Class Notes (836,814)
Canada (509,910)
Physiology (1,062)
Tom Stavraky (262)
Lecture

somatosensory system II

1 Page
132 Views
Unlock Document

Department
Physiology
Course
Physiology 3120
Professor
Tom Stavraky
Semester
Fall

Description
Human Physiology Friday, October 23, 2009 Somatosensory System II • Somatosensory cortex located in the post-central gyrus (posterior/caudal to the central sulcus) • Properties (each hemisphere is organized this way) (1) Somatotopic organization  Leg (medial)  trunk  arm  face (lateral)  This organizational structure is called a homunculus (“little man”) • Distorted because of differences in density of receptors in a certain body part (highest in fingers & lips); more sensitive areas take up more cerebral surface area  Understanding of this organization based on. . . • Recording from population of neurons/single neuron o Stimulation of a nerve produces an evoked potential in the brain (measured with an electrode in the brain) • Lesions (several different methods; strokes in vivo) o Lesions of certain brain areas produce certain deficits, allowing us to understand the function of that brain area
More Less

Related notes for Physiology 3120

Log In


OR

Join OneClass

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

Sign up

Join to view


OR

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.


Submit