Page 226 - Ultimate Visual Dictionary (DK)

THE HUMAN BODY

Bones and LIGAMENTS SURROUNDING HIP JOINT

joints Iliac Iliac fossa
crest

Pubofemoral
BONES FORM the body’s hard, strong ligament
skeletal framework. Each bone has a
hard, compact exterior surrounding Iliac
a spongy, lighter interior. The long spine
bones of the arms and legs, such as
the femur (thigh bone), have a central
cavity containing bone marrow. Bones Obturator
canal
are composed chiefly of calcium,
Greater trochanter
phosphorus, and a fibrous substance of femur Superior
known as collagen. Bones meet at joints, ramus of
pubis
which are of several different types. For Iliofemoral
example, the hip is a ball-and-socket ligament
joint that allows the femur a wide range
of movement, whereas finger joints are Body
simple hinge joints that allow only of
Intertrochanteric pubis
bending and straightening. Joints are
line
held in place by bands of tissue called
ligaments. Movement of joints is Lesser trochanter Obturator
of femur membrane
facilitated by the smooth hyaline
cartilage that covers the bone ends
and by the synovial membrane that Ischial tuberosity
lines and lubricates the joint.
Femur
Ischium

SECTION THROUGH LEFT FEMUR

Greater
trochanter
Medullary cavity
Shaft

Cancellous
(spongy) bone

Head
Lesser
trochanter Compact bone
Neck
Fovea

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