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Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
Section: Chapter Questions
Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
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The image is a cross-sectional diagram of a long bone, highlighting its internal structure and labeling various parts. Below is the transcription and detailed explanation of the diagram:

1. **Periosteum** (outermost layer)
2. **Epiphysis** (end of the bone)
3. **Spongy bone** (porous, found at the ends)
4. **Diaphysis** (shaft of the bone)
5. **Epiphyseal line/plate** (growth area)
6. **Compact bone** (dense, forms the outer layer of bone)
7. **Medullary cavity** (central cavity containing marrow)
8. **Endosteum** (inner lining of the medullary cavity)
9. **Yellow marrow** (fat storage)
10. **Nutrient artery** (blood supply to the bone)

The diagram visually represents the different bone layers from the outer periosteum to the inner medullary cavity and differentiates between spongy and compact bone. The yellow marrow within the medullary cavity is depicted as well as the nutrient artery, crucial for supplying blood to the bone. The growth plates, critical during bone development, are also marked.
Transcribed Image Text:The image is a cross-sectional diagram of a long bone, highlighting its internal structure and labeling various parts. Below is the transcription and detailed explanation of the diagram: 1. **Periosteum** (outermost layer) 2. **Epiphysis** (end of the bone) 3. **Spongy bone** (porous, found at the ends) 4. **Diaphysis** (shaft of the bone) 5. **Epiphyseal line/plate** (growth area) 6. **Compact bone** (dense, forms the outer layer of bone) 7. **Medullary cavity** (central cavity containing marrow) 8. **Endosteum** (inner lining of the medullary cavity) 9. **Yellow marrow** (fat storage) 10. **Nutrient artery** (blood supply to the bone) The diagram visually represents the different bone layers from the outer periosteum to the inner medullary cavity and differentiates between spongy and compact bone. The yellow marrow within the medullary cavity is depicted as well as the nutrient artery, crucial for supplying blood to the bone. The growth plates, critical during bone development, are also marked.
### Diagram of a Long Bone Structure

This diagram illustrates the cross-section of a typical long bone, highlighting various components crucial to its structure and function. Below is a detailed description of each labeled part as it relates to bone anatomy:

1. **Articular Cartilage:** This smooth, white tissue covers the ends of bones where they come together to form joints. It allows bones to glide over each other with minimal friction during movement.

2. **Compact Bone Tissue:** Dense and strong, this layer provides structural support and protection to the bone. It forms the outer layer of the bone and is responsible for the bone's strength.

3. **Diaphysis:** Also known as the shaft, this is the elongated, central part of the bone. It is primarily composed of compact bone which surrounds a central medullary cavity.

4. **Endosteum:** This thin vascular membrane lines the inner surface of the bony tissue that forms the medullary cavity. It plays a role in bone growth and repair.

5. **Epiphysis:** The rounded ends of the bone, located at the joint surfaces. They are usually wider than the diaphysis and are filled with spongy bone containing red marrow.

6. **Medullary Cavity:** Also known as the marrow cavity, this central cavity of bone shafts houses yellow marrow in adults and is involved in the production of red and white blood cells.

7. **Metaphysis:** The narrow portion between the epiphysis and the diaphysis. In growing bones, it includes the growth plate and is involved in the lengthening of the bone.

8. **Periosteum:** A dense layer of vascular connective tissue enveloping the bones except at the surfaces of the joints. It contains nerves and blood vessels that nourish the bone.

9. **Red Marrow:** Found in the spongy bone of the epiphysis, this tissue is involved in producing red blood cells, white blood cells, and platelets.

10. **Yellow Marrow:** Located in the medullary cavity, this marrow mainly stores fat, which can serve as an energy reserve.

This diagram is a simplified representation and is typical for educational purposes, reflecting the essential features of a long bone's anatomy.
Transcribed Image Text:### Diagram of a Long Bone Structure This diagram illustrates the cross-section of a typical long bone, highlighting various components crucial to its structure and function. Below is a detailed description of each labeled part as it relates to bone anatomy: 1. **Articular Cartilage:** This smooth, white tissue covers the ends of bones where they come together to form joints. It allows bones to glide over each other with minimal friction during movement. 2. **Compact Bone Tissue:** Dense and strong, this layer provides structural support and protection to the bone. It forms the outer layer of the bone and is responsible for the bone's strength. 3. **Diaphysis:** Also known as the shaft, this is the elongated, central part of the bone. It is primarily composed of compact bone which surrounds a central medullary cavity. 4. **Endosteum:** This thin vascular membrane lines the inner surface of the bony tissue that forms the medullary cavity. It plays a role in bone growth and repair. 5. **Epiphysis:** The rounded ends of the bone, located at the joint surfaces. They are usually wider than the diaphysis and are filled with spongy bone containing red marrow. 6. **Medullary Cavity:** Also known as the marrow cavity, this central cavity of bone shafts houses yellow marrow in adults and is involved in the production of red and white blood cells. 7. **Metaphysis:** The narrow portion between the epiphysis and the diaphysis. In growing bones, it includes the growth plate and is involved in the lengthening of the bone. 8. **Periosteum:** A dense layer of vascular connective tissue enveloping the bones except at the surfaces of the joints. It contains nerves and blood vessels that nourish the bone. 9. **Red Marrow:** Found in the spongy bone of the epiphysis, this tissue is involved in producing red blood cells, white blood cells, and platelets. 10. **Yellow Marrow:** Located in the medullary cavity, this marrow mainly stores fat, which can serve as an energy reserve. This diagram is a simplified representation and is typical for educational purposes, reflecting the essential features of a long bone's anatomy.
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