Human Anatomy: Sinuses & Vertebrae
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Questions and Answers

What is one of the primary functions of the sinuses?

  • To act as a barrier against infections
  • To serve as a structural support
  • To enhance resonance of speech (correct)
  • To protect the brain from impacts

Which characteristic is shared by all sinuses mentioned?

  • They have openings that connect to the throat
  • They vary in size according to age
  • They are lined with mucosa and are air filled (correct)
  • They are filled with mucous

What is a common function of spinal curvatures?

  • To facilitate nerve signal transmission
  • To enhance motor function
  • To absorb shock and maintain balance (correct)
  • To provide structural rigidity

Which of the following is NOT a characteristic of a typical vertebra?

<p>It contains intervertebral discs (A)</p> Signup and view all the answers

Which group of vertebrae is characterized by having a broader body structure?

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

What shape is the lumbar vertebrae described as posteriorly?

<p>Shaped like a moose (C)</p> Signup and view all the answers

What is the shape of the body of lumbar vertebrae?

<p>Thick and kidney-shaped (D)</p> Signup and view all the answers

How many vertebrae are fused to form the sacrum?

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

What does the auricular surface of the sacrum form?

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

What structure is indicated by the anterior sacral foramina?

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

What kind of foramina are found on the posterior side of the sacrum?

<p>Dorsal sacral foramina (C)</p> Signup and view all the answers

Which of these ribs are considered true ribs?

<p>1-7 (D)</p> Signup and view all the answers

Which feature distinguishes lumbar vertebrae from thoracic vertebrae?

<p>Shape of the spinous process (D)</p> Signup and view all the answers

What is the primary function of false ribs?

<p>Protection of the thoracic cavity (A)</p> Signup and view all the answers

Which region of the sternum is the first rib attached to?

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

What types of ribs are classified as floaters?

<p>Ribs 11-12 (C)</p> Signup and view all the answers

Which muscles attach to the xiphoid process?

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

What is the superior costal facet used for?

<p>Articulation with the head of the rib (D)</p> Signup and view all the answers

What component of the rib cage allows for flexibility?

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

Which of the following ribs is not considered a true rib?

<p>Rib 8 (A)</p> Signup and view all the answers

What is the role of intercostal muscles?

<p>Facilitate lung expansion (A)</p> Signup and view all the answers

Which structure is included in the pectoral girdle?

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

What is a common characteristic of floating ribs?

<p>They have no anterior attachment (A)</p> Signup and view all the answers

What part of the ulna articulates with the trochlea of the humerus?

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

Which structure connects the radius and ulna?

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

What is the primary function of the radial fossa?

<p>To receive the head of the radius (B)</p> Signup and view all the answers

What does the coronoid process articulate with?

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

Which articulation is formed by the head of the radius?

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

What is the consequence of a Colle’s fracture?

<p>Fracture at the distal end of the radius (D)</p> Signup and view all the answers

Which structure is NOT a part of the distal radius?

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

What is the role of the olecranon fossa?

<p>To accommodate the olecranon (D)</p> Signup and view all the answers

What is the location of the ulnar notch?

<p>At the distal end of the radius (A)</p> Signup and view all the answers

Which structure is primarily responsible for the upward curve of the medial longitudinal arch?

<p>Interlocking foot bones (B)</p> Signup and view all the answers

Which joint is formed by the radial notch of the ulna?

<p>Proximal radioulnar joint (A)</p> Signup and view all the answers

What distinguishes the great toe (Digit I) from other toes in terms of phalanx structure?

<p>It has no middle phalanx. (B)</p> Signup and view all the answers

Which muscle primarily functions on the dorsal surface of phalanges II to V?

<p>Extensor digitorum longus (D)</p> Signup and view all the answers

What is the purpose of the arches of the foot?

<p>To allow the foot to bear weight (A)</p> Signup and view all the answers

Which of the following describes the transverse arch of the foot?

<p>It runs obliquely from one side of the foot to the other. (C)</p> Signup and view all the answers

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