Page 11 - Prueba

9 The skeletal system

GLOSSARY The muscular system acts on the skeletal system, by using the joints.

fused: something that is combined
Ligaments and tendons
Skeletal
muscle Muscular contraction moves bones at
joints. Tendons connect bone to muscle,
and ligaments connect bone to bone.

JOINTS
Tendon
A joint is where two or more bones
Frontal bone Parietal bone meet. They serve to connect the
Temporal bone bones, and most of them also allow
Occipital for movement. There are three types
Maxilla of joints: synovial, cartilaginous
Mandible and fixed.
Clavicle

Synovial (moves freely). They are the
Scapula
Sternum most numerous. They allow movement.

Humerus

Ribs
Vertebrae
Sacrum

Radius
Ilium
Coxal Ulna
bone Pubis Cartilaginous (moves partially). They
are found between bones that are kept
Ischium Carpals
together by cartilage and allow limited
movement.

Metacarpals

Coccyx
Phalanges

Femur
Patella
Fixed (cannot move). These are joints
in which the bones are fused together
with fibrous connective tissue.

Tibia Sutures

Fibula

Tarsals
Metatarsals
Phalanges

70 UNIT 6