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Main Boards => PowWow => Topic started by: Old York on October 05, 2008, 03:54:00 PM
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Any biologists/AP folks out there?
A deer has a shoulder blade (Scapula) which is attached to the leg bone (Humerous) which attaches to what?
Radius and Ulna?
Is their front foot our equivalent hand & wrist & finger nails?
I hear people say, aim right in back of the shoulder - er, what are they referring to? Deer don't have a "shoulder" like we do. Thanks
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Right behind the shoulder "muscle" if you will.
Or in the crease behind the front leg.
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(http://img.photobucket.com/albums/v77/Guru39/taxidermy/deeranatomy.jpg)
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I was just going to say that the shoulder "muscle" can be misleading because the bone (Humerus) takes a whole different line.
I would think the leg would be our radius. Our ulna is the "little" bone in our arms that make the pointing thing on our wrists. The "ulnar projection". That's the only way I can keep the two straight.
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Look at the skeleton above. The shoulder blade (scapula) is attached to a single bone, the equivelent of our upper arm (humerus) which attaches to two bones, the equivelent to our forearm (radius and ulna. Lower than that the bones fuse forming more leg and the foot is formed of bones equivelent to our fingers.
The actual shoulder of the deer, or other quadruped is way forward and higher placed than the spot nearly everybody calls the "shoulder", which is actually more of an elbow.
We should take a close look and see the difference.
If someone has access to a computer animated or better yet, some sort of real medical scan showing the bones and how they move when an animal walks.. I would love to see that.
I don't believe the shoulder moves near as much as we give it credit for when the animal is walking.
ChuckC
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Old York,what most refer to as the shoulder in a deer is about the same as the front quarter.It is the upper leg and the mass of muscles covering the scapula or shoulder blade. With archery gear,we are trying to avoid hitting the scapula and upper leg bone.See Guru's diagram.If you draw a line from the elbow,to a point about 3/4 of the way up the scapula,that would be the back edge of the tricep or back of the upper leg.Most aim just behind that line. We are just trying to get an arrow into the heart and lungs without risking hitting the scapula and humerus,which often will stop an arrow. ChuckC,the joint end of the scapula moves more than the upper,wide end.It moves forward to about a 45 degree angle but can go farther if the front leg is stretched way forward in a leap.It can rotate back to about a straight up and down position when the front leg is all the way to the rear.The wide end stays close to it's position beside the shoulder hump and the joint end of the scapula moves a lot more.I'm guessing the shoulder joint probably travels 6" or more,in a forward or back motion.
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Thanks Gents!
I've been taught to aim too far back & too low.
Instant gut shot and then I'd wonder why no blood, no deer.