ulna

The ulna (Elbow Bone) [Figs. 1, 2] is a long bone, prismatic in form, placed at the medial side of the forearm, parallel with the radius. Ulna - Articulations. The ulna articulates with: the humerus, at the elbow as a hinge joint. the radius, near the elbow as a pivot joint, this allows the radius to cross over the ulna in pronation. the distal radius, where it fits into the ulna notch.

See also:

Ulna, Ulna - Articulations, Ulna - Proximal and distal aspects, Ulna - The upper extremity, Ulna - The olecranon, Ulna - The coronoid process, Ulna - The semilunar notch, Ulna - The radial notch, Ulna - The body or shaft, Ulna - Borders, Ulna - Surfaces, Ulna - The lower extremity, Ulna - Structure, Ulna - Ossification

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('corpus ulnæ') The body at its upper part is prismatic in form, and curved so as to be convex behind and lateralward; its central part is straight; its lower part is rounded, smooth, and bent a little lateralward. It tapers gradually from above downward, and has three borders and three surfaces. Ulna - Borders. The volar border (margo volaris; anterior border) begins above at the prominent medial angle of the coronoid process, and ends below in front of the styloid process. Its upper part, ...

See also:

Ulna, Ulna - Articulations, Ulna - Proximal and distal aspects, Ulna - The upper extremity, Ulna - The olecranon, Ulna - The coronoid process, Ulna - The semilunar notch, Ulna - The radial notch, Ulna - The body or shaft, Ulna - Borders, Ulna - Surfaces, Ulna - The lower extremity, Ulna - Structure, Ulna - Ossification

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In tetrapods, the carpus is the cluster of bones in the hand between the radius and ulna and the metacarpus. The bones of the carpus do not belong to individual fingers, whereas those of the metacarpus do. The joint between the radius and ulna and the carpus is called the wrist. The corresponding part of the foot is the tarsus. The skeleton of the hand [Figs. 1, 2] is subdivided into three segments: the carpus or wrist bones; the metacarpus or bones of the palm; and the phalanges or bones of the d ...

Including:

Carpus - The Carpus Ossa Carpi Carpus - Common Characteristics of the Carpal Bones

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In human anatomy, the carpal bones are the bones of the human wrist. There are eight of them altogether, and they can be thought of as forming two rows of four. Carpal bone - Proximal Row. Scaphoid (or navicular) - this bone, with the lunate, articulates with the radius of the arm. Lunate - articulates with the radius and the capitate. Triquetrum - on the ulnar side of the hand, but does not articulate with the ulna. Pisiform - a se ...

Including:

Carpal bone - Proximal Row Carpal bone - Distal Row

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Coelurosauria is a group of theropod dinosaurs that includes the subgroups Tyrannosauridae, Ornithomimidae, and Maniraptora. Coelurosaur characteristics include an extended sacrum, a distally stiffened tail and a bowed ulna. The tibia is also characteristically longer than the femur in coelurosaurs. Recent fossil evidence shows that some coelurosaurs were feathered, and it is conceivable (and indeed the most parsimonious hypothesis) that feathers may have been a feature of the entire group. Most coelurosaurs are bipedal ...

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The elbow-joint (Articulatio Cubiti) [Figs. 1,2] is a ginglymus or hinge-joint. The trochlea of the humerus is received into the semilunar notch of the ulna, and the capitulum of the humerus articulates with the fovea on the head of the radius. The articular surfaces are connected together by a capsule, which is thickened medially and laterally, and, to a less extent, in front and behind. These thickened portions are usually described as distinct ligaments. Elbow-joint - Ligaments. Elb ...

Including:

Elbow-joint - Ligaments
Elbow-joint - The anterior ligament Elbow-joint - The posterior ligament Elbow-joint - The ulnar collateral ligament Elbow-joint - The radial collateral ligament
Elbow-joint - Synovial membrane Elbow-joint - Movements

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The ulna is broader proximally, and narrower distally. Proximally, the ulna has a bony process, the olecranon process, a hook-like structure that fits into the olecranon fossa of the humerus. This prevents hyperextension and forms a hinge joint with the trochlea of the humerus. There is also a radial notch for the head of the radius, and the ulna tuberosity to which muscles can attach. Distally (near the hand), there is a styloid process. See also:

Ulna, Ulna - Articulations, Ulna - Proximal and distal aspects, Ulna - The upper extremity, Ulna - The olecranon, Ulna - The coronoid process, Ulna - The semilunar notch, Ulna - The radial notch, Ulna - The body or shaft, Ulna - Borders, Ulna - Surfaces, Ulna - The lower extremity, Ulna - Structure, Ulna - Ossification

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The humerus was the largest bone of the arm, its head articulating with the glenoid cavity of the pectoral girdle, distally with the radius and ulna. The radius resided on the inner side of the forearm and rested directly under the humerus, supporting much of the weight, while the ulna was located to the outside of the humerus. The ulna had a head, which muscles pulled on to extend the limb, called the olecranon that exten ...

See also:

Tetrapod, Tetrapod - Devonian Tetrapods, Tetrapod - Carboniferous Tetrapods, Tetrapod - Permian Tetrapods, Tetrapod - Classification of Tetrapods, Tetrapod - Anatomical features of early tetrapods, Tetrapod - Classification, Tetrapod - Skull, Tetrapod - Dentition, Tetrapod - Sensory Organs, Tetrapod - Hearing, Tetrapod - Girdles, Tetrapod - Limbs, Tetrapod - Feeding, Tetrapod - Respiration, Tetrapod - Locomotion

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The human arm contains bones, joints, muscles, nerves, and blood vessels. Many of these muscles are used for everyday tasks. Arm - Bony structure and joints. The humerus is the (upper) arm bone. It joins with the scapula above at the shoulder joint (or glenohumeral joint) and with the ulna and radius below at the elbow joint. Main article: Shoulder The shoulder is the ball-and-socket joint between the proximal end of the humerus and the clavicle and scapula.

See also:

Arm, Arm - Anatomy of the human arm, Arm - Bony structure and joints, Arm - Osteofascial compartments, Arm - Cubital fossa, Arm - Nervous supply, Arm - Blood supply and venous drainage

Read more here: » Arm: Encyclopedia II - Arm - Anatomy of the human arm

Elbow-joint - The anterior ligament. The anterior ligament [Fig. 1] is a broad and thin fibrous layer covering the anterior surface of the joint. It is attached to the front of the medial epicondyle and to the front of the humerus immediately above the coronoid and radial fossæ below, to the anterior surface of the coronoid process of the ulna and to the annular ligament, being continuous on either side with the collateral ligaments. Its superficial fibers pass obliquely from the medial epicondyle ...

See also:

Elbow-joint, Elbow-joint - Ligaments, Elbow-joint - The anterior ligament, Elbow-joint - The posterior ligament, Elbow-joint - The ulnar collateral ligament, Elbow-joint - The radial collateral ligament, Elbow-joint - Synovial membrane, Elbow-joint - Movements

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The human arm contains bones, joints, muscles, nerves and blood vessels. Many of these muscles are used for everyday tasks. There are clinical uses for the arm, including venepuncture and peripheral venous cannulation in the cubital fossa. Arm - Bony structure and joints. The humerus is the (upper) arm bone. It articulates with the scapula above at the glenohumeral joint (shoulder) and with the ulna and radius below as the elbow joint. Main article: shoulder The shoulder is the ball-and-socket joint between the proximal ...

See also:

Arm, Arm - Anatomy of the human arm, Arm - Bony structure and joints, Arm - Osteofascial compartments, Arm - Cubital fossa, Arm - Nervous supply, Arm - Blood supply and venous drainage

Read more here: » Arm: Encyclopedia II - Arm - Anatomy of the human arm

The joint is surrounded by a capsule, strengthened by the following ligaments: Wrist - Volar radiocarpal ligament. ('ligamentum radiocarpeum volare; anterior ligament') This ligament is a broad membranous band, attached above to the anterior margin of the lower end of the radius, to its styloid process, and to the front of the lower end of the ulna; its fibers pass downward and medialward to be inserted into the volar surfaces of the navicular, lunate, and triangular bones, some being continued to t ...

See also:

Wrist, Wrist - Ligaments, Wrist - Volar radiocarpal ligament, Wrist - Dorsal radiocarpal ligament, Wrist - Ulnar collateral ligament, Wrist - Radial collateral ligament, Wrist - Synovial membrane, Wrist - Specific joints of the wrist and hand, Wrist - Movements, Wrist - Accessorizing the wrist joint

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The lower extremity is large, of quadrilateral form, and provided with two articular surfaces - one below, for the carpus, and another at the medial side, for the ulna. The carpal articular surface is triangular, concave, smooth, and divided by a slight antero-posterior ridge into two parts. Of these, the lateral, triangular, articulates with the navicular bone; the medial, quadrilateral, with the lunate bone. The articular surface for the ulna is called the ulnar notch (sigmoid cavity) of the radius; it is narrow, concave, ...

See also:

Radius bone, Radius bone - The Upper Extremity, Radius bone - The Body or Shaft, Radius bone - Borders, Radius bone - Surface, Radius bone - The Lower Extremity, Radius bone - Structure, Radius bone - Ossification

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The synovial membrane is very extensive. It extends from the margin of the articular surface of the humerus, and lines the coronoid, radial and olecranon fossæ on that bone; it is reflected over the deep surface of the capsule and forms a pouch between the radial notch, the deep surface of the annular ligament, and the circumference of the head of the radius. Projecting between the radius and ulna into the cavity is a crescentic fold of synovial membrane, suggesting the division of the joint into two; ...

See also:

Elbow-joint, Elbow-joint - Ligaments, Elbow-joint - The anterior ligament, Elbow-joint - The posterior ligament, Elbow-joint - The ulnar collateral ligament, Elbow-joint - The radial collateral ligament, Elbow-joint - Synovial membrane, Elbow-joint - Movements

Read more here: » Elbow-joint: Encyclopedia II - Elbow-joint - Synovial membrane

A variety of muscles attach to the humerus. These enable movement at the elbow and at the shoulder. Anconeus muscle - attaches to the lateral surface of the olecranon (and also to the superior part of the posterior surface of the ulna) Brachioradialis muscle - attaches to the proximal two-thirds of the lateral supracondylar ridge Coracobrachialis muscle - attaches to the middle third of the medial humerus Deltoid muscle - attaches to the deltoid tuberosity Extensor carpi radialis brevis muscle ...

See also:

Humerus, Humerus - Articulations, Humerus - Muscle attachments, Humerus - Rotator Cuff Muscles, Humerus - Structure, Humerus - Upper extremity, Humerus - Borders, Humerus - Surfaces, Humerus - The lower extremity, Humerus - Ossification, Humerus - Clinical Considerations

Read more here: » Humerus: Encyclopedia II - Humerus - Muscle attachments

List of diseases starting with F - Fea-Fer. Fealty syndrome Febrile seizure Fechtner syndrome Feigenbaum Bergeron Richardson syndrome Feigenbaum Bergeron syndrome Feingold Trainer syndrome Felty's Syndrome Female pseudohermaphrodism Genuardi type Female pseudohermaphrodism Femoral facial syndrome Femur bifid with monodactylous ectrodactyly Femur fibula ulna syndrome Fenton Wilkinson Toselano syndrome Ferlini Ragno Calzolari syndrome Fernhoff Blackston Oakley sy ...

See also:

List of diseases starting with F, List of diseases starting with F - Fa, List of diseases starting with F - Fab, List of diseases starting with F - Fac, List of diseases starting with F - Fah-Fal, List of diseases starting with F - Fam, List of diseases starting with F - Fan-Faz, List of diseases starting with F - Fe, List of diseases starting with F - Fea-Fer, List of diseases starting with F - Fet, List of diseases starting with F - Fg, List of diseases starting with F - Fi, List of diseases starting with F - Fib-Fil, List of diseases starting with F - Fin-Fit, List of diseases starting with F - Fl, List of diseases starting with F - Fo, List of diseases starting with F - Fr, List of diseases starting with F - Fra, List of diseases starting with F - Fre-Fri, List of diseases starting with F - Fro-Fru, List of diseases starting with F - Fry, List of diseases starting with F - Fu

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The Shroud of Turin (or Turin Shroud) is a linen cloth bearing the image of a man who appears to have been physically traumatized in a manner consistent with crucifixion. It is presently kept in the royal chapel of the Cathedral of Saint John the Baptist in Turin, Italy. Some believe it is the cloth that covered Jesus of Nazareth when he was placed in his tomb and that his image was somehow recorded on its fibers at or near the time of his imputed resurrection. Skeptics contend the shroud is a medieval hoax or forgery - or even ...

Including:

Shroud of Turin - General observations Shroud of Turin - History
Shroud of Turin - Possible history before the 14th century: The Image of Edessa Shroud of Turin - 14th century Shroud of Turin - 15th century Shroud of Turin - 16th century to present
Shroud of Turin - The controversy
Shroud of Turin - Theories of image formation Shroud of Turin - Second Image on back of cloth Shroud of Turin - Analyses of the Shroud Shroud of Turin - Textual criticism Shroud of Turin - Analysis of artistic style Shroud of Turin - Analysis of optical perspective
Shroud of Turin - The Shroud in the Catholic Church Shroud of Turin - Conclusions

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Crucifixion is an ancient method of execution, where the victim was tied or nailed to a large wooden cross (Latin: crux) and left to hang there until dead. It was a fairly common form of execution from the 6th century BC, especially among the Persians, Egyptians, Carthaginians, and Romans, until c. 313 AD, when Christianity became the dominant faith in Rome. Crucifixion has special significance in Christianity as Jesus was put to death by the Romans by being nailed to a cross. The cross or the crucifix has become the main Chris ...

Including:

Crucifixion - Details of crucifixion
Crucifixion - Cross shape
Crucifixion - Location of the nails
Crucifixion - Cause of death
Crucifixion - Archeological evidence for ancient crucifixion Crucifixion - History of crucifixion
Crucifixion - Persia and Alexander Crucifixion - Roman Empire Crucifixion - Japan Crucifixion - Mesoamerica Crucifixion - Modern death on the cross
Crucifixion - Modern crucifixions without death
Crucifixion - Crucifixion as a devotional practice Crucifixion - Parody
Crucifixion - Famous crucifixions Crucifixion - Related topics

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In anatomy, the arm is the upper limb of a bipedal mammal, specifically the segment between the shoulder and the elbow. Arm can also refer to any analogous structure, such as one of the paired forelimbs of a quadruped, or any muscular hydrostat similar to a tentacle, as seen on some cephalopods, such as octopuses. The term arm also refers to the entire upper limb in an organism. Anatomically, the segment between the elbow and wrist is properly called the forearm. In primates the arms are richly adapted for ...

Including:

Arm - Anatomy of the human arm
Arm - Bony structure and joints Arm - Osteofascial compartments Arm - Cubital fossa Arm - Nervous supply Arm - Blood supply and venous drainage

Read more here: » Arm: Encyclopedia - Arm