8 Questions
Which part of the long bone contains blood stem cells that can become RBC, WBC, or platelets?
Marrow
What is the function of the periosteum?
To protect the inner layers of the bone
Where is the medullary cavity located?
In the diaphysis
Which type of skeleton is supported by the hydrostatic pressure of body fluids?
Hydroskeleton
What are vertebrates?
Animals with an endoskeleton
Which type of skeleton is composed of bones and cartilages?
Endoskeleton
Which type of skeleton is found in arthropods and most molluscs?
Exoskeleton
What is cartilage?
A connective tissue in the skeletal systems
Study Notes
Bone Structure and Composition
- The bone marrow, which is located within the medullary cavity of long bones, contains blood stem cells that can differentiate into red blood cells (RBC), white blood cells (WBC), or platelets.
Tissue Layers
- The periosteum, a fibrous connective tissue, surrounds bones and provides a site for muscle attachment, nerve and blood vessel passage, and bone growth.
Skeletal Systems
- The hydrostatic skeleton, supported by the pressure of body fluids, is found in animals such as worms and starfish.
Vertebrates
- Vertebrates are a group of animals characterized by the presence of a vertebral column (backbone).
Skeletal Types
- The endoskeleton, composed of bones and cartilages, is found in vertebrates.
- The exoskeleton, found in arthropods and some molluscs, is a hard outer covering that provides support and protection.
Tissue Definition
- Cartilage is a flexible, yet strong, connective tissue found in various body parts, including the ears, nose, and joints.
Test your knowledge of the anatomy of long bones with this quiz! Learn about the diaphysis, epiphysis, metaphysis, periosteum, medullary cavity, endosteum, and different types of marrow.
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