PSYC-251 Lecture Notes - Lecture 3: Pituitary Gland, Grey Matter, Pineal Gland
21 Mar 2017
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If you take an x-ray, you can see the skull and not much else. The pi(cid:374)eal gla(cid:374)d so(cid:373)eti(cid:373)es (cid:272)al(cid:272)ifies a(cid:374)d so it"ll sho(cid:449) up o(cid:374) x-ray. If it"s shifted to o(cid:374)e side or another, then that means there might be a mass or something. You can see air on x-rays so people would put it in the ventricles and get some imaging. Angiography let you stick things up the blood vessels and get a picture of those you could look at the shift of the vessels from a mass or obstructed/torn vessels from stroke. This allowed us to get cross-sections of the brain and it was huge because we could see inside the brain accurately without injecting the arteries or ventricles. The(cid:374) there"s mri, (cid:449)hi(cid:272)h uses the (cid:373)ag(cid:374)eti(cid:272) properties of a proto(cid:374). Our proto(cid:374)s (cid:271)eha(cid:448)e like magnets and the mri sends out a magnetic signal and listens for responses and puts that together to get an image.
