click below
click below
Normal Size Small Size show me how
Skeletal Vocab.
Skeletal system vocabulary.
Question | Answer |
---|---|
Skeletal system | is made of organs called bones |
diaphysis | the two exrtremities or ends are each called epiphysis |
qmedullary canal | is a cavity in the diaphysis |
yellow marrow | fat cells |
endosteum | is a membrane that lines medullary canal and keeps the yellow marrow intact |
red marrow | is found in certain bones such as the vertebrae,ribs,sternum,and in the proximal ends of the humerus and femur |
periosteum | which contains blood vessals,lymph vessels and osteoblasts,special cells that form new bone tissue. |
Axial skeleton | form the main trunk of the body and is composed of the skull,spinal column,ribs,and breastbone. |
appendicular skeleton | forms the extremites and is composed of the shoulder girdle,arm bones,pelvic girdle,and leg bones. |
Cranium | is the spnerical structure that surrounds and protects the brain |
fontaneis | or "soft spots",allow for the enlargement of the skull as brain growth occurs. |
sutures | are areas where the cranial bones have joined together |
sinuses | are air spaces in the bones of the skull that act as resonating chambers for the voice. |
foramina | are openings in bones that allow nerves and blood vessels to enter or leave the bones. |
Vertebrae | the spinal column is made up of 26 bones |
ribs | costae |
sternum | breastbone is the last bone of the axial skeleton |
clavicles and scapulas | the shoulder of pectoral girdle is made of two clavicles(collarbones) and two scapulas(shoulder bones) |
humerus | bones of each arm include one humeruos |
radium | (lower arm on thumb side) |
ulna | large bone of lower arm with as projecxtion called the olecranon process at its upper end forming the elbow) |
Carpals | arm has eight (wrist) |
Mertacarpals | five (palm of the hand) |
phalanges | fourteen(fingers) |
oscoxae | pelvic girdle is made of two (coxal or hip, bones) |
Femur | leg has one(thigh) |
patella | one (knee cap) |
tibia | one |
fibula | lower leg |
metatarsals | (instep of foot)(five) |
phalanges | fourteen (toes) |
joints | are areas where two or more bones join together |
ligaments | help hols long bones together at joints |