Chapter 7: The Skeletal System: The Axial Skeleton Principles of Anatomy and Physiology, 12th Edition, by Bryan Derrickson, Gerald Tortora.

Principles of Anatomy and Physiology, 12th Edition, by Bryan Derrickson, Gerald Tortora. Multiple Choice & Essays 1. The branch of medicine that deals with correction of disorders of the musculoskeletal system is called a. Rheumatics b. Podiatry c. Orthopedics d. Cardiology e. Interologist Ans: C Difficulty: easy Feedback: Chapter Opener 2. How many bones are found in the adult human skeleton? a. 200 b. 206 c. 212 d. 227 e. 250 Ans: B Difficulty: easy Feedback: 7.1 3. Which of the following is not true? a. The axial skeleton has 80 bones b. The appendicular skeleton has 126 bones c. The axial skeleton is composed of the bones that run through the axis of the body. d. Children have more bones than adults. e. The appendicular skeleton does not include the girdles. Ans: E Difficulty: easy Feedback: 7.1 4. Which of the following is NOT found in the axial skeleton? a. Hyoid b. Ribs c. Vertebrae d. Carpals e. Sternum Ans: D Difficulty: medium Feedback: 7.1 5. Which of the following is found in the axial skeleton? a. Tarsal b. Tibia c. Sphenoid d. Scapula e. Clavicle Ans: C Difficulty: medium Feedback: 7.1 6. Which type of bone is the femur? a. Long bone b. Short bone c. Flat bone d. Irregular bone e. Sesamoid bone Ans: A Difficulty: medium Feedback: 7.2 7. Bones in the following area protect the brain. a. Cranium b. Vertebral column c. Sacrum d. Face e. Ribcage Ans: A Difficulty: medium Feedback: 7.4 8. Briefly describe the types of bones found in the human body. Ans: The human body contains five types of bones. Long bones have greater length than width and consist of a shaft and a variable number of extremities. Short bones are somewhat cube-shaped because they are nearly equal in length and width. Flat bones are generally thin and composed of two nearly parallel plates of compact bones tissue enclosing a layer of spongy bone tissue. Irregular bones have complex shapes and cannot be grouped into any of the previous categories. Sesamoid bones develop in certain tendons where there is considerable friction, tension and physical stress and are shaped similarly to a sesame seed. Difficulty: medium Feedback: 7.2 9. Which type of bone is the occipital? a. Long bone b. Short bone c. Flat bone d. Irregular bone e. Sesamoid bone Ans: C Difficulty: medium Feedback: 7.2 10. This is a bone located within ankles or wrists. a. Long bone b. Sutural bone c. Irregular bone d. Sesamoid bone e. Short bone Ans: E Difficulty: medium Feedback: 7.2 11. Which of the following is NOT true of surface markings on bone. a. They allow the passage of nerves and blood vessels. b. They provide attachments for muscles. c. They provide movement within the bone. d. They help form joints. e. They can be a depression or a projection. Ans: C Difficulty: medium Feedback: 7.3 12. Which is not true of the skull bones? a. They include mucous membranes b. The only movable bone in the skull is the mandible c. The skull contains foraminas but no fissures d. The facial bones provide support for entrance into the digestive system e. They include sinus cavities Ans: C Difficulty: medium Feedback: 7.4