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Ch. 5 The Skeletal System
Marieb - Essentials of Human Anatomy & Physiology 13th Edition
Marieb13th EditionEssentials of Human Anatomy & PhysiologyISBN: 9780135624340당신이 사용하는 게 아니라요?교과서 변경
모든 교과서Marieb 13th EditionCh. 5 The Skeletal System문제 3
5장, 문제 3

Which of the following would you expect to be prominent in osteoclasts?
a. Golgi apparatus
b. Lysosomes
c. Microfilaments
d. Exocytosis

검증된 단계별 안내
1
Understand the function of osteoclasts: Osteoclasts are specialized cells responsible for bone resorption, breaking down bone tissue to release minerals like calcium and phosphate into the bloodstream. This process involves enzymatic degradation and cellular activity.
Analyze the role of lysosomes: Lysosomes are organelles containing hydrolytic enzymes that break down cellular components. In osteoclasts, lysosomes play a critical role in degrading the organic matrix of bone during resorption.
Consider the importance of the Golgi apparatus: The Golgi apparatus is involved in packaging and modifying proteins, including enzymes that osteoclasts use for bone resorption. It is likely prominent in osteoclasts to support their enzymatic activity.
Evaluate the role of microfilaments: Microfilaments, composed of actin, are part of the cytoskeleton and are involved in cell movement and maintaining the structure of the ruffled border in osteoclasts, which is essential for bone resorption.
Examine exocytosis: Exocytosis is the process by which cells release substances to the extracellular environment. Osteoclasts use exocytosis to secrete enzymes and acids that degrade the inorganic and organic components of bone tissue during resorption.

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주요 개념

질문에 올바르게 답하기 위해 반드시 이해해야 하는 핵심 개념들은 다음과 같습니다.

Osteoclast Function

Osteoclasts are specialized cells responsible for bone resorption, a process where they break down bone tissue. This function is crucial for maintaining bone health and calcium homeostasis in the body. Understanding their role helps in identifying the cellular components that support their activity.
추천 영상:
4:34
Osteoclasts

Lysosomes

Lysosomes are membrane-bound organelles that contain digestive enzymes to break down waste materials and cellular debris. In osteoclasts, lysosomes play a vital role in the degradation of bone matrix components, facilitating the resorption process. Their prominence in osteoclasts is indicative of the cell's function in bone remodeling.
추천 영상:
가이드 코스
05:38
Lysosomes & Peroxisomes

Exocytosis

Exocytosis is a cellular process where substances are expelled from a cell through vesicles that fuse with the plasma membrane. In osteoclasts, exocytosis is important for the secretion of enzymes and acids that aid in bone resorption. Understanding this process is essential for recognizing how osteoclasts interact with their environment during bone remodeling.
추천 영상:
가이드 코스
02:02
Endocytosis and Exocytosis
관련 실천
교과서 질문

Match the appropriate name with the structure in the figure.

4. Canaliculus

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교과서 질문

Bones that articulate with the sphenoid include which of the following?

a. Parietal

b. Frontal

c. Occipital

d. Zygomatic

e. Ethmoid

892
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교과서 질문

Match the appropriate name with the structure in the figure.

3. Lacuna

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교과서 질문

Which parts of the thoracic vertebrae articulate with the ribs?

862
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교과서 질문

Match the appropriate name with the structure in the figure.

5. Osteocyte

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교과서 질문

Which humeral process articulates with the radius?

a. Trochlea

b. Greater tubercle

c. Lesser tubercle

d. Capitulum

e. Olecranon fossa

663
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