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Questions and Answers
Which is a function of the skeletal system? (Select all that apply)
Which is a function of the skeletal system? (Select all that apply)
A bone with approximately the same width, length, and height is most likely?
A bone with approximately the same width, length, and height is most likely?
Short bone
The shaft of a long bone is properly called the?
The shaft of a long bone is properly called the?
Diaphysis
Sites of hematopoiesis include?
Sites of hematopoiesis include?
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An osteon has?
An osteon has?
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The organic portion of matrix is important in providing all but?
The organic portion of matrix is important in providing all but?
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The flat bones of the skull develop from what tissue?
The flat bones of the skull develop from what tissue?
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The remodeling of bone is a function of which cells?
The remodeling of bone is a function of which cells?
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Bone remodeling in adults is regulated and directed mainly by?
Bone remodeling in adults is regulated and directed mainly by?
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Where within the epiphyseal plate are the dividing cartilage cells located?
Where within the epiphyseal plate are the dividing cartilage cells located?
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Wolff's law is connected with?
Wolff's law is connected with?
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Formation of the bony callus in fracture repair is followed by?
Formation of the bony callus in fracture repair is followed by?
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The fracture type in which the bone ends are incompletely separated is?
The fracture type in which the bone ends are incompletely separated is?
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The disorder in which bones are porous and thin but bone composition is normal is?
The disorder in which bones are porous and thin but bone composition is normal is?
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The bone cell that produces the bony matrix in a developing bone is the?
The bone cell that produces the bony matrix in a developing bone is the?
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The primary ossification center of a long bone is found in the?
The primary ossification center of a long bone is found in the?
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A local coroner determined that the unidentified skeleton found last week was that of a weight lifter because the muscle attachment sites were much thicker than in a normal person. This phenomenon is known as?
A local coroner determined that the unidentified skeleton found last week was that of a weight lifter because the muscle attachment sites were much thicker than in a normal person. This phenomenon is known as?
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Which part of a long bone are you studying if you are looking at the articular cartilage?
Which part of a long bone are you studying if you are looking at the articular cartilage?
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Spongy bone is made up of small flat pieces of bone called?
Spongy bone is made up of small flat pieces of bone called?
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What membrane lines the internal canals and covers the trabecular of spongy bone?
What membrane lines the internal canals and covers the trabecular of spongy bone?
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The organic portion of matrix is important in providing?
The organic portion of matrix is important in providing?
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Study Notes
Functions of the Skeletal System
- Provides support, acts as a hematopoietic site, stores minerals, and serves as levers for muscle activity.
Types of Bones
- Short bones: approximately equal in width, length, and height.
Bone Structure
- Diaphysis refers to the shaft of a long bone.
- Osteon structure includes a central canal with blood vessels, concentric lamellae, osteocytes located in lacunae, and canaliculi connecting lacunae to the central canal.
Hematopoiesis
- Occurs in red marrow cavities of spongy bone, the diploe of flat bones, and the medullary cavities in the bones of infants.
Organic Matrix
- The organic portion provides tensile strength, the ability to resist stretch, and flexibility but does not contribute to hardness.
Development of Bones
- Flat bones of the skull develop from fibrous connective tissue.
Bone Remodeling
- Osteoblasts and osteoclasts are responsible for remodeling bone.
- Influenced by mechanical stress and parathyroid hormone (PTH).
Growth and Repair
- Dividing cartilage cells are located farthest from the shaft within the epiphyseal plate.
- Wolff's Law posits that bone shape is determined by mechanical stresses.
- After bone fracture repair, the formation of the bony callus is followed by remodeling.
Types of Fractures
- Greenstick fractures occur when bone ends are incompletely separated.
Bone Disorders
- Osteoporosis is characterized by porous and thin bones with normal composition.
Bone Cells and Ossification
- Osteoblasts generate the bony matrix in developing bones.
- Primary ossification center of a long bone is located in the diaphysis.
Bone Adaptation
- Wolff's Law also explains the thickening of muscle attachment sites in response to weight lifting.
Long Bone Anatomy
- Articular cartilage is found at the epiphysis of a long bone.
- Spongy bone consists of small flat pieces termed trabeculae.
- Endosteum is the membrane lining internal canals and covering trabeculae of spongy bone.
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Description
Test your knowledge of the skeletal system with these flashcards covering Chapter 6. Explore various functions of bones, types of bones, and their anatomy. This quiz is perfect for students studying biology or anatomy.
