190 Chapter Nine The Skeletal System: Appendicular Skeleton 21. List three of th
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190 Chapter Nine The Skeletal System: Appendicular Skeleton 21. List three of the foatures that help differentiate a male pelvis from a female pelvis Male Pelvis Female Pelvis b. unction as the patella in the lower limb?(Hint: The patella's function is to act as a the anterior surface of the thigh farther away from the center of rotation of the joint in order to give 22. What bone or bony process of the upper limb serves the same f t forces the tendons the muscles a greater mechanical advantage-greater leverage.) 23. Explain why one end of the clavicle is called the sternal end, and the other is called the acromial end. Can You Synthesize What You've Learned? 24. What bony landmark of the upper limb is used as a reference point for locating the ulnar nerve at the elbow?Explanation / Answer
20) The mneumoics usually describe the position of the tarsal bones from superior to inferior, medial to lateral in a right foot: The Cab in New Mexico Is Land Cruiser. (Talus, calcaneum, navicular, medial cuneiform, intermediate cuneiform, lateral cuneiform, cuboid).
21) The features of male pelvis are: pelvic inlet-smaller and heart shaped, acetabulum-large and faces laterally, pubic arch-less than 90 degree.
The features of female pelvis are: pelvic inlet-larger and more oval, acetabulum-small and faces anteriorly, pubic arch-greater than 90 degree.
22) Greater tubercle in the humerus acts as lever in upper limb.
23) The medial side of the clavicle is called as the sternal end as it forms a joint along with sternum known as sternoclavicular joint and the lateral end is called as the acromion end as it forms a joint along with acromion process of the scapula known as the acromioclavicular joint.
24) Posterior aspect of elbow joint in between medial epicondyle and olecranon process of the elbow joint is the landmark for palpating ulnar nerve.
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