"In armor, the devices, more or less elaborate according to according to the period, etc., serving to protect the shoulder, or to connect breastplate and backpiece at the shoulder. e, Épaulière, about 1425." -Whitney, 1911

Épaulière

"In armor, the devices, more or less elaborate according to according to the period, etc., serving to…

Wrapped arm.

A wrapped arm

Wrapped arm.

"The vertical or supporting beam of the A. is the shank, B; at the upper end of it is the ring, r; and just below the ring is a transverse piece called the stock, s s; the other extremity is the crown, c, from which branch out two arms or blades, g, in directions nearly at right angles to that of the stock; each arm spreads out into a broad palm or fluke, h, the sharp extremity of which is the peak or bill, k." — Chambers' Encyclopedia, 1875

Anchor

"The vertical or supporting beam of the A. is the shank, B; at the upper end of it is the ring, r; and…

Arm.

Arm

Arm.

Arm.

Arm

Arm.

Section passes through the right upper arm one inch above the epicondyles.

Cross Section Through Upper Arm above Epicondyles

Section passes through the right upper arm one inch above the epicondyles.

The skeleton of the arm and leg. Labels: H, the humerus; Cd, its articular head which fits into the glenoid fossa of the scapula; U, the ulna; R, the radius; O, the olecranon; Fe, the femur; P, the patella; Fi, the fibula; T, the tibia.

Arm and Leg Skeleton

The skeleton of the arm and leg. Labels: H, the humerus; Cd, its articular head which fits into the…

Veins of the upper extremity . Labels: 1, axillary artery; 2, axillary veins; 3, 4, basilic; 5, point where median basilic joins basilic; 6, posterior basilic vein; 8, anterior basilic vein; 9, point where cephalic enters axillary; 10, portion same vein; 11, point where median cephalic enters cephalic; 12, lower portion cephalic vein; 13, median cephalic vein; 14, median vein; 15, anastromosing branch; 16, cephalica-pollicis veins; 17, veins of fingers; 18, palmar veins.

Veins of the Arm and Shoulder

Veins of the upper extremity . Labels: 1, axillary artery; 2, axillary veins; 3, 4, basilic; 5, point…

Muscles of the thorax and front of the arm.

Muscles of the Arm and Thorax

Muscles of the thorax and front of the arm.

Muscles of the thorax and front of the arm, showing some of the boundaries of the axilla.

Muscles of the Arm and Thorax

Muscles of the thorax and front of the arm, showing some of the boundaries of the axilla.

This illustration shows a method of applying a bandage to the arm.

Arm Bandage

This illustration shows a method of applying a bandage to the arm.

This illustration shows a method of applying a bandage to the arm.

Arm Bandage

This illustration shows a method of applying a bandage to the arm.

This illustration shows a method of applying a bandage to the arm.

Arm Bandage

This illustration shows a method of applying a bandage to the arm.

This illustration shows a method of applying a bandage to the arm.

Arm Bandage

This illustration shows a method of applying a bandage to the arm.

This illustration shows a method of applying a bandage to the arm.

Arm Bandage

This illustration shows a method of applying a bandage to the arm.

Section through right upper arm immediately below axilla.

Cross Section Through Arm below Axilla

Section through right upper arm immediately below axilla.

Section through upper third of arm, immediately below the insertion of the deltoid.

Cross Section Through Arm below Insertion of Deltoid

Section through upper third of arm, immediately below the insertion of the deltoid.

"The bones of the arm. a, humerus; b, ulna; c, radius; d, the carpus; e, the fifth metacarpal; f, the three phalanges of the fifth digit (little finger)." —Martin, 1917

Arm Bones

"The bones of the arm. a, humerus; b, ulna; c, radius; d, the carpus; e, the fifth metacarpal; f, the…

Demonstration of the movement of a pivot joint. Labels: A, arm in supination (palm uppermost); B, arm in pronation (back of hand upward). H, humerus; R, radius; U, ulna.

Arm Bones

Demonstration of the movement of a pivot joint. Labels: A, arm in supination (palm uppermost); B, arm…

"abc, deltoid muscle; d, coraco branchfalls muacle; r, r, triceps; e, i, extensors of wrist and long supinator of the hand; km, flexor of fingers and radial and ulnar sides of the wrist, and l, palm of the hand, or palmaris longus; p, palmaris brevis; q, palmar fascia; o, biceps." — Chambers' Encyclopedia, 1875

Arm Muscles

"abc, deltoid muscle; d, coraco branchfalls muacle; r, r, triceps; e, i, extensors of wrist and long…

The muscles on the back of the hand, forearm, and lower half of the arm, as exposed on dissecting away the skin.

Arm Muscles

The muscles on the back of the hand, forearm, and lower half of the arm, as exposed on dissecting away…

Diagram of the muscles of the arm in action. Labels: 1, humerus; 2, ulna, 3, biceps muscle; 4, attachment to the humerus; 6, triceps muscle; 7, tendon; 8, a ball to be moved. 9, 10, 11, direction the ulna moves when the biceps muscle contracts. When the triceps muscle contracts, the forearm extends.

Arm Muscles in Action

Diagram of the muscles of the arm in action. Labels: 1, humerus; 2, ulna, 3, biceps muscle; 4, attachment…

Front of the left forearm showing deep muscles.

Front View of Arm Muscles

Front of the left forearm showing deep muscles.

Section through right elbow joint.

Cross Section of Arm Through Elbow Joint

Section through right elbow joint.

Section through the epicondyles of the right humerus.

Cross Section of Arm Through Epicondyles

Section through the epicondyles of the right humerus.

Section passes through the musculospiral nerve (N. radialis) as it runs behind the humerus.

Cross Section of Arm Through Musculospiral Nerve

Section passes through the musculospiral nerve (N. radialis) as it runs behind the humerus.

"Azure, a dexter arm vambraced couped, the fist clenched proper. CLENCHED. The fingers pressed towards the palm of the hand." -Hall, 1862

Arm with Fist Clenched

"Azure, a dexter arm vambraced couped, the fist clenched proper. CLENCHED. The fingers pressed towards…

Arteries of the arm. Labels: 1, axillary artery; 2, thoracica acromialis; 3, superior thoracic; 4, subcapular; 5, inferior scapular; 6, 7, branches to the teres and subscapularis; 8, anterior circumflex; 9, brachial; 10, profunda; 11, posterior circumflex; 12, profunda; 13, muscular branches; 14, branches to brachialis interus; 15, recurrent ulnar.

Arteries of the Arm

Arteries of the arm. Labels: 1, axillary artery; 2, thoracica acromialis; 3, superior thoracic; 4, subcapular;…

Wing of Bird; h Humerus or bone of upper arm; r and u Radius and Ulna, or bones of the forearm; c Carpus, or bones of the wrist; m Metacarpus, or bones of the root of the hand; p Phalanges, or bones of the fingers.

bones of arm

Wing of Bird; h Humerus or bone of upper arm; r and u Radius and Ulna, or bones of the forearm; c Carpus,…

Arm of humans; h Humerus or bone of upper arm; r and u Radius and Ulna, or bones of the forearm; c Carpus, or bones of the wrist; m Metacarpus, or bones of the root of the hand; p Phalanges, or bones of the fingers.

Bones of Arm

Arm of humans; h Humerus or bone of upper arm; r and u Radius and Ulna, or bones of the forearm; c Carpus,…

Section through the lower third of the upper arm.

Cross Section Through Lower Third of the Upper Arm

Section through the lower third of the upper arm.

Section through the middle thirds of the upper arm.

Cross Section Through Middle Thirds of the Upper Arm

Section through the middle thirds of the upper arm.

Section through the middle of the right upper arm.

Cross Section Through Middle Upper Arm

Section through the middle of the right upper arm.

A firearm design where a sliding charger is positioned under the barrel, allowing for faster reloading times.

Fire Arm

A firearm design where a sliding charger is positioned under the barrel, allowing for faster reloading…

Shows the muscles and tendons of the arm.

Muscle structure of the arm

Shows the muscles and tendons of the arm.

The posterior all of the axilla and the front of the arm (biceps being divided).

Muscles and Nerves of the Arm

The posterior all of the axilla and the front of the arm (biceps being divided).

Muscles of the back of the hand and arm with their tendons.

Muscles and Tendons of the Arm

Muscles of the back of the hand and arm with their tendons.

Front of the left forearm showing superficial muscles.

Superficial Muscles of the Arm

Front of the left forearm showing superficial muscles.

Transverse section through the middle of the right forearm, in the position of semipronation.

Transverse Section Through Arm

Transverse section through the middle of the right forearm, in the position of semipronation.

Transverse section through the middle of the arm.

Transverse Section Through the Arm

Transverse section through the middle of the arm.

Superficial veins of the upper extremity (arm). Labels: 1, axillary artery; 2, axillary veins; 3, basilic vein; 5, point where the median basilic joins the basilic vein; 9, point where the cephalic enters the axillary vein; 11, point where the median cephalic centers the cephalic vein; 12, lower portion of the cephalic vein; 14, median vein; 15, anastomosing branch; 16, cephalicapellicis vein; 17, subcutaneous veins of the fingers; 18, subcutaneous palmar veins.

Veins of the Arm

Superficial veins of the upper extremity (arm). Labels: 1, axillary artery; 2, axillary veins; 3, basilic…

Showing relations of the muscles and bones of the arms from the inner side.

Bones and Muscles of the Arms

Showing relations of the muscles and bones of the arms from the inner side.

Showing relations of the muscles and bones of the arms from the outer side

Bones and Muscles of the Arms

Showing relations of the muscles and bones of the arms from the outer side

"The Right Axillary and Branchial Arteries, with Some of their Main Branches." — Blaisedell, 1904

Arteries

"The Right Axillary and Branchial Arteries, with Some of their Main Branches." — Blaisedell, 1904

"Showing how firm pressure may be made with the fingers to compress the branchial artery of the left arm. Some large superficial veins are also shown." — Blaisedell, 1904

Branchial artery

"Showing how firm pressure may be made with the fingers to compress the branchial artery of the left…

"The dotted line shows the course of the branchial artery." — Blaisedell, 1904

Brancial artery

"The dotted line shows the course of the branchial artery." — Blaisedell, 1904

"Raise both arms laterally until horizontal; swing both simultaneously upward until vertical and return to the horizontal; repeat several times." — Moss, 1914

As skirmishers, guide center, march

"Raise both arms laterally until horizontal; swing both simultaneously upward until vertical and return…

"Raise both arms laterally until horizontal; hold the arm on the side of the guide steadily in the horizontal position; swing the other upward until vertical and return it to the horizontal; repeat several times." — Moss, 1914

As skirmishers, guide right (left), march

"Raise both arms laterally until horizontal; hold the arm on the side of the guide steadily in the horizontal…

"Raise both arms laterally until horizontal." — Moss, 1914

As skirmishers, march

"Raise both arms laterally until horizontal." — Moss, 1914

"Raise the arm vertically to its full extent and describe horizontal circles." — Moss, 1914

Assemble, march

"Raise the arm vertically to its full extent and describe horizontal circles." — Moss, 1914

"Some of the Larger Muscles on the Back of the Shoulder and the Arm." — Blaisedell, 1904

Muscles of the back and shoulder

"Some of the Larger Muscles on the Back of the Shoulder and the Arm." — Blaisedell, 1904

A hand, with a bandage wound around the wrist.

Bandaged hand

A hand, with a bandage wound around the wrist.

Biceps muscle attached to the radius.

Biceps Muscle and Radius

Biceps muscle attached to the radius.

A diagram showing the muscular cycle form by the biceps or flexor muscle, and the triceps or extensor muscle of the human arm.

Muscular Cycle of the Biceps

A diagram showing the muscular cycle form by the biceps or flexor muscle, and the triceps or extensor…

Two hand binding an injury on an arm with a bandage.

Binding

Two hand binding an injury on an arm with a bandage.

"Shows how the bones of the arm (a), forearm (b), and hand (c), are twisted, and form a conical screw."—Pettigrew, 1874

Wing of Bird

"Shows how the bones of the arm (a), forearm (b), and hand (c), are twisted, and form a conical screw."—Pettigrew,…

"The Arms of Bishopric." — Encyclopedia Britannica, 1893

Bishopric

"The Arms of Bishopric." — Encyclopedia Britannica, 1893

The Arm of Boston, the parliamentary and municipal borough and seaport town in England.

Boston

The Arm of Boston, the parliamentary and municipal borough and seaport town in England.

A young boy twirling his arms in the air.

Boy Twirling Arms

A young boy twirling his arms in the air.

"In bleeding from any part of the arm or hand the branchial artery should be pressed outwards against the bone jujst behind the inner border of the larger muscle of the arm." — Moss, 1914

Branchial compression

"In bleeding from any part of the arm or hand the branchial artery should be pressed outwards against…