According to Proclus an angle must be either a quality or a quantity, or a relationship. The first concept was utilized by Eudemus, who regarded an angle as a deviation from a straight line; the second by Carpus of Antioch, who regarded it as the interval or space between the intersecting lines; Euclid adopted the third concept, although his definitions of right, acute, and obtuse angles are certainly quantitative.
Carpus with two separate bones.
Carpus and Tarsus, II.
Morse, " On the Carpus and Tarsus of Birds," Ann.
In the carpus the scaphoid and lunar bones are united.
Its elastic tendon runs directly to the carpus, forming thereby the outer margin of the anterior patagium, or fold of skin between the upper and forearm, which it serves to extend, together with the propatagialis brevis muscle.
All the bones of the limbs are separate, and those of the carpus and tarsus do not alternate; that is to say, each one in the upper row is placed immediately above the corresponding one in the row below.
In none of the existing, and in but few of the extinct types, are collar-bones, or clavicles, developed; and the scaphoid and lunar bones of the carpus are separate.
The os magnum 1, lunar; sc, scaphoid; u, unciform; of the carpus articulates freely m, magnum; td, trapezoid; tm, with the scaphoid.
extending from the carpus or tarsus to the digit.
In others the wings are armed with a tubercle or even a sharp spur on the carpus.
He was the husband of Chloris, the goddess of flowers, by whom he had a son, Carpus, the god of fruit (Ovid, Fasti, v.
The humerus often has a foramen (entepicondylar) on the inner side of its lower end; the tibia and fibula may be separate or united; but the scaphoid and lunar of the carpus are also united, while the centrale is free.
The third and last sub-family, the Pteromyinae, is distinguished from the other two by the presence of a parachute-like fold of skin along the sides of the body, the supporting cartilage of which arises from the carpus or wrist.
In the carpus the scaphoid and lunar are welded, but the centrale remains distinct.
In the Bathyergoidea the scaphoid and lunar of the carpus are separate, the tibia and fibula united and the clavicles normal.
The carpus has a distinct os centrale.
It is now possible to define the suborder Hyracoidea as including ungulates with a centrale in the carpus, plantigrade feet, in which the first and fifth toes are reduced in greater or less degree, and clavicles and a foramen in the lower end of the humerus are absent.
The trapezoid and magnum of the carpus, and the cuboid and navicular of the tarsus are distinct.
- The horse (Equus caballus) is distinguished from the others by the long hairs of the tail being more abundant and growing quite or nearly from the base as well as the end and sides, and also by possessing a small bare callosity on the inner side of the hind leg, just below the "hock" or heel joint, in addition to the one on the inner side of the fore-arm above the carpus or " knee," common to all the genus.
The three bones of the first row of the carpus (scaphoid, lunar and cuneiform) are subequal in size.
The carpus, which remains cartilaginous in many of the Stegocephalia and Caudata, contains six to eight elements when the manus is fully developed, whilst the number is reduced in those forms which have only two or three digits.
One dog was observed to have an infected carpus and elbow and appeared to have a very painful fracture.
carpus is particularly true when the extensor carpi ulnaris blocks reduction.
The parachute is supported by a cartilage attached to the wrist or carpus; in addition to the lateral membrane, there is a narrow one from the cheek along the front of each shoulder to the wrist, and in the larger species a third (interfemoral) connecting the hind-limbs with the base of the long tail.
In the great majority of the Subungulata the bones of the upper and lower rows of the wrist-joint, or carpus, retain the primitive or more typical relation to each other (see fig., and contrast with Perissodactyla, fig.
The carpus has a radial tilt with volar subluxation.
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