Chapter 7 & 8
Review Questions 1-15 pg. 246
1. B, G 2. H 3. D 4. D, F 5. E 6. C 7. A, B, D, H 8. I
1. G 2. F 3. B 4. A 5. B 6. C 7. D 8. E
1. B 2. C 3. E 4. A 5. H 6. E 7. F
4.) The cranial bones are made up of the frontal bone, two parietal bones, two temporal bones, the occipital bone, sphenoid bone, and ethmoid bone. The facial bones consists of two nasal bones, two maxillae, two zygomatic bones, one mandible, two lacrimal bones, two palatine bones, two inferior nasal conchae, and the vomer bone. The functions of the cranial bones are to protect the brain, stabilize the position of the brain, blood vessels and nerves, and provide space for the muscles that move the head. The function of the facial bones are to provide framework for the face, …show more content…
IT has three holes for the vertebral foramen and two for the transverse foramina. The thoracic vertebrae have longer and heavier transverse processes and are characterized by their articulating surfaces with the ribs. The lumbar vertebrae have pedicles and laminae that are shorter and thicker than those of other vertebrae, the vertebral foramen is triangular, and spinous processes are short.
8.) Intervertebral discs allow the spine to flex and extend and to a lesser extent, to bend laterally. They enhance the flexibility in the lumbar and cervical regions.
9.) Nucleus pulposus gives the disc its elasticity and compressibility. Annulus fibrosus limits the expansion of the nucleus pulposus when the spine is compressed. It acts like a woven strap to bind successive vertebrae together, withstands twisting forces, and resists tension in the spine. Nucleus pulposus provides durability and strength. Annulus fibrosus provides resilience and is involved in a “slipped”