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Questions and Answers
Which type of bone cell is responsible for dissolving bone away from mature osteocytes?
Which type of bone cell is responsible for dissolving bone away from mature osteocytes?
What is the function of osteoblasts?
What is the function of osteoblasts?
Where are osteocytes found?
Where are osteocytes found?
What connects each lacuna and osteocyte with nutrient blood vessels?
What connects each lacuna and osteocyte with nutrient blood vessels?
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What are the concentric layers of bone matrix called?
What are the concentric layers of bone matrix called?
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What is the function of mature osteocytes?
What is the function of mature osteocytes?
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What type of cells were osteocytes once?
What type of cells were osteocytes once?
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Where are nutrient blood vessels found in the bone?
Where are nutrient blood vessels found in the bone?
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What is the function of osteoclasts?
What is the function of osteoclasts?
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Which type of gland discharges their secretion products directly into the blood or interstitial fluid?
Which type of gland discharges their secretion products directly into the blood or interstitial fluid?
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Which type of gland discharges their secretion products into ducts?
Which type of gland discharges their secretion products into ducts?
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Which type of gland collects their secretory products near the apical face of the cell and then releases them into a duct by pinching a vesicle off the distended end?
Which type of gland collects their secretory products near the apical face of the cell and then releases them into a duct by pinching a vesicle off the distended end?
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Which type of gland collects their secretory product inside the cell and then self-destructs/ruptures to release it?
Which type of gland collects their secretory product inside the cell and then self-destructs/ruptures to release it?
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Which type of gland discharges their secretion product directly through the cell or cytoplasm membrane without injury or cytoplasm loss?
Which type of gland discharges their secretion product directly through the cell or cytoplasm membrane without injury or cytoplasm loss?
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Which type of gland is often called ductless glands?
Which type of gland is often called ductless glands?
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Which type of gland is responsible for producing skin oil?
Which type of gland is responsible for producing skin oil?
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Which type of gland is responsible for producing sweat?
Which type of gland is responsible for producing sweat?
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Which type of gland is responsible for producing milk?
Which type of gland is responsible for producing milk?
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Study Notes
Bone Cell Functions and Locations
- Osteoclasts dissolve bone tissue by breaking down the mineralized matrix, acting away from mature osteocytes.
- Osteoblasts are responsible for bone formation, synthesizing new bone matrix and facilitating mineralization.
- Osteocytes are found within small cavities called lacunae, embedded in the bone matrix.
- Nutrient blood vessels connect to each lacuna and osteocyte through tiny channels called canaliculi.
- Concentric layers of bone matrix are known as lamellae.
- Mature osteocytes maintain bone tissue health, sensing mechanical stress and regulating bone remodeling.
- Osteocytes originate from osteoblasts, which have become trapped in the matrix they secreted.
Blood Vessels in Bone
- Nutrient blood vessels are primarily located in the central canals of osteons, providing essential nutrients and oxygen to bone cells.
Types of Glands
- Endocrine glands discharge secretion products, such as hormones, directly into the blood or interstitial fluid.
- Exocrine glands release their secretion products into ducts that lead to targets such as skin or digestive systems.
- Apocrine glands collect secretions near the apical face of the cell and release them by pinching off a vesicle from the cell's end.
- Holocrine glands gather secretions within the cell and self-destruct to release their contents.
- Merocrine glands secrete products directly through the cell membrane without loss of cell material.
- Endocrine glands are often termed "ductless glands" due to their mode of secretion.
- Sebaceous glands are responsible for producing skin oil (sebum).
- Sweat glands (sudoriferous glands) are responsible for producing sweat.
- Mammary glands are specialized for producing milk.
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Description
Test your knowledge about bone cells with this quiz! Learn about osteoclasts, osteocytes, and osteoblasts, and how they contribute to bone formation and maintenance. Explore concepts like lacunae, lamellae, canaliculi, and haversian canals. Challenge yourself and enhance your understanding of bone biology.
