SO. with the busy life still unrelenting, I have decided to post pics before its TOO late from the third lab - explorations of the arm bones, and their muscles.
A couple comments...
Rotator cuffs are awesome! Who would have thought a succession of so many muscles allowed the arm's wide array of movement
The humerus is not a funny bone!
although its name is humerus...
For the 99.9% of people who have ever awkwardly bumped their elbow to have a "funny tingle"
(more accurately it's NOT funny it's painful! or maybe my arm is unusual...) has not actually bumped the "elbow" but the medial (inside) epicondyle (bump) of the humerus (upper arm bone). By bumbing this bony projection, the Ulnar nerve gets pinched and sends a strange tingling sensation through the arm. I guess for kids it's funny, and at least there is some truth behind the colloquial name for the bone!
BUT don't get confused! the "bony part of the elbow" that you rest on a table or scrape when you fall is not the humerus, but part of the Ulna (a forearm bone). (the fancy name for this projection is Olecranon process)
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