C. VESTIGIAL STRUCTURES DIRECTIONS: Read the list of vestigial structures found in humans. Then hypothesize a possible function for each structure and explain the reason why it is considered vestigial. Why is it considered vestigial? Structure Possible Function Appendix Coccyx (tailbone) Wisdom teeth
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- a. List three similarities between the pig internal anatomy and human internal anatomy. b. List three differences between the pig internal anatomy and human internal anatomy.Define epimere, hypomere, and the relation to ventral and dorsal rami.WER Body Fill-in (give the correct term for each item below; hint: remember to L consider anatomical position as needed for determining directional terms 1. The head is __ to the feet. spie 2. The liver is part of the _?__ system. 3. A leg amputation is likely to involve a _?__ cut, or section, through bone. 4. My lower back, or _?__, is sore. 5. The first finger is __?__ to the hand. 6. The popliteal vein is found in the _?__. 7. The heart is __ to the right lung. 8. The shoulder is _?_ to the elbow. 9. The skin is_?_ relative to the skeleton. 10. Adipose tissue is often just _?_ to the skin. 11. An occipital scar is on the back of the _?__ Sketch (make a rough sketch of a human figure in the position indicated by the anatomical compass rosette and label) The ana Suc tem ove teb spec be s BE
- Compare the nuchal ligament of the horse, ox, sheep, goat and pig.The adoption of bipedalism involved profound changes in the vertebral column and musculature due to the altered loading conditions and motion requirements. Thoroughly discuss the structural adaptations and changes in the vertebral column and musculature of birds and humans that allow bipedal posture.Ch.8 (Axial Skeleton) Key Terms Please refer to word bank to fill in answers. Some words may be used more than once or not at all. Anterior sacral foramen Aveolar process of mandible Aveolar process of maxilla Auditory ossicles Body of mandible Body of sternum Body of vertebra C1 vertebra C2 vertebra C3 vertebra C4 vertebra C5 vertebra C6 vertebra C7 vertebra Cervical vertebrae Coccyx Condylar process Coronal suture Coronoid process Costal facet Cribriform foramina Cribriform plate Crista galli Ethmoid Foramen magnum Frontal bone Head Hyoid bone Hypophyseal fossa Inferior articular facet Inferior articular process Inferior nasal concha Inferior orbital fissure Infraorbital foramen Internal auditory canal Intervertebral foramen Jugular notch L1 vertebra L2 vertebra L3 vertebra L4 vertebra L5 vertebra Lacrimal bone Lambdoid suture Lumbar vertebrae Mandible Mandibular foramen Mandibular fossa Manubrium Maxilla Median sacral crest Mental foramen Middle nasal concha Nasal bone…
- Ch.8 (Axial Skeleton) Key Terms Please refer to word bank to fill in answers. Some words may be used more than once or not at all. Anterior sacral foramen Aveolar process of mandible Aveolar process of maxilla Auditory ossicles Body of mandible Body of sternum Body of vertebra C1 vertebra C2 vertebra C3 vertebra C4 vertebra C5 vertebra C6 vertebra C7 vertebra Cervical vertebrae Coccyx Condylar process Coronal suture Coronoid process Costal facet Cribriform foramina Cribriform plate Crista galli Ethmoid Foramen magnum Frontal bone Head Hyoid bone Hypophyseal fossa Inferior articular facet Inferior articular process Inferior nasal concha Inferior orbital fissure Infraorbital foramen Internal auditory canal Intervertebral foramen Jugular notch L1 vertebra L2 vertebra L3 vertebra L4 vertebra L5 vertebra Lacrimal bone Lambdoid suture Lumbar vertebrae Mandible Mandibular foramen Mandibular fossa Manubrium Maxilla Median sacral crest Mental foramen Middle nasal concha Nasal bone Nasal…PART 1. HOMOLOGOUS STRUCTURES 1. Carefully examine the drawings of the bones shown in Figure 1. Look for similarities among the various animals. -humerus -uha -radius -carpal -metacarpal crocodie phalanges human cat bird bat Figure 1.Choose the accurate statement(s) regarding the types of fibrous joints. (Check all that apply.) Check All That Apply The attachment of a tooth to its socket is classified as a joint called a syndesmosis. In syndesmosis joints, the fibers are longer and the attached bones are more movable. In gomphoses joints, two bones are linked by cartilage. In sutures and gomphoses, the fibers are very short and allow for little or no movement. Sutures are immovable or only slightly movable fibrous joints that closely bind the bones of the skull to each other.
- c. Suggest a possible function for each structure and explain why it became vestigial. Record your answers in the table. Table 1. Structure Probable Function Why Vestigial? appendix coccyx (tail bones) muscles that move ears muscles that make hair stand up little toe wisdom teethName a structure that is located cranial to the abdominal cavity caudal to the neck and dorsal to the stetnumDescribe the functions of the human skeleton and link thier functions to specific structures.