Anatomy For Beginners - Movement Worksheet 4i425d

Name: _____________________________________ Class: ________________ Date: ____________

Anatomy For Beginners Lesson 1: Movement

1. List three functions of skin, the largest organ in the human body.

2. Only a tiny layer of skin (1/10th of a millimeter) is growing. What is the rest made of?

3. Describe how the shape of muscles varies between the abdominal area and the extremities.

4. What happens to the length of the muscle as the model flexes his bicep?

5. Anatomists used to believe muscles were like springs. Describe what actually occurs inside the muscle itself as it contracts.

6. Tendons connect _____________ to _____________.

7. Each t has a pair of opposing muscles. In the example of the forearm, wrist, and hand, what movement does the flexor muscles produce? The extensors?

8. What is the largest muscle in the human body?

9. Why are the bones and muscles of the legs so much larger than the upper extremities?

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Name: _____________________________________ Class: ________________ Date: ____________ 10. Label the trabeculae in the opened femur below. What is the purpose of the trabeculae?

11. Ligaments connect ____________ to _____________. 12. Explain how cartilage minimizes friction at a t between two bones.

13. What is osteoarthritis?

14. The patella is a sesamoid bone. What is unusual about the location of bones like this?

15. Label the patellar tendon, cruciate ligaments (2), and meniscus on the knee diagram below.

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Name: _____________________________________ Class: ________________ Date: ____________ 16. Why is it so difficult for Dr. von Hagans to move the lower leg by himself?

17. Brain is described as having the same consistency as Fromage frais. What happens when it is dropped?

18. Label the cell bodies, dendrites, and axons in the brain tissue slide below.

19. What function is each of these regions of the brain associated with? a. Side – b. Back – c. Front – d. Cerebellum – e. Stem – 20. Identify the cortex (grey matter), the medulla (white matter), and the corpus callosum on the slice of brain.

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Name: _____________________________________ Class: ________________ Date: ____________ 21. What is contained within the cortex? What is in the medulla?

22. Is the spinal cord considered part of the central or peripheral nervous system?

23. What happens if the spinal cord is cut?

24. Where does the spinal cord end?

25. What side of the spinal column do the motor fibers exit? The sensory fibers?

26. Peripheral nerves are described as mixed. Explain what this means.

Questions 27. How long does it take for brain tissue to begin to die following the loss of blood?

28. What causes the “pins and needles” sensation when a foot or hand “falls asleep?”

29. What happens differently to cause a quadriplegic versus a paraplegic?

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