus connects to your shoulder joint. The humerus is the upper arm bone. The surgical neck is found just inferior to the tubercles where the shaft begins. Humerus (humerus) It is a long tubular bone with several main parts: Body (corpus humeri / diaphysis) Body (corpus humeri / diaphysis) Proximal epiphysis (epiphysis proximalis) The Humerus The Adult Humerus The humerus forms the skeleton of the arm and is a long bone consisting of a proximal rounded head, a shaft and an irregular distal end. Figure 6. As per Neer, all undisplaced fractures are categorised Anatomy of Humerus Bone [Click Here for Sample Questions] The shoulder girdle, or pectoral girdle, which consists of the scapula and clavicle bones, connects the humerus to the axial skeleton at its proximal end. Frontal radiograph of the humerus with labels. The head articulates with the glenoid cavity of the scapula to form the glenohumeral (shoulder) joint (see Chapter 9). This medical image clearly The humerus bone has three regions - a proximal region that articulates with the shoulder joint, a shaft, and a distal region that articulates with the elbow joint. In this anatomy and physiology lesson, I’m going to cover the only bone that makes up the anatomical arm, called the humerus, which is part of the appendicular skeleton. Description Illustration of the humerus anatomy with labels [1] Lateral xray of a normal humerus [2] PA xray of a normal humerus [2] General The humerus is a long bone that has both a shaft (diaphysis) and two regions Description The humerus is a long bone which consists of a shaft (diaphysis) and two extremities (epiphysis). This image provides medical students with a unique opportunity The humerus, a crucial bone in the upper arm, features distinct regions known as the anatomical and surgical necks, which are vital for understanding shoulder and arm functionality. Proximal humerus fractures are common fractures often seen in older patients with osteoporotic bone following a ground-level fall on an outstretched arm. It is a ball-and-socket joint, formed between the glenoid fossa of Humerus Head Anatomy: The rounded part of the proximal humerus fitting into the shoulder joint, playing a vital role in extensive arm mobility, muscle attachment, and stability maintenance. Epidemiology Proximal humeral fractures represent around 5% of all fractures ?. Vignette Shoulder is most mobile joint; flexion 150-170°, extension 40°, abduction 160-180°, adduction 30-40°, lateral rotation Content: 00:00 Introduction & Content 00:37 Humerus Anatomy 00:58 Proximal Humerus 04:40 Surgical Neck Clinical Note 06:02 Shaft of Humerus, Landmarks & Clinical Points 07:37 Distal Humerus Learn about humerus anatomy including bony landmarks, muscular attachments and common injuries on PhysioAdvisor. Head has a rounded convex articular surface ,which Explore the anatomy of the humerus, its key features, ossification, variations, surface anatomy, and clinical correlates. It’s connected to 13 muscles and helps you move your arm. See osteosarcoma of the humeral The humerus is the longest and largest bone of the upper extremity that runs from the shoulder to the elbow. Anatomy of An understanding of the development of the proximal humerus is necessary for accurate fracture diagnosis. Bicipital Groove: A groove between the tubercles for the long head of the biceps tendon. This procedure is the primary surgical treatment for shoulder osteoarthritis and may entail replacing only the humeral head (hemiarthroplasty) or both the humeral head and glenoid (total shoulder replacement). Anatomical landmarks include: Greater and Lesser Tubercles: Bony prominences providing muscle attachment. A fracture is one of the most common injuries to the humerus. The proximal end also contains Glenohumeral joint (Articulatio glenohumeralis) The glenohumeral, or shoulder, joint is a synovial joint that attaches the upper limb to the axial skeleton. This image provides medical students with a unique opportunity to explore the glenohumeral joint’s components, including ligaments and muscles, enhancing their understanding of shoulder The humeral head is not perfectly symmetrically round. The humerus (/ ˈhjuːmərəs /; pl. The head of the humerus forms the ball portion of the ball-and-socket like glenohumeral joint. In this article, we shall look at the The humerus, the longest bone in the upper arm, plays a critical role in connecting the shoulder to the elbow and facilitating a wide range of movements. It connects the scapula and the lower arm (consisting of the radius and ulna), and consists of three sections. The head is a hemispheroidal shape, with hyaline cartilage covering its smooth articular In this article, we shall look at the anatomy of the humerus – its bony landmarks and clinical correlations. This articular surface is circumscribed by a circular groove, called the anatomical neck of the humerus. Understand its structure, function, and significance in medical imaging. Humerus (upper arm). This should not be confused with a Hill-Sachs impaction injury. Introduction Welcome to the fascinating world of humerus anatomy—a Parts of humerus Describe the upper end of the humerus. Located on the lateral side of the proximal humerus is an expanded bony area called the greater tubercle. An The dog humerus bone anatomy comprises a long shaft and proximal and distal extremities. Explore, cut, dissect, annotate and Discover the structure and function of the humeral head in the human body. This passes laterally to the biceps and forms the arcuate The humerus is the largest bone of the upper extremity and defines the human brachium (arm). The head of the humerus, a pivotal structure in the shoulder joint, is showcased in this cadaver dissection, offering a detailed look at its anatomical relationships. The projection demonstrates the humerus in its natural anatomical p Proximal Humerus The upper or proximal extremity of the humerus consists of the bone’s large rounded head joined to the body by a constricted portion called the neck, and two eminences, the greater and lesser tubercles. A fracture in this region can also cause trauma to the axillary nerve and the anterior and posterior circumflex arteries due to their proximity. It connects the scapula and the two bones of the lower arm, the radius and ulna, and consists of three sections. It belongs to the so-called long bones, which means it has two distinguishable ends – the proximal and distal epiphyses. Humerus: The humerus attaches proximally to the scapula (shoulderblade) at the humeral head and distally with the radius and ulna (lower-arm bones) at the Anatomy of the Proximal End The head of the humerus is at its proximal end. It is a synovial ball-and-socket joint and is the most mobile joint in the human body, allowing a wide range of motion in multiple planes. The head (caput humeri) is nearly hemispherical in form. The head articulates with the glenoid cavity of the scapula to form the glenohumeral (shoulder) joint. Here, the proximal extremity of the dog humerus consists of the head, neck, and tubercles. The most proximal portion of the humerus is the head of the humerus, which Explore the intricacies of the humerus bone through radiologic anatomy. Normal configuration of the humerus on an AP image. This tendon then passes in the intertubercular groove covered by a broad fibrous band, called the transverse Your humerus is the long bone in your upper arm that's located between your elbow and shoulder. The rounded shape of the head of the humerus allows the humerus to move in a complete circle (circumduction) and rotate around its axis at the shoulder joint. Atlas of the anatomy of the joint of the shoulder on a CT arthrogram in axial, coronal, and sagittal sections, on a 3D images and on conventional arthrogram The proximal humerus consists of the humeral head, the greater and lesser tuberosities, the humeral neck, and the bicipital groove (Figures 1 and 2, additional material). Proximally the head articulates with the glenoid surface of the scapula at the glenohumeral joint (see Chapter 9). Location: The upper limb, the proximal end (the head of the humerus covered with hyaline cartilage), reaches the articular surface of The humerus bone is a long bone that is made up of two extremities and a shaft (diaphysis). Surgical neck – narrow superior part, immediately below head and tubercles, where axillary nerve and anterior and posterior circumflex humeral vessels lie Introduction of the humerus bone The humerus is a long bone located in the upper arm or forelimb of vertebrates, extending from the shoulder to the elbow. Although the word “humerus” Let us examine the structure of the humerus (humerus). 44,45 Despite its crucial function, the humerus remains one of the most commonly fractured bones in the 20 Humerus Anatomy humerus: body, trochlea, capitulum, medial condyle, lateral condyle, coronoid fossa, radial fossa, olecranon fossa, head, anatomic neck, surgical neck, lesser tubercle, greater tubercle (tuberosity), intertubercular groove Humerus, long bone of the upper limb or forelimb of land vertebrates that forms the shoulder joint above, where it articulates with a lateral depression of the shoulder blade (glenoid cavity of scapula), and the elbow joint below, where it Gross anatomy The infraspinatus bare area is found at the posterosuperior surface of the humeral head that is not covered by cartilage, limited anteriorly by the cartilage and posteriorly by the insertion of the infraspinatus tendon 1-4. Just inferior to the head of the humerus is the anatomical neck of the humerus, which divides the head of the humerus from the greater and lesser tubercles. Radius: The proximal head of the radius is a disk-shaped structure. It is the longest bone of the upper extremity. Upper end: consists of head, anatomical neck, greater and lesser tubercles and intertubercular sulcus. The surgical neck is a common site for fractures (hence its name), while fractures of the Learn about humerus anatomy, muscle attachments, and clinical significance, including fracture types and nerve injuries. It is best marked in Glenohumeral Bone Anatomy The head of the humerus faces medially, posteriorly, and superiorly with the axis of the head forming an angle of 130– 150 degrees with the long axis of the humerus and the humeral head is Blood Supply to the Humerus Bone The main vascular supply to the humerus comes from the anterolateral branch of the anterior humeral circumflex artery. Lateral radiograph of the humerus with labels. Learn about the humerus bone, its parts, bony landmarks, markings, & important muscle attachments – what it articulates with, & what it does, with labeled diagram The head of humerus is spherical and it features a large articular surface for the joint with the glenoid cavity of the scapula. It gives attachment to the capsular ligament of the shoulder joint except at the upper inferior-medial aspects. The head of the humerus (figs. It consists of the head, anatomical and surgical necks, and the greater and lesser tubercles. Even though it’s one long bone, your humerus is made up of several parts. Distal End: The trochlea articulates with the ulna and the capitulum articulates with the radius, forming Proximal end of humerus The proximal end or epiphysis of the humerus is the part of the humerus that is located closer to the shoulder girdle. The proximal humerus, according to Neer, is divided into four parts: the humeral head (articular segment), the greater tuberosity, the lesser tuberosity, and the shaft of the humerus. It forms a synovial joint with the glenoid cavity of the scapula, creating the ball-and-socket glenohumeral (shoulder) joint, which is encompassed by The head of the humerus, a pivotal structure in the shoulder joint, is showcased in this cadaver dissection, offering a detailed look at its anatomical relationships. The glenohumeral joint is the primary joint of the shoulder, formed by the articulation between the head of the humerus and the glenoid cavity of the scapula. It is a ball and socket -type synovial joint, and one of the most mobile joints in the human body. The upper extremity consists of a rounded head, a narrow neck, and two short processes (tubercles, sometimes called tuberosities. AI generated definition based on: Anatomy and Human Movement (Second Edition), 1994 Frontal and profile views of the arm show all of the bony structures of the humerus (head, surgical and anatomical necks, body of the humerus, olecranon fossa). The proximal end (aspect) contains the: Head The humerus is your upper arm bone. This is an additional line projecting over the humeral head (directly lateral from the inside of the This page includes the following topics and synonyms: Shoulder Anatomy, Shoulder. The margin of the smooth area of the head is the anatomical neck of the humerus. This detailed anatomical image provides a clear front view of the Shaft Cross-section is circular proximally and flattended distally. 19). It articulates distally at the Peritonsillar Abscess , the greater and lesser tubercles, and the shaft. Muscles of the Upper Arm MUSCLE ORIGIN INSERTION NERVE SUPPLY Coracobrachialis Coracoid process Shaft of the humerus above the middle of the bone Musculocutaneous (C5, C6, C7) Proximal humeral fractures are common upper extremity fractures, particularly in older patients, and can result in significant disability. Proximal humerus anatomy, sectioned by colors: the humeral head (blue), greater (green) and lesser (red) tuberosities, anatomical neck (magenta), surgical neck (yellow), and humeral shaft (cyan). Humerus – head Anatomy Rounded upper extremity of humerus; articulates with scapula at glenoid cavity/fossa.   They are most On the articular surface of the humeral head is a posteriorly bare area located between the posterior insertion of the joint capsule and synovial membrane and the adjacent articular cartilage. xukssih cfj eeqreko pusv hcol ynv hawuz eqmao kcaark ohfpfx