Science Starter 1. What are some differences between the male/female skeleton? 2. Who has more bones: a baby or an elderly person? 3. Which bones can be used to calculate the height of a skeleton? Today’s Agenda • Science Starter • Skeleton & Skull Notes • Skeleton & Skull Labeling • WebQuest Investigation • Exit Quiz Unit 4: SKELETAL & MUSCULAR SYSTEM I. ORGANIZATION • About 206 bones • 2 Main Divisions – Axial & Appendicular II. Axial Skeleton • Head, neck, trunk • Skull • Hyoid Bone • Vertebral Column • Thoracic Cage (ribs) • Sternum III. Appendicular Skeleton • Limbs & Bones that connect to the -Pectoral Girdle (scapula, clavicle, arms) -Pelvic Girdle (coxal bones, legs) IV. BONES OF THE SKULL 1. Frontal 2. Parietal 3. Occipital 4. Temporal 5. Sphenoid 6. Maxilla 7. Mandible 8. Zygomatic - Sphenoid Bone Names for its shape - a butterfly! • Suture - refers to any connection between large bones (in fetal skulls, these are called fontanels) • Fissure - any wide gap between bones Fontanels are “soft spots” on an infant’s skull V. TOPOGRAPHY OF THE SKULL • Foramen - refers to any opening in the skull, nerves and blood vessels leave this opening to supply the face Foramen Magnum Mental Foramen Foramen Magnum * Assignment: Skeleton & Skull Labeling Skeleton & Skull Labeling • Label the skeleton & skull using the book (pg 125-130) • When you finish, grab a computer and partner up with someone else who is finished in class (groups of 4) • Go to mrhoutzscience.weebly.com & click on the homepage links Figure 6.10 Figure 6.10 WebQuest Investigation • Complete the sections using the links on my website • When you get to the investigation part, pick a set of bones and assemble your skeleton • Complete this activity in class, today! Exit Quiz 2 3 Label the skeleton with 4 the appropriate 5 vocabulary 1. What is the difference between axis and appendicular? 6