Term
|
Definition
| rigid elements of the skeleton meet at joints or articulations |
|
|
Term
| What does the greek root "arthro" mean? |
|
Definition
|
|
Term
|
Definition
Bone to bone
bone to cartilage
teeth in bone sockets |
|
|
Term
| What does the structure of joints tell about its function? |
|
Definition
| enables resistance to crushing, tearing, and other forces. |
|
|
Term
| How can joints be classified? |
|
Definition
|
|
Term
| What are immovable joints that are common in the axial skeleton called? |
|
Definition
|
|
Term
| What are sligtly movable joints that are common in axial skeleton called? |
|
Definition
|
|
Term
| What are freely movable joints that are common in the appendicular skeleton called? |
|
Definition
|
|
Term
| What are structural classification of joints based on? |
|
Definition
| the material that binds bones together and the presence or absence of a joint cavity |
|
|
Term
| structural classifications of joints include: |
|
Definition
| fibrous, cartilaginous, synovial |
|
|
Term
|
Definition
| bones are connected by fibrous connective tissue |
|
|
Term
| Is there a joint cavity in fibrous joints? |
|
Definition
|
|
Term
| What is the movability of fibrous joints? |
|
Definition
| immovable or slightly movable |
|
|
Term
| What types of fibrous joints are there? |
|
Definition
|
|
Term
|
Definition
| bones that are tightly bound by a minimal amount of fibrous tissue |
|
|
Term
|
Definition
| only the bones of the skull |
|
|
Term
| What do sutures allow for? |
|
Definition
| bone growth so that the skull can expand with brain during childhood |
|
|
Term
| What happens to sutures during the middle ages? |
|
Definition
| fibrous tissue ossifies- closes the joint. |
|
|
Term
|
Definition
| bones are connected exclusively by ligaments |
|
|
Term
| What is the movability of syndesmoses? |
|
Definition
| amount of movement depends on length of fibers. |
|
|
Term
| WHat is an example of an immovable synarthrosis? |
|
Definition
|
|
Term
| What is an example of a freely movable diarthrosis? |
|
Definition
| interosseous membrane between radius and ulna, freely movable diarthrosis |
|
|
Term
| What are cartilaginous joints? |
|
Definition
| bones are united by cartilage |
|
|
Term
| Is there a joint cavity in cartilaginous joints? |
|
Definition
|
|
Term
| What are the types of cartilaginous joints? |
|
Definition
|
|
Term
|
Definition
| hyaline cartilage unites bones |
|
|
Term
| What is an example of the synchondroses? |
|
Definition
epiphyseal plates,
joint between first rib and manubrium |
|
|
Term
| what is the movability of synchondroses? |
|
Definition
|
|
Term
|
Definition
| fibrocartilage unites bones |
|
|
Term
| what does fibrocartilage resist? |
|
Definition
|
|
Term
| WHat is the movability of symphyses? |
|
Definition
| slightly movable joints that provide strength with flexibility |
|
|
Term
| What are examples of symphyses? |
|
Definition
intervertebral discs
pubic symphysis |
|
|
Term
| What is present in articular cartilage? |
|
Definition
|
|
Term
| WHat is the most movable type of joint? |
|
Definition
|
|
Term
| What are synovial joints? |
|
Definition
diarthroses- very flexible
contain a fluid filled joint cavity |
|
|
Term
| What components are there in synovial joints? |
|
Definition
5:
-articular cartilage
-joint capsule
-articular capsule
-synovial fluid
-supporting ligaments |
|
|
Term
| What is articular cartilage? |
|
Definition
ends of opposing bones are covered with hyaline cartilage
absorbs compression |
|
|
Term
| What are joint cavities (synovial cavity)? |
|
Definition
unique to synovial joints
cavity is a potential space that holds a small amount of fluid |
|
|
Term
| What are articular capsule? |
|
Definition
| joint cavity is enclosed in a two layered capsule |
|
|
Term
| two layers of articular capsule: |
|
Definition
fibrous capsule- dense irregular connective tissue- strengthens joint
synovial membrane- loose connective tissue for lining the joint capsule and covering internal joint surfaces. This functions to make synovial fluid |
|
|
Term
|
Definition
a viscous fluid similar to raw egg white
-filtrate of blood, arises from capillaries in synovial membrane
contains glycoproteins molecules secreted by fibroblasts |
|
|
Term
| What are reinforcing ligaments? |
|
Definition
often are thickened parts of the fibrous capsule
sometimes are extracapsular ligaments located outside the capsule
sometimes are intracapsular ligaments when located internal to capsule |
|
|
Term
| What is the general structure of synovial joints? |
|
Definition
richly supplied with sensory nerves
-detect pain, most monitor how much the capsule is being strected
Have a rich blood supply to supply the synovial membrane
-extensive capillary beds produce basis of synovial fluid
branches of several major blood vessels |
|
|
Term
| What synovial joints contain an articular disc? |
|
Definition
occurs in the temporomandibular joints at the knee
and also in joints whose articulating bones have somewhat different shapes |
|
|
Term
| What is the function of synovial joints? |
|
Definition
lubricating devices, that reduces the friction that could overheat and destroy joint tissue, are subjected to compressive forces
-fluid is squeezed out as opposing cartilages touch, cartilages ride on the slippery film |
|
|
Term
| Are bursae and tendon sheaths synovial joints? |
|
Definition
| NO, they are closed bags of lubricants that reduce friction between body elements |
|
|
Term
| What is a flattened fibrous sac lined by a synovial membrane? |
|
Definition
|
|
Term
| what is a elongated bursa that wraps around a tendon? |
|
Definition
|
|
