Axial/Appendicular This does not take the place of reviewing the chapter and sections of the textbook! Chapter 4: The Skeletal System Lesson 4.2 The Axial Skeleton The Axial Skeleton • the skull • the vertebral column • the thoracic cage © Goodheart-Willcox Co., Inc. Permission granted to reproduce for educational use only. The Axial Skeleton © Goodheart-Willcox Co., Inc. Permission granted to reproduce for educational use only. The Skull • the cranium – surround the brain • the facial bones – protect the front of the head © Goodheart-Willcox Co., Inc. Permission granted to reproduce for educational use only. The Cranium • • • • • • frontal bone parietal bones (2) temporal bones (2) occipital bones (2) ethmoid bone sphenoid bone © Goodheart-Willcox Co., Inc. Permission granted to reproduce for educational use only. The Facial Bones • • • • • • • • maxillary bones (2) palatine bones (2) zygomatic bones (2) lacrimal bones (2) nasal bones (2) vomer inferior concha bones (2) mandible © Goodheart-Willcox Co., Inc. Permission granted to reproduce for educational use only. The Cranial and Facial Bones © Goodheart-Willcox Co., Inc. Permission granted to reproduce for educational use only. The Vertebral Column • regions of the spine – – – – – cervical thoracic lumbar sacrum coccyx • curves of the spine – – – – cervical curve thoracic curve lumbar curve sacral curve © Goodheart-Willcox Co., Inc. Permission granted to reproduce for educational use only. Structures of the Vertebrae • • • • • the vertebral body the vertebral arch the transverse processes the spinous process the superior and inferior articular processes © Goodheart-Willcox Co., Inc. Permission granted to reproduce for educational use only. Structures of the Vertebrae © Goodheart-Willcox Co., Inc. Permission granted to reproduce for educational use only. Abnormal Spinal Curvatures • lordosis • kyphosis • scoliosis © Goodheart-Willcox Co., Inc. Permission granted to reproduce for educational use only. The Intervertebral Discs • located between vertebrae • shock absorbers • allow flexibility © Goodheart-Willcox Co., Inc. Permission granted to reproduce for educational use only. The Thoracic Cage • sternum – manubrium – body of the sternum – xiphoid process • ribs – true ribs – false ribs – floating ribs © Goodheart-Willcox Co., Inc. Permission granted to reproduce for educational use only. Review and Assessment True or False? 1. All ribs are true ribs. 2. The facial bones surround the brain. 3. The sphenoid bone is part of the cranium. 4. There are 4 regions in the spine. 5. Intervertebral discs allow spinal flexibility. © Goodheart-Willcox Co., Inc. Permission granted to reproduce for educational use only. Chapter 4: The Skeletal System Lesson 4.3 The Appendicular Skeleton The Upper Extremity • the shoulder complex – scapula – clavicle • the arm – humerus – radius – ulna © Goodheart-Willcox Co., Inc. Permission granted to reproduce for educational use only. The Upper Extremity • the wrist and hand – carpals (8) – metacarpals (5) – phalanges (14) © Goodheart-Willcox Co., Inc. Permission granted to reproduce for educational use only. The Lower Extremity • the pelvic girdle – ilium – ischium – pubis • the leg – – – – femur tibia fibula patella © Goodheart-Willcox Co., Inc. Permission granted to reproduce for educational use only. The Lower Extremity • the ankle and foot – tarsals (7) – metatarsals (5) – phalanges (14) © Goodheart-Willcox Co., Inc. Permission granted to reproduce for educational use only. Review and Assessment Fill in the blanks with: foot, shoulder complex, humerus, or pelvic girdle. 1. The proximal bone of the arm is the _______________. 2. The tarsals are found in the _______________. 3. The scapula and clavicle make up the _______________. 4. The ilium is part of the _______________. © Goodheart-Willcox Co., Inc. Permission granted to reproduce for educational use only. Chapter 4: The Skeletal System Lesson 4.2 The Axial Skeleton The Axial Skeleton • the skull • the vertebral column • the thoracic cage © Goodheart-Willcox Co., Inc. Permission granted to reproduce for educational use only. The Axial Skeleton © Goodheart-Willcox Co., Inc. Permission granted to reproduce for educational use only. The Skull • the cranium – surround the brain • the facial bones – protect the front of the head © Goodheart-Willcox Co., Inc. Permission granted to reproduce for educational use only. The Cranium • • • • • • frontal bone parietal bones (2) temporal bones (2) occipital bones (2) ethmoid bone sphenoid bone © Goodheart-Willcox Co., Inc. Permission granted to reproduce for educational use only. The Facial Bones • • • • • • • • maxillary bones (2) palatine bones (2) zygomatic bones (2) lacrimal bones (2) nasal bones (2) vomer inferior concha bones (2) mandible © Goodheart-Willcox Co., Inc. Permission granted to reproduce for educational use only. The Cranial and Facial Bones © Goodheart-Willcox Co., Inc. Permission granted to reproduce for educational use only. The Vertebral Column • regions of the spine – – – – – cervical thoracic lumbar sacrum coccyx • curves of the spine – – – – cervical curve thoracic curve lumbar curve sacral curve © Goodheart-Willcox Co., Inc. Permission granted to reproduce for educational use only. Structures of the Vertebrae • • • • • the vertebral body the vertebral arch the transverse processes the spinous process the superior and inferior articular processes © Goodheart-Willcox Co., Inc. Permission granted to reproduce for educational use only. Structures of the Vertebrae © Goodheart-Willcox Co., Inc. Permission granted to reproduce for educational use only. Abnormal Spinal Curvatures • lordosis • kyphosis • scoliosis © Goodheart-Willcox Co., Inc. Permission granted to reproduce for educational use only. The Intervertebral Discs • located between vertebrae • shock absorbers • allow flexibility © Goodheart-Willcox Co., Inc. Permission granted to reproduce for educational use only. The Thoracic Cage • sternum – manubrium – body of the sternum – xiphoid process • ribs – true ribs – false ribs – floating ribs © Goodheart-Willcox Co., Inc. Permission granted to reproduce for educational use only. Review and Assessment True or False? 1. All ribs are true ribs. 2. The facial bones surround the brain. 3. The sphenoid bone is part of the cranium. 4. There are 4 regions in the spine. 5. Intervertebral discs allow spinal flexibility. © Goodheart-Willcox Co., Inc. Permission granted to reproduce for educational use only. Chapter 4: The Skeletal System Lesson 4.3 The Appendicular Skeleton The Upper Extremity • the shoulder complex – scapula – clavicle • the arm – humerus – radius – ulna © Goodheart-Willcox Co., Inc. Permission granted to reproduce for educational use only. The Upper Extremity • the wrist and hand – carpals (8) – metacarpals (5) – phalanges (14) © Goodheart-Willcox Co., Inc. Permission granted to reproduce for educational use only. The Lower Extremity • the pelvic girdle – ilium – ischium – pubis • the leg – – – – femur tibia fibula patella © Goodheart-Willcox Co., Inc. Permission granted to reproduce for educational use only. The Lower Extremity • the ankle and foot – tarsals (7) – metatarsals (5) – phalanges (14) © Goodheart-Willcox Co., Inc. Permission granted to reproduce for educational use only. Review and Assessment Fill in the blanks with: foot, shoulder complex, humerus, or pelvic girdle. 1. The proximal bone of the arm is the _______________. 2. The tarsals are found in the _______________. 3. The scapula and clavicle make up the _______________. 4. The ilium is part of the _______________. © Goodheart-Willcox Co., Inc. Permission granted to reproduce for educational use only.