Textbook Notes (369,067)
Canada (162,366)
Psychology (9,699)
PSYB65H3 (479)
Ted Petit (185)
Chapter 14

PSYB65 - Chapter 14 - Sep 20-Oct 4, 2010

6 Pages

Course Code
Ted Petit

This preview shows pages 1 and half of page 2. Sign up to view the full 6 pages of the document.
Chapter 14 Human Brain Damage Module 14.1: Causes of Brain Damage Tumors (Neoplasms) - Tumor: mass of new and abnormal tissue that is not physiologically beneficial to its surrounding structure. Describe tumors as space-occupying lesions (= they are foreign objects that cause damage to the central nervous system (CNS) by putting pressure on it and occupying space that is normally occupied by the CNS. Differ from one another (what type of cell give rise to tumor, how rapidly they grow, whether they infiltrate and destroy the surrounding neural tissue or remain relatively encapsulated, and how likely they are to recur if they are removed) - 4 major types of brain tumors: those that originate from glial cells, the meninges, nervous tissue, or other parts of the body already infected with a tumor Tumors arising from glial cells (most common type) - Gliomas - tumors that arise from glial cells Astrocytomas Glioblastoma Medulloblastoma (arise from the growth of (also called a primitive astrocytes) neuroectodermal tumor) Major type Major type Less common Tend not to grow very quickly Grow quickly Are rarely malignant Highly malignant Highly malignant infiltrating tumor - Some astrocytomas are - Tend to infiltrate the - Tend to form around the relatively well surrounding tissues, cerebellum and brainstem encapsulated, so the making them very difficult early in life damage that they cause to excise surgically - Prognosis for individuals tends to come from without the removal of the who develop compression of the relatively healthy Medulloblastoma tends to surrounding tissues surrounding neural tissue be relatively poor - Slow-growing benign tumors can be extremely dangerous if they start to grow in relatively inaccessible locations. When surgical treatment is not Chemotherapy Chemotherapy practical, Chemotherapy is typically used Tumors arising from the Meninges - Meningiomas tumors that grow out of (and remain attacched to) the meninges Because they grow out of tissues found outside of the CNS, meningiomas tend to be reasonably well encapsulated. source.doc 1 www.notesolution.com
More Less
Unlock Document

Only pages 1 and half of page 2 are available for preview. Some parts have been intentionally blurred.

Unlock Document
You're Reading a Preview

Unlock to view full version

Unlock Document

Log In


Join OneClass

Access over 10 million pages of study
documents for 1.3 million courses.

Sign up

Join to view


By registering, I agree to the Terms and Privacy Policies
Already have an account?
Just a few more details

So we can recommend you notes for your school.

Reset Password

Please enter below the email address you registered with and we will send you a link to reset your password.

Add your courses

Get notes from the top students in your class.