Anatomy: Vertebral Column, Ribs, and Thoracic Cage

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Questions and Answers

What type of tissue is bone?

  • Connective tissue (correct)
  • Epithelial tissue
  • Muscle tissue
  • Nervous tissue

What are osteocytes?

  • Cells that release acid to dissolve collagen
  • Mature bone cells (correct)
  • Cells that deposit collagen matrix
  • Immature bone cells

What is the name of the compound that forms the bone matrix?

  • Chondroitin sulfate
  • Hydroxyapatite [Ca5(PO4)3(OH)] (correct)
  • Keratin
  • Elastin

What are osteons in bone structure?

<p>Concentric layers of mineralized matrix deposited around a central canal (A)</p> Signup and view all the answers

What do osteoclasts do in the bone?

<p>Release acid to dissolve collagen and mineral coating (D)</p> Signup and view all the answers

What is the main function of spongy bone?

<p>Provide support and structure (D)</p> Signup and view all the answers

What is the main function of the thoracic cage?

<p>To protect the heart and lungs (A)</p> Signup and view all the answers

How are ribs 1-7 classified?

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

What is the composition of the discs that cushion the vertebral column?

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

How are ribs 8-12 different from ribs 1-7 in terms of attachment to the sternum?

<p>They attach indirectly to the sternum through another rib's cartilage (A)</p> Signup and view all the answers

What is the role of the spine's 'S'-shaped curvature?

<p>To distribute body weight evenly (A)</p> Signup and view all the answers

What is the main function of the human skeleton?

<p>To support the body (B)</p> Signup and view all the answers

Why do some bones in the human skeleton fuse together as the body develops?

<p>To reduce the total number of bones (D)</p> Signup and view all the answers

Which part of the human skeleton protects the brain from nontraumatic injury?

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

What is the main function of trabecular bone in the human skeletal system?

<p>To create lightweight bones (A)</p> Signup and view all the answers

How does the human skeleton contribute to movement?

<p>By allowing movement through joints (A)</p> Signup and view all the answers

Which component of the human skeleton is described as the main support center for the upper body?

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

Which type of joint allows for radial movement in almost any direction?

<p>Ball and socket joint (D)</p> Signup and view all the answers

What distinguishes a floating rib from other ribs?

<p>It does not have costal cartilage attached to it (C)</p> Signup and view all the answers

Which type of bone fracture occurs when the bone does not protrude through the skin?

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

Where would you find a saddle joint in the human body?

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

Which type of joint allows bones to slide past each other?

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

In which type of bone fracture does the bone break in several spots?

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

Which bone disease is characterized by porous, brittle bones prone to fractures?

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

Which bone in the human skeleton is correctly paired with a short bone shape?

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

Which bone in the human skeleton is incorrectly paired with its shape?

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

Which bone is NOT part of the appendicular skeleton?

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

How many metacarpals are typically found in the human hand?

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

Which bone in the human skeleton is correctly paired with an irregular bone shape?

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

Osteoblasts are mature bone cells responsible for dissolving collagen and mineral coating.

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

The combination of hard mineral and flexible collagen makes bone less brittle than cartilage.

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

Spongy bone is also known as cortical bone.

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

Each osteon has concentric layers of mineralized matrix deposited around a central canal.

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

Osteocytes are immature bone cells that deposit a matrix of collagen.

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

Osteoclasts release an acid to dissolve collagen and mineral coating in bones to lower calcium levels in the blood.

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

Trabecular bone is responsible for the lightweight nature of bones.

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

The human skeleton is composed of bones, cartilage, ligaments, tendons, and blood vessels.

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

Newborn humans have 305 bones in their skeleton.

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

The backbone is the main support center for the lower body.

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

The vertebral column protects the heart and lungs.

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

All joints between bones allow the same range of movement.

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

Ribs 11 and 12 are known as fixed ribs due to the presence of costal cartilage attached to them.

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

A ball and socket joint allows for radial movement in almost any direction and can be found in elbows and knees.

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

In a gliding joint, bones slide past each other, and this type of joint is found at the end of clavicles.

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

A saddle joint occurs when two bones have only convex regions touching, limiting the range of movement.

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

In a complete bone fracture, the bone partly fractures on one side but does not break completely.

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

Greenstick fractures are more common in adults due to their stronger and less elastic bones.

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

Osteoporosis is a metabolic bone disorder where bones become dense and resistant to fractures.

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

Arthritis is a condition characterized by joint inflammation.

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

Scoliosis results in a longitudinal curvature of the spine.

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

The sternum is correctly paired with the classification of an irregular bone.

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

The femur is part of the appendicular skeleton.

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

Clavicle is correctly classified as part of the appendicular skeleton.

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

The human skeleton is divided into three divisions: cranium, vertebral column, and sternum.

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

Hematopoiesis, the formation of blood cells, occurs in the yellow bone marrow.

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

The largest bone of the human body is the humerus.

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

The Vertebral Column consists of 33 vertebrae separated by intervertebral discs.

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

The diaphysis is composed mostly of spongy bone.

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

The axial skeleton consists of 80 bones in total.

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

Cartilage is eventually replaced by solid bone in adults, except in joints.

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

The periosteum forms the outside covering of the epiphysis.

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

Flat bones are significantly longer than they are wide.

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

The fibrocartilage type of cartilage is found in costal cartilage within the rib cage.

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

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