Axial Skeleton
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Questions and Answers

How many bones make up the human skeletal system?

  • 250
  • 180
  • 206 (correct)
  • 220

What is the primary role of the axial skeleton?

  • To store minerals
  • To provide shape and support to the body (correct)
  • To protect internal organs
  • To provide movement to the body

What is the function of bones in hematopoiesis?

  • To provide movement to the body
  • To store minerals
  • To protect internal organs
  • To form blood cells (correct)

What percentage of bones are composed of water?

<p>50% (C)</p> Signup and view all the answers

What is the purpose of the appendicular skeleton?

<p>To provide movement to the body (C)</p> Signup and view all the answers

What is the term for the manner in which bones come together at a joint?

<p>Articulation (C)</p> Signup and view all the answers

What is the main component of osseous tissue?

<p>A solid, calcified, rigid substance (A)</p> Signup and view all the answers

What type of bone is the femur classified as?

<p>Long bone (A)</p> Signup and view all the answers

Which type of joint allows no movement?

<p>Synarthrosis (A)</p> Signup and view all the answers

What is the function of the periosteum?

<p>Outer covering of the bone (A)</p> Signup and view all the answers

What type of bone is the vertebrae classified as?

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

What is the diaphysis?

<p>Shaft of the bone (C)</p> Signup and view all the answers

What type of joint allows slight movement?

<p>Amphiarthrosis (D)</p> Signup and view all the answers

What is the epiphysis?

<p>Growing end of the bone (B)</p> Signup and view all the answers

What is the advantage of the spinal curves in the vertebral column?

<p>They can support the weight of the body and provide balance (D)</p> Signup and view all the answers

How many vertebrae are present in the lumbar curve?

<p>5 (C)</p> Signup and view all the answers

What is the function of osteoclasts in bone growth?

<p>They break down bones (A)</p> Signup and view all the answers

What is the characteristic of the male pelvis?

<p>It is shaped like a funnel and is heavier and stronger (B)</p> Signup and view all the answers

What is osteoporosis?

<p>An age-related loss of bone mass or density (A)</p> Signup and view all the answers

What is the function of osteoblasts in bone growth?

<p>They form new bones (A)</p> Signup and view all the answers

What forms the pelvic basin?

<p>Hip bones, sacrum, and coccyx (D)</p> Signup and view all the answers

What is the primary function of osteocytes in the bone?

<p>To transport nutrients and wastes (D)</p> Signup and view all the answers

What is the main component of the extracellular matrix of bone that provides resilience?

<p>Collagen (A)</p> Signup and view all the answers

What is the process of bone resorption controlled by?

<p>Osteoclasts and parathyroid hormone (A)</p> Signup and view all the answers

What is the effect of a deficiency of vitamin D on bone development?

<p>Rickets and osteomalacia (B)</p> Signup and view all the answers

What is the effect of excessive growth hormone on bone growth?

<p>Gigantism and acromegaly (A)</p> Signup and view all the answers

Where does blood cell formation occur in the body?

<p>Red bone marrow (B)</p> Signup and view all the answers

What is the primary function of physical stress on bone growth?

<p>Stimulates bone growth (B)</p> Signup and view all the answers

What is the main function of sex hormones in bone development?

<p>Stimulates bone formation (B)</p> Signup and view all the answers

What is the primary function of the thyroid gland in bone development?

<p>Directs bone deposition and resorption (C)</p> Signup and view all the answers

Osteocytes are responsible for transporting nutrients and wastes.

<p>True (A)</p> Signup and view all the answers

The extracellular matrix of bone is composed of collagen and organic salts.

<p>False (B)</p> Signup and view all the answers

Parathyroid hormone is involved in bone deposition.

<p>False (B)</p> Signup and view all the answers

Vitamin D deficiency leads to fragile bones.

<p>False (B)</p> Signup and view all the answers

Insufficient thyroid hormone can lead to accelerated bone growth.

<p>False (B)</p> Signup and view all the answers

Physical stress can inhibit bone growth.

<p>False (B)</p> Signup and view all the answers

Hematopoiesis occurs in the yellow bone marrow.

<p>False (B)</p> Signup and view all the answers

The primary function of the skeletal system is to store inorganic salts.

<p>False (B)</p> Signup and view all the answers

Calcium phosphate is a type of inorganic salt stored in bones.

<p>True (A)</p> Signup and view all the answers

Osteoblasts are responsible for breaking down bone tissue.

<p>False (B)</p> Signup and view all the answers

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