ClipArt ETC
An internal view of the ankle-joint: tarsal and tarsometatarsal articulations.

Ankle-joint

An internal view of the ankle-joint: tarsal and tarsometatarsal articulations.

An illustration of a beveled halving joint.

Beveled Halving

An illustration of a beveled halving joint.

Uniting the theories of partial polygons of resistance and centres and lines of resistance, this buttress of blocks illustrates the tangential curve that is the line of pressures.

Buttress of Blocks

Uniting the theories of partial polygons of resistance and centres and lines of resistance, this buttress…

A diagram of the relative position of the bone, cartilage, and synovial membrane. Labels: 1,The extremities of two bones to form a joint. 2, The cartilage that covers the end of the bone. 3, The synovial membrane, which covers the cartilage of both bones and is then doubled back from one to the other, represented by the dotted lines.

Position of the Bone, Cartilage, and Synovial Membranes

A diagram of the relative position of the bone, cartilage, and synovial membrane. Labels: 1,The extremities…

In Joinery, a common dovetail joint is the most efficient for joining two boards that meet at a right angle. The edges of each board are cut into a series of alternate projections and indentations, which fit into each other, and which by the bevel of their sides prevent the boards from drawing apart.

Common Dovetail Joint

In Joinery, a common dovetail joint is the most efficient for joining two boards that meet at a right…

"Corn Fly (Chlorops taeniopus): a, a portion of a culm or stem of wheat with swollen joint, caused by larva of corn fly; b, larva; c, pupa; d, fly, natural size; c, fly, magnified." — Chambers' Encyclopedia, 1875

Corn Fly

"Corn Fly (Chlorops taeniopus): a, a portion of a culm or stem of wheat with swollen joint, caused by…

A coupling is a device used to connect two shafts together at their ends for the purpose of transmitting power. Couplings do not normally allow disconnection of shafts during operation, though there do exist torque limiting couplings which can slip or disconnect when some torque limit is exceeded.

Electrical Coupling

A coupling is a device used to connect two shafts together at their ends for the purpose of transmitting…

"The superficial veins in front of the elbow-joint. B', tendon of biceps muscle; Bi, brachialis internus muscle; Pt, pronator teres muscle; 1, median nerve; 2, 3, 4, nerve-branches to the skin; B, brachial artery, with its small accompanying veins; cep, cephalic vein; bas, basilic vein; m', median vein; *, junction of a deep-lying vein with the cephalic." —Martin, 1917

Elbow-Joint

"The superficial veins in front of the elbow-joint. B', tendon of biceps muscle; Bi, brachialis internus…

A jointed or flexible device that allows the turning or pivoting of a part, such as a door or lid, on a stationary frame.

Door Hinge

A jointed or flexible device that allows the turning or pivoting of a part, such as a door or lid, on…

Ligaments and bones of the hip joint and pelvis. Labels: 1, posterior sacro-iliac ligament; 2, greater sacro sciatic ligament; 3, lesser sacro-sciatic ligament; 4, greater sacro-sciatic notch; 5, lesser sacro-sciatic notch; 6, cotyloid ligament around the acetabulum; 7, ligamentum teres; 8, line of attachment of the capsular ligament of the hip-joint, posteriorly; 9, obturator ligament.

Bones and Ligaments of the Hip and Pelvis

Ligaments and bones of the hip joint and pelvis. Labels: 1, posterior sacro-iliac ligament; 2, greater…

A frontal section through the left hip joint of a boy. Front view.

Frontal Section Through Hip Joint

A frontal section through the left hip joint of a boy. Front view.

"The bones are fastened together, kept in place, and their movements limited, by tough and strong bands, or straps called <em>ligaments</em>, from a word meaning to bind." — Blaisedell, 1904

Powerful Ligament at the Hip Joint

"The bones are fastened together, kept in place, and their movements limited, by tough and strong bands,…

A joint between two bones (a and b). The ends of all bones are tipped with cartilage so that they may move easily upon each other. And besides this, the ends are lined with a very fine membrane, so arranged as to make a closed sac (c).

Joint

A joint between two bones (a and b). The ends of all bones are tipped with cartilage so that they may…

A toothed, or dentated suture. This is one type of immovable articulation. It is found in the union of the cranial bones of the skull, such as the suture between the frontal and parietal bones.

Human Joint, Dentated Suture

A toothed, or dentated suture. This is one type of immovable articulation. It is found in the union…

Shown is a a diagram of a diarthrodial joint. In the diarthrodial group the extensive cavity has produced great interruption in the continuity of the uniting structures which originally existed between the bones forming such a joint.

Diarthrodial Joint

Shown is a a diagram of a diarthrodial joint. In the diarthrodial group the extensive cavity has produced…

In the diarthrodial group the extensive cavity has produced great interruption in the continuity of the uniting structures which originally existed between the bones forming such a joint. Shown is a a diagram of a diarthrodial joint with an interarticular meniscus dividing the joint cavity into two compartments.

Diarthrodial Joint

In the diarthrodial group the extensive cavity has produced great interruption in the continuity of…

An illustration of dovetail joint. A dovetail joint or simply dovetail is a joint technique most commonly used in woodworking joinery. Noted for its resistance to being pulled apart (tensile strength), the dovetail joint is commonly used to join for example the sides of a drawer to the front.

Dovetail Joint

An illustration of dovetail joint. A dovetail joint or simply dovetail is a joint technique most commonly…

"Showing how the Ends of the Bones are shaped to form the Elbow Joint. The cut ends of a few ligaments are seen." — Blaisedell, 1904

Elbow Joint

"Showing how the Ends of the Bones are shaped to form the Elbow Joint. The cut ends of a few ligaments…

An illustration of a halving joint.

Halving Joint

An illustration of a halving joint.

An illustration of a housing joint.

Housing Joint

An illustration of a housing joint.

A mixed articulation (slightly movable). In this form, the bony surfaces are usually joined together by broad, flattened disks of fibro-cartilage, as in the articulations between the bodies of the vertebrae. Labels: a, b, disk of fibro-cartilage; c, articular cartilage; d, bone.

Human Joint, Mixed Articulation

A mixed articulation (slightly movable). In this form, the bony surfaces are usually joined together…

Fastening designed to unite abutting ends of rail.

Rail Joint

Fastening designed to unite abutting ends of rail.

This illustration shows a section on the knee (A, Femur; B, Tibia; C, Patella; D, Synovial sac; E, bursæ). The knee is a hinge-joint, and the bones entering into its formation are the lower end of the femur, the upper end of the tibia, and the posterior surface of the patella (knee-cap).

Section of the Knee

This illustration shows a section on the knee (A, Femur; B, Tibia; C, Patella; D, Synovial sac; E, bursæ).…

An anterior view of the right knee-joint.

Knee-joint

An anterior view of the right knee-joint.

An posterior view of the right knee-joint.

Knee-joint

An posterior view of the right knee-joint.

The right knee-joint showing interior ligaments.

Knee-joint

The right knee-joint showing interior ligaments.

A Lap Dovetail Joint is a type of dovetail joint in joinery.

Lap Dovetail Joint

A Lap Dovetail Joint is a type of dovetail joint in joinery.

A mortise and tenon joint is a type of joint in the art of Joinery. These joints are commonly used in forming framework, the tenon (projecting piece) fitting tightly into the the mortise (hole), and then glued in place.

Mortise and Tenon Joint

A mortise and tenon joint is a type of joint in the art of Joinery. These joints are commonly used in…

"Diagram illustrating the muscles (drawn in thick black lines) which pass before and behind the joints and by their balanced activity keep the joints rigid and the body erect." &mdash;Martin, 1917

Muscle Diagram

"Diagram illustrating the muscles (drawn in thick black lines) which pass before and behind the joints…

An instrument for making a reduced, enlarged, or exact copy of a plane figure

Pantograph

An instrument for making a reduced, enlarged, or exact copy of a plane figure

A style of joint employed in the art of Joinery (the making and fitting of the interior wood-work of a building).

Ploughed and Tongued Joint

A style of joint employed in the art of Joinery (the making and fitting of the interior wood-work of…

A rattlesnake's rattle, with twenty-four joints.

Rattlensnake rattle

A rattlesnake's rattle, with twenty-four joints.

"A joint involving the principle of the shackle. Specifically, in anatomy, a kind of articulation found in the exoskeleton of some fishes, formed by the passing of a bony ring of one part through a perforation of another part, the two being thus movably linked together." &mdash;Whitney, 1889 <p>This illustration shows the shackle joint of a large spine with a bony plate of the skin of a siluroid fish.

Shackle Joint from the Exoskeleton of a Siluroid Fish

"A joint involving the principle of the shackle. Specifically, in anatomy, a kind of articulation found…

The left shoulder-joint, scapuloclavicular articulations, and proper ligaments of the scapula.

Shoulder

The left shoulder-joint, scapuloclavicular articulations, and proper ligaments of the scapula.

Ligaments of the acromio-clavicular and scapulo-humeral articulations (joints of the shoulder). Labels: 1, superior acromio-clavicular ligament; 2, caraco-clavicular ligament; 3, coraco-acromial ligament; 4, caracoid ligament; 5, capsular ligament of the shoulder joint; 6, ligamentum adscititium, or coraco-humeral ligament; 7, tendon of long head of the biceps muscle.

Bones and Ligaments of the Shoulder Articulation

Ligaments of the acromio-clavicular and scapulo-humeral articulations (joints of the shoulder). Labels:…

Diagram of articular synovial membranes. The cartilages are represented as drawn apart for the sake of clearness. The synovial membrane is shown by a broken line.

Synovial Membrane

Diagram of articular synovial membranes. The cartilages are represented as drawn apart for the sake…

An illustration of tusk tenon.

Tusk Tenon

An illustration of tusk tenon.