Skeletal System

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What happens to the epiphyseal plate as growth in the bone is halted?

It narrows and finally disappears (correct)
It transforms into a different type of tissue
It widens and becomes more prominent
It remains the same throughout life

What is the primary purpose of bone remodelling?

To replace old bone with new bone
To regulate blood calcium levels (correct)
To repair fractures
To increase bone strength in areas of physical stress

What is the term for a fracture where the skin is pierced?

Compound fracture (correct)
Simple fracture
Comminuted fracture
Greenstick fracture

What is the first stage of bone healing?

Haematoma formation (A) Signup and view all the answers

What type of fracture occurs when the bone is broken into multiple pieces?

Comminuted fracture (A) Signup and view all the answers

What is the primary function of the osteoid component in bone structure?

Offers flexibility and support to the bone (D) Signup and view all the answers

What is the role of osteoblasts in bone formation?

To produce and secrete osteoid and deposit minerals (D) Signup and view all the answers

What is the main function of the skeletal system?

To provide structural support and protection to internal organs (C) Signup and view all the answers

What is the name of the hardened matrix in bone structure?

Hydroxyapatite (C) Signup and view all the answers

Where are osteogenic stem cells typically found?

In the periostem and endosteum (C) Signup and view all the answers

What is the approximate percentage of osteoblasts in bone mass?

2% (D) Signup and view all the answers

What is the function of osteoclasts in bone remodeling?

To remove mineral from the matrix (C) Signup and view all the answers

What is the main function of compact bone?

To provide strength for weight bearing (C) Signup and view all the answers

What is the characteristic of cancellous bone?

It is light and has a haphazard arrangement of trabeculae (D) Signup and view all the answers

What is the function of red bone marrow?

To produce blood cells (D) Signup and view all the answers

What is the classification of bones based on shape?

Flat, long, short, and irregular bones (A) Signup and view all the answers

What is the process of bone formation called?

Osteogenesis (C) Signup and view all the answers

What is the primary function of osteoclasts in endochondral ossification?

To erode the centre of the diaphysis and create a marrow cavity (B) Signup and view all the answers

What happens to the epiphyseal plate at the end of puberty?

It becomes inactive and disappears (B) Signup and view all the answers

In which type of ossification does a cartilage model lay down first?

Endochondral ossification (D) Signup and view all the answers

What is the outcome of the remodelling process in intramembranous ossification?

Compact bone develops from cancellous bone (D) Signup and view all the answers

What is the role of mesenchymal cells in intramembranous ossification?

They secrete the organic component of bone (C) Signup and view all the answers

What stimulates bone growth during puberty?

Increased levels of sex, growth, and thyroid hormones (C) Signup and view all the answers

What type of joint is characterized by a thin layer of dense irregular connective tissue uniting the bones of the skull?

Suture (C) Signup and view all the answers

Skeletal System

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