( «r )
!ate<l, which occupies the medullary cavity ; the spongi/,
which forms the extremities; and the compact, of which
the sides of the body of the bone are formed.
THE LEG.
The leg is that part of the lower extremity between tha
femur and foot. It consists of three bones ; the tibia,fibula y
and patella.
TIBIA.
The tibia is a long, thick, triangular, and cylindrical bone,
much the thickest at its upper extremity, placed between the
femur and tarsus in the anterior and inside of the leg.
Eminences. The. upper head of the tibia, which is the.
largest part, formed at the top into two rather concave sur-
faces, and divided by an irregular protuberance, for its articu-
lation with the condyles of the femur. The tuberosity of the
tibia, to which the great ligament of the patella is fixed. The
body of the tibia is triangular, and smaller than its extremi-
ties :. of its three surfaces, the external is slightly hollowed by
muscles; the internal is broad and flat, and the posterior is
the narrowest, and nearly cylindrical. The anterior ridge, or
angle of the tibia, is called the spine, or shin, and the external
gives attachment to the interosseous ligament. At the lower
head of the tibia there is a considerable process, wliich forms
the inner ankle.
Cavities. Two articular sinuses, in the upper head, for the
reception of the condyles of the femur ; an articular car.ity, at
the side of the head, for the reception of the fibula. A deep
cavity at the lower extremity of the bone, which receives the
astragalus of the tarsus; a foramen for the entrance of the
medullary vessels, situated at the back of *4ie bone, a little
above its middle; a surface at each extremity on the outer
side, for the articulation ef the fibuia.
!ate<l, which occupies the medullary cavity ; the spongi/,
which forms the extremities; and the compact, of which
the sides of the body of the bone are formed.
THE LEG.
The leg is that part of the lower extremity between tha
femur and foot. It consists of three bones ; the tibia,fibula y
and patella.
TIBIA.
The tibia is a long, thick, triangular, and cylindrical bone,
much the thickest at its upper extremity, placed between the
femur and tarsus in the anterior and inside of the leg.
Eminences. The. upper head of the tibia, which is the.
largest part, formed at the top into two rather concave sur-
faces, and divided by an irregular protuberance, for its articu-
lation with the condyles of the femur. The tuberosity of the
tibia, to which the great ligament of the patella is fixed. The
body of the tibia is triangular, and smaller than its extremi-
ties :. of its three surfaces, the external is slightly hollowed by
muscles; the internal is broad and flat, and the posterior is
the narrowest, and nearly cylindrical. The anterior ridge, or
angle of the tibia, is called the spine, or shin, and the external
gives attachment to the interosseous ligament. At the lower
head of the tibia there is a considerable process, wliich forms
the inner ankle.
Cavities. Two articular sinuses, in the upper head, for the
reception of the condyles of the femur ; an articular car.ity, at
the side of the head, for the reception of the fibula. A deep
cavity at the lower extremity of the bone, which receives the
astragalus of the tarsus; a foramen for the entrance of the
medullary vessels, situated at the back of *4ie bone, a little
above its middle; a surface at each extremity on the outer
side, for the articulation ef the fibuia.