BIOL 235 9 Exam Study Guide.
Articulation (Joint) -
Fibrous Joints - answerLack a synovial cavity and articulating bones are held closely by dense
irregular connective tissue. Permit little to no movement.
- Suture: thin layer of dense irregular connective tissue. between the bones in the skull...
Articulation (Joint) -
Fibrous Joints - answer✔Lack a synovial cavity and articulating bones are held closely by dense
irregular connective tissue. Permit little to no movement.
- Suture: thin layer of dense irregular connective tissue. between the bones in the skull. Decrease
changes of fractures.
- Syndesmosis: greater distance between the articulating surfaces and more dense irregular tissue
than in a suture. Typically arranged in a bundle, allowing limited movement.
- Gomphosis: cone shaped peg fits into a socket. e.g. roots of teeth and sockets.
- Interosseous membranes: substantial sheet of dense irregular tissue that binds neighbouring
long bones and permits slight movement. e.g. between the radius and luna, and tibia and fibula.
Cartilaginous Joints - answer✔- Synchondrosis: connecting material is hyaline cartilage. e.g.
epiphyseal plate. it is an immovable joint, and bone replaces it after elongating. e.g. between first
rib and sternum, which also ossifies.
- Symphysis: ends of articulating bones are covered in hyaline cartilage, but a broad flat disc of
fibrocartilage connects the bones. All of these joints occur in the middle of the body: e.g. pubic
between anterior surfaces of the hip bones. It is a slightly movable joint.
Synovial Joints - answer✔- Synovial (joint) cavity: between articulating bones. Considerable
movement at joint.
- Articular cartilage: layer of hyaline cartilage covering the bones at a synovial joint. reduces
friction
- Articular capsule: composed of two layers: outer fibrous membrane and inner synovial
membrane.
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