Classification of Bones and Gross Anatomy

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Which type of bone tissue is dense and looks smooth and homogeneous?

Compact bone

Where does blood cell formation, hematopoiesis, occur in the human body?

Within the marrow cavities of certain bones

Which bones are typically longer than wide and have a shaft with heads at both ends?

Long bones

What are examples of long bones in the human body?

<p>Humerus, femur, radius</p> Signup and view all the answers

Which bones are generally cube-shaped and contain mostly spongy bone tissue?

<p>Short bones</p> Signup and view all the answers

What is the function of spongy bone in the skeletal system?

<p>Facilitate blood cell formation</p> Signup and view all the answers

What distinguishes compact bone from spongy bone?

<p>Looks smooth and homogeneous</p> Signup and view all the answers

Which type of bone is classified as having an irregular shape and does not fit into other bone classification categories?

<p>Irregular bone</p> Signup and view all the answers

What is the function of the medullary cavity in a long bone?

<p>Storage area for adipose tissue</p> Signup and view all the answers

Which part of a long bone is composed mostly of a thin layer of spongy bone and articulates with other bones?

<p>Epiphysis</p> Signup and view all the answers

What is the function of Sharpey's fibers in a long bone?

<p>Secures periosteum to underlying bone</p> Signup and view all the answers

Which classification of bones includes examples like the skull, ribs, and sternum?

<p>Flat bones</p> Signup and view all the answers

What is the primary composition of the medullary cavity in adults?

<p>Storage area for adipose tissue</p> Signup and view all the answers

Which part of a long bone makes up the bone's length and is mainly composed of compact bone?

<p>Diaphysis</p> Signup and view all the answers

What covers the external surface of the epiphyses and provides a smooth and slippery surface for joint movement?

<p>Articular cartilage</p> Signup and view all the answers

What is the primary function of osteoclasts in bone tissue?

<p>Destroying bone matrix for remodeling</p> Signup and view all the answers

Which type of cell is responsible for bone formation in the skeletal system?

<p>Osteoblasts</p> Signup and view all the answers

What is the function of epiphyseal plates in long bones during childhood?

<p>To allow for longitudinal bone growth</p> Signup and view all the answers

Which part of the human skeleton is primarily composed of hyaline cartilage in embryos?

<p>Ribs</p> Signup and view all the answers

What is the function of canaliculi in bone tissue?

<p>Connect all bone cells to nutrient supply</p> Signup and view all the answers

Which category of bone marking includes projections that grow out from the bone surface?

<p>Processes</p> Signup and view all the answers

Where are osteons (Haversian systems) found in bone tissue?

<p>Around the central canal</p> Signup and view all the answers

'Bone remodeling' is a process primarily carried out by which types of cells?

<p>Osteoblasts and osteoclasts</p> Signup and view all the answers

What is the main function of bones in the body as described in the text?

<p>Protection of internal organs</p> Signup and view all the answers

How many bones are there in the axial skeleton according to the text?

<p>80 bones</p> Signup and view all the answers

Which of the following is NOT a part of the skeletal system mentioned in the text?

<p>Tendons</p> Signup and view all the answers

How are the 206 bones in the skeletal system divided according to the text?

<p>Axial and appendicular skeleton</p> Signup and view all the answers

Which of the following is a major anatomical area of a long bone discussed in the text?

<p>Shaft</p> Signup and view all the answers

What role do bone salts play in bone structure as per the text?

<p>Providing hardness and resistance to compression</p> Signup and view all the answers

Which bone formation process involves the replacement of pre-existing connective tissue with bone tissue?

<p>Endochondral ossification</p> Signup and view all the answers

What is the main function of the rib cage as described in the text?

<p>Facilitating breathing by protecting the lungs</p> Signup and view all the answers

Which of the following situations does bone formation NOT occur in?

<p>When muscles contract</p> Signup and view all the answers

Which bone is correctly matched with its location?

<p>Flat bone - cranium</p> Signup and view all the answers

What connects neighboring osteocytes in an osteon?

<p>Lacuna</p> Signup and view all the answers

Which organelle is prominent in osteoclasts?

<p>Lysosomes</p> Signup and view all the answers

Which process causes bones to thicken?

<p>Remodeling</p> Signup and view all the answers

What is the function of osteoblasts in bone formation?

<p>Secrete new bone matrix</p> Signup and view all the answers

Which type of bone is the sternum classified as?

<p>Irregular bone</p> Signup and view all the answers

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