click below
click below
Normal Size Small Size show me how
Joints & bones
Joints and bones
Question | Answer |
---|---|
Types of Bones | Long Short Irregular Flat |
important functions of bones | Support - provides framework Protection - encloses cavities Movement - using skeletal muscles Mineral storage - reservior for minerals calcuim and PhospatesBlood cell formation - marrow of bones |
Joints by structure | Fibrous Cartilaginous Synovial |
Joints by Function | Synathoraic - Immovable Ampiathoraic - Slightly movable Diarathroaic - Freely movable |
Cartilaginous joints | United by cartilage Some movement No cavity |
Fibrous Joints | United by fibrous tissue No Cavity No Movement |
Types of joints | Plane - top of hand Hindge - Elbow Pivot - Ulna and Radisus moving side to side Condylid - wrist joints Saddle - thumb Ball and Socket - shoulder |
Movements Allowed by synovial Joints | Abduction/ Adduction rotation Supination/Pronation Elevation/ Depression |
Structural Features of Synovial Joints | Articular Cartilage Articular capsual- Fibrous Capsual/SynovialMembrane Joint cavity - synovial fuid Reinforcing ligaments |
3 Factors that assist stabilisation of Synovial Joints | Articular surfaces Muscle tone Ligaments |
Function of ligaments | Stabilise joint scan stretch but snap help direct bone movement |
What is the epipyseal line | where the bone grows |
Middle part of the long bone called | diaphysis |
top end of the long bone called | Epiphysis |
type of bone is inside the long bone | Spongy bone with red marrow |
Type of bone is on the outside | compact Bone |
What is the middle of long bone called | Medullary cavity with yellow marrow |
What covers the outside of a bone | periosteum |
What covers the end of a long bone | articular cartlidge |