Exam 2 Flashcards
What are the tissue & organs involved in the skeletal system?
cartilage,ligaments, & tendons
What is cartilage?
The embryonic forerunner of most bones and covers many joint surfaces.
What are ligaments?
Bone to Bone
What are tendons?
Muscles to Bone
What are the functions of the skeletal system?
Support Movement Protection Blood Formation Electrolyte & Acid-Base balance Detoxification
How many bones do we have at birth & as an adult?
270 @ birth
206 as an adult
How are seasmoid bones formed?
within the tendons due to stress.
What are sutural (wormian) bones?
Extra bones in the skull.
They’re not found in everyone.
What is the axial skeleton, what does it consists of?
The central supporting axis of the body. Consists of: Skull, Vertebral column, Thoracic cage
What is the appendicular skeleton?
The upper and lower limbs, pectoral & pelvic girdle
What are the different bone shapes?
Flat
Long
Short
Irregular
What is osteology?
The study of bone
What is bone?
Connective tissue w/ a head matrix
What is mineralization?
the process of hardening.
What are the other tissue is present in bone?
Blood Bone marrow Adipose Tissue Nervous Tissue Fibrous Connective tissue Cartilage
Where is soft tissue located?
Marrow cavites in long bones
Spaces of spongy bones
Large central canals
Osteons
Where is YBM & RBM located?
Skull Vertebrae Sternum RIbs Proximal heads of humerus & femur ------------------------- Long bones of limbs
What is ossification?
Bone formation that begins with mesenchyme.
What is mesenchyme?
Embryonic connective tissue
What is bone elongation?
When bones grow longer @the epiphyseal line.
What are epiphyseal plates made off?
Hyaline cartilage & metaphysis.
What is the function of the metaphysis?
Transfer loads from weight-bearing joint surface to the diaphysis.
What is appositional growth?
Growth in diameter & thickness.
What is Wolff’s law of bone?
Bone shape is determined by mechanical stress.
Bone adapts to withstand stress.
Form follows function.
What is osteopenia?
Loss of bone