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The Axial Skeleton Helllllp!!??

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The Axial Skeleton Helllllp!!??

Postby michelle4 » Fri Feb 22, 2008 4:47 am

what bone is single irregular bat shaped bone forming part of the cranial floor i have looked in my book and have found several answers do not know which is correct ethmoid or sphenoid or is it both
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Postby MichaelXY » Fri Feb 22, 2008 5:25 am

You need to look at the floor of the cranial cavity from the above view. One more hint. The bone helps form the base of the cranium.
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Postby raghda » Fri Feb 22, 2008 3:35 pm

I think it is the sphenoid bone as it has wings .sometimes we discribe it as butterfly-shaped
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Re:

Postby MichaelXY » Sat Feb 23, 2008 12:15 am

raghda wrote:I think it is the sphenoid bone as it has wings .sometimes we discribe it as butterfly-shaped


I think it is more helpful to assist a person in doing their work than to just answer the question for them. For example: I provided hints that should have led the person to the correct answer. It is a diservice to the person seeking help, to just give them the answer. They will learn more by taking hints provided by us, and using this info as a tool to guide them. If your intent is to demonstrate your vast knowledge, then perhaps you may consider writing an article and posting it in the article section. I am not a mod, so what I say really has little significance, but this is my opinion.
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Postby michelle4 » Sat Feb 23, 2008 5:41 am

thank you i also feel the same it would have done me no good if u would have just givin me the answer thats not helping me learn anything so thxs
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Postby MichaelXY » Sat Feb 23, 2008 6:56 am

I think it is admirable that you feel that way, and if it make you feel any better, I found the skeletal system to be one of the most hardest to learn in anatomy class. With that said, you are getting through the roughest part.
Best of luck.
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Postby mcar » Sat Feb 23, 2008 12:49 pm

Yes, the skeletal system was full of memorization when it comes to the different bones.
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Re: The Axial Skeleton Helllllp!!??

Postby Revenged » Mon Feb 25, 2008 3:53 pm

i'll give some background info - you don't normally get the basic important information explained clearly from anatomy textbooks.

the main importance of the sphenoid bone that the pituitary gland lies over the sphenoid bone.

the other important things are the holes in the base of the skull is important.

the spheniod bone contains:

1) the internal carotid canal - containing the the major artery that supplies blood to the brain

2) three foramen - foramen ovale, foramen spinosum and foramen rotundem containing the artery that supplies the skull (middle meningeal artery) and two branches of the trigeminal nerve (nerve that innervates the face).

3) the optic canal and superior orbital fissure. the cranial nerves that move the eye muscles (abducent, occulomotor and trochlear nerves), the nerve that supplies the eye (optic nerve) and the blood vessels to the eye (opthalmic artery - branch of internal carotid artery) travel through these.


the ethmoid bone forms the part of the eye socket and parts of the nose.

it also forms a small part of the cranial base as it forms the top bones of the nose.

if you stuck two penils up your nose and wacked them on the table you would have to crush the relatively weak ethmoid bone full of holes before they enter your brain.

the reason for the holes in the bone is that the olfactory nerve travels through holes in the ethmoid bone and is responsible for smell.

the ethrmoid bone also contains the crista galli - a protrusion of the bone that connects to the falx cerebri (the portion of dura matter that separates the two hemispheres of the brain.

hope that clarifies things.
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Re: The Axial Skeleton Helllllp!!??

Postby ahm_k1 » Fri Mar 21, 2008 3:17 pm

Revenged wrote:relatively weak ethmoid bone full of holes before they enter your brain.

the reason for the holes in the bone is that the olfactory nerve travels through holes in the ethmoid bone and is responsible for smell.

.

Wow this helped a lot to memorize the anatomy classes and remind me also whenever u see a cadever and the skull bones with out any fleshy parts u mainly found the cribriform plate of ethmoid bone totally damaged ...
Hope u all the best :)
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Re: The Axial Skeleton Helllllp!!??

Postby ussmcfaul » Fri Mar 21, 2008 10:04 pm

The person asked the answer to the question, not how to figure it out for him/herself. If someone asks a question, expect it to be answered. While ultimately the person may have found it helpful to give him/her a clue rather than the actual answer, the person did not ask for a clue, he/she asked for the answer. I found the comment to the person who gave the anwer to be rather rude.
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Postby MichaelXY » Fri Mar 21, 2008 10:55 pm

I guess this means that you will be canceling your membership to my fan club?
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Re: The Axial Skeleton Helllllp!!??

Postby canalon » Sat Mar 22, 2008 1:06 am

ussmcfaul wrote:The person asked the answer to the question, not how to figure it out for him/herself. If someone asks a question, expect it to be answered. While ultimately the person may have found it helpful to give him/her a clue rather than the actual answer, the person did not ask for a clue, he/she asked for the answer. I found the comment to the person who gave the anwer to be rather rude.


Because the policy on this forum is that we do not do someone else's homework. But giving a clue as MichaelXY did will help the poster find the answer by itself. And this policy is a bit older than your membership, so I suggest you learn to live with it.
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