What are the four shapes/sizes of bone?2. What are two types of bone tissue?3. What is the structure of an osteon, or haversian system?
Question
What are the four shapes/sizes of bone?2. What are two types of bone tissue?3. What is the structure of an osteon, or haversian system?
Solution
-
The four shapes/sizes of bones are:
- Long Bones: These are longer than they are wide. They have a shaft and two ends. Examples include the femur, humerus, and phalanges.
- Short Bones: These are approximately as wide as they are long. Examples include the bones of the wrist and ankle.
- Flat Bones: These are thin and usually curved. Examples include the ribs, breastbone, and skull.
- Irregular Bones: These have complex shapes that do not fit into the other categories. Examples include the vertebrae and certain facial bones.
-
The two types of bone tissue are:
- Compact (Cortical) Bone: This is the hard outer layer of bones. It provides strength, support and protection.
- Spongy (Cancellous) Bone: This is found inside bones and is lighter and less dense than compact bone. It is also highly vascular and often contains red bone marrow.
-
The structure of an osteon, or haversian system, is as follows:
- Central (Haversian) Canal: This is the central channel containing blood vessels and nerves.
- Concentric Lamellae: These are layers of compact bone tissue that surround the central canal.
- Lacunae: These are small spaces between the lamellae which contain osteocytes (bone cells).
- Canaliculi: These are tiny canals that connect the lacunae to each other and the central canal.
- Periosteum: This is the outer surface layer of the bone.
Similar Questions
Exit Ticket: 1. What are the three types of muscle tissue?2. What are the different types of muscle contractions? Briefly explain each.
1. List the three types of muscles.2. When thinking about muscle types, what is meant by striated/non-striated and voluntary/involuntary?3. How does the connective tissue of muscle relate to the development of compartment syndrome?
1. What are the two groups of bones that form the skull?2. List the cranial bones that articulate with the parietal bone.3. What are the functions of the foramen magnum and occipital condyles?4. With regard to head injury, why is the foramen magnum called a ‘death-trap’?
. What is a mineral?2. Describe how rocks differ from minerals.3. Describe three ways mineral and rocks can form.4. Compare and contrast extrusive and intrusive igneous rocks.5. What are the two main kinds of igneous rock?6. What minerals would you expect to see in a granite?7. What minerals would you expect to see in a basalt?8. What minerals would you expect to see in a dolerite?9. Name TWO rock forming silicate minerals.10. What are the differences between felsic and mafic rocks?11. Describe mineralogy of selected parent rock material of SouthAfrica.
Bone is an organ made up of more than one type of tissue. What living tissues make up a bone? (Check all that apply.)Check All That ApplyBone tissueBone tissueCartilageCartilageDense connective tissueDense connective tissueBloodBloodNervous tissueNervous tissueEndocrine tissueEndocrine tissueLymphatic tissue
Upgrade your grade with Knowee
Get personalized homework help. Review tough concepts in more detail, or go deeper into your topic by exploring other relevant questions.