SKELETAL SYSTEM Flashcards
WHAT ARE THE 4 COMPONENTS OF THE SKELETAL SYSTEM
bones
cartilage
joints
ligaments
HOW MANY BONES IN THE AVEAGE EADULT HUMAN BODY
206
WHAT ARE THE TWO REGIONS OF THE SKELETON
AXIAL AND APPENDICULAR
WHAT MAKES UP THE AXIAL SKELETON
the head, spinal column and trunk
WHAT MAKES UP THE APPENDICULAR SKELETON
the upper and lower limbs
WHAT ARE THE 5 TYPES OF BONES
long, short, sesamoid, flat, irregular
DESCRIBE THE SHAPE OF A LONG BONE
longer than they are wide
have a long shaft
DESCRIBE THE SHAPE OF SHORT BONES
spherical or cube shaped bones
DESCRIBE THE FEATURES OF A SESAMOID BONE
forms with a tendon
DESCRIBE THE SHAPE OF A FLAT BONE
thin, flat, slightly curved
DESCRIBE THE SHAPE OF AN IRREGULAR BONE
complicated shape - cannot be classified into another category
DESCRIBE THE MATRIX OF BONE
mineralised
WHAT ARE THE TWO WAYS THAT BONE TISSUE CAN BE CLASSIFIED
compact
spongy
WHAT FORMS THE OUTER MOST LAYER OF BONES EXCEPT FOR WHERE ARTICULAR CARTILAGE IS FOUND
periosteum
WHAT ARE THE MAIN FUNCTIONS OF BONE (SSAPP)
support storage (minerals, fat) anchorage production (hormones, blood cells) protection
WHAT DOES AN OSTEOBLAST DO
Build bone tissue by secreting unmineralised bone matrix and then playing a role in calcification
WHAT DOES AN OSTEOCLAST DO
consume bone tissue so that it can be maintained and healed
WHAT DOES AN OSTEOPROGENITOR CELL DO
it is a stem cell which can differentiate into osteoblasts
WHAT IS COMPACT BONE FORMED BY
cylindrical functional units called osteons
WHAT IS SPONGY BONE FORMED BY
traberculae and marrow spaces
WHAT DO OSTEONS CONTAIN
central canal
lamella
canaliculi
lacunae
WHAT ARE THE THREE JOINT CLASSIFICATIONS
fibrous
cartilaginous
synovial
