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Questions and Answers
All diarthrotic joints have joint capsules.
All diarthrotic joints have joint capsules.
True (A)
Ligaments are strong bands of connective tissue that connect bones to other bones.
Ligaments are strong bands of connective tissue that connect bones to other bones.
True (A)
A skeleton composed of nothing but synarthrotic joints would have virtually no movement.
A skeleton composed of nothing but synarthrotic joints would have virtually no movement.
True (A)
Nonmoving joints are called diarthrotic joints.
Nonmoving joints are called diarthrotic joints.
The sutures are an example of which type of joint?
The sutures are an example of which type of joint?
Which type of joint uses cartilage to connect bones?
Which type of joint uses cartilage to connect bones?
What do diarthrotic joints make up in the body?
What do diarthrotic joints make up in the body?
A synovial membrane would most likely be found in which type of joint?
A synovial membrane would most likely be found in which type of joint?
Which type of diarthrotic joints permit the widest range of movement?
Which type of diarthrotic joints permit the widest range of movement?
Sutures in the skull are an example of which type of articulation?
Sutures in the skull are an example of which type of articulation?
Give an example of diarthrotic joint.
Give an example of diarthrotic joint.
Give an example of synarthroses.
Give an example of synarthroses.
What does a diarthrotic joint have?
What does a diarthrotic joint have?
Rank the type of joints from MOST moveable to LEAST moveable: Diarthrotic, Amphiarthrotic, Synarthrotic.
Rank the type of joints from MOST moveable to LEAST moveable: Diarthrotic, Amphiarthrotic, Synarthrotic.
The process of cartilage becoming bone is called?
The process of cartilage becoming bone is called?
Where in the long bone does hematopoiesis occur?
Where in the long bone does hematopoiesis occur?
The skeletal system function of hematopoiesis refers to what?
The skeletal system function of hematopoiesis refers to what?
Blood vessels within bone are found in?
Blood vessels within bone are found in?
Which term refers to the ends of a long bone?
Which term refers to the ends of a long bone?
Which of these are bone-resorbing cells?
Which of these are bone-resorbing cells?
This type of bone texture results from needle-like threads of bone called trabeculae.
This type of bone texture results from needle-like threads of bone called trabeculae.
Haversian systems are found in?
Haversian systems are found in?
What differentiates a 2 year old bone from a 20 year old bone?
What differentiates a 2 year old bone from a 20 year old bone?
Osteoblasts eventually take up residence within compact bone in spaces called?
Osteoblasts eventually take up residence within compact bone in spaces called?
The skeleton can still grow as long as there is cartilage left in the?
The skeleton can still grow as long as there is cartilage left in the?
Bone-building cells are called?
Bone-building cells are called?
Which is the strong fibrous membrane covering most of the long bone?
Which is the strong fibrous membrane covering most of the long bone?
Match the function of the skeletal system to the term or description.
Match the function of the skeletal system to the term or description.
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Study Notes
Joints and Articulations
- Diarthrotic joints feature joint capsules and allow for significant movement.
- Ligaments are connective tissue bands that link bones, providing stability.
- A fully synarthrotic joint skeleton would have limited movement capabilities.
- Sutures in the skull are classified as synarthroses, indicating they are immovable.
- Cartilage serves as the connector in amphiarthrotic joints, allowing for slight movement.
- Ball and socket joints are the most mobile type of diarthrotic joints, facilitating a wide range of motion.
- Hinge joints are associated with synovial membranes, indicating they allow for bending movements.
Types of Joints
- Rank of joint mobility:
- Diarthrotic joints are the most movable.
- Amphiarthrotic joints allow limited movement.
- Synarthrotic joints are the least movable.
- Examples:
- Diarthrotic joint example includes the pubic symphysis.
- Synarthroses example includes the coronal suture.
Skeleton and Bone Composition
- Hematopoiesis, or blood cell formation, occurs in the epiphysis of long bones.
- Central canals within bones house blood vessels that supply the bone.
- Epiphysis refers to the ends of long bones.
- Osteoclasts are specialized cells responsible for bone resorption.
- Compact bones contain Haversian systems, vital for structural integrity.
Bone Development and Growth
- Endochondral ossification is the process where cartilage transforms into bone.
- At age two, bones typically contain more cartilage and have epiphyseal plates, allowing growth.
- Bone expands as long as cartilage remains in the epiphyseal plate.
- Osteoblasts are the bone-building cells that contribute to bone formation, residing in lacunae.
Functions of the Skeletal System
- Hematopoiesis is critical for producing blood cells.
- The skeletal system supports the body while maintaining flexibility for movement.
- Protection is provided to vital organs, such as the brain and heart.
- Movement occurs in collaboration with muscle contractions.
- Storage of essential minerals, like calcium, occurs within bones.
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