Interactive Skeleton Scavenger Hunt

Information Box: How many bones do you have in one of your hands (including your wrist)? 27 bones

Floating Ribs

Floating Ribs

3 parts of Sternum:

Manubrium

Sternal Body

Kaleela L. 1st block

Xiphoid Process

= 7 vertebrae

= 12 vertebrae

= 5 vertebrae

= 5 fused vertebrae

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= 4 fused vertebrae

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------------------------------Total: 33 when a person is first born; when a person becomes an adult there are only 24 because the buttom end of the spine fuse together.

Conclusion Questions #1-3

• What are the smallest bones of the body on your model? What are they named and where are these bones found? The smallest bones are in the stapes. The stapes, the malleus, and the incus are collectively known as ossicles. They are found in the ear.
• Which bone(s) of the human body differ in males and females? Explain the difference. The pelvis bone differs in males and females because the female pelvis is wider and shorter than men’s pelvis. The pelvis inlet of a woman is generally wider and larger than a man’s because it facilitates childbirth.
• The human skeleton is composed of two divisions- the axial skeleton and the appendicular skeleton. Explain the difference between these two? The axial skeleton are the bones of the head and trunk (or any bone lying along a central axis, or midline) of your body. The appendicular skeleton is mainly composed of the bones in your appendages, or limbs.

Conclusion Questions Cont. #4

• On the list of bones from Step 3, (found on the Skeletal System organizer) write AP next to a bone if it is part of the appendicular skeleton and AX next to a bone if it is part of the axial skeleton. Labeled below.

1. Mandible- AX
2. Maxilla- AX
3. Zygomatic Process- AX
4. Frontal Bone- AX
5. Temporal Bone- AX
6. Occipital Bone- AX
7. Parietal Bone- AX
8. Sternum- AX
9. Radius- AP
10. Phalanges- AP
11. Rib Cage- AX
12. Tibia- AP
13. Fibula- AP
14. Vertebral Column(cervical- AX, thoracic- AX, lumbar- AX, sacrum- AX and coccyx- AX)
15. Scapula- AP
16. Carpals- AP
17. Metacarpals- AP
18. Ilium- AP
19. Pubis- AP
20. ischium- AP
21. Femur- AP
22. Tarsals- AP
23. Metatarsals- AP
24. Patella- AP
25. Clavicle- AP
26. Humerus- AP 27. Ulna- AP

Conclusion Questions #5-8

• Why are there sutures on the human skull? What does this tell you about the actual structure of the skull? There are sutures on the skull because sutures are what allow for growth of the brain and skull. This tells me that the actual structure of the skull is made up of several smaller bones that are connected together, not 1 large bone.
• What is the difference between a true rib, a false rib and a floating rib? A true rib is attached to the sternum directly by individual costal cartilages. A false rib is indirectly attached to the sternum attached by costal cartilage. A floating rib has no attachment to the sternum, is connected to the spine, and doesn’t reach the front of the body.
• A man was in a car accident and fractured cervical vertebrae, his femur and his 5th metatarsal. Explain his injuries to a “non-science” person. The man in the car accident fractured his neck, his thigh, and his little toe.
• What are five (5) main functions of the human skeletal system?

1. Support- bones are the body framework that provides shape and support the trunk and limbs.
2. Protection- bones surround organs
3. Movement- muscles pull bones
4. Storage- bones serve as a repository for minerals
5. Blood cell formation- red bone marrow is where the function of hematopoiesis occurs