hi

Question

human physiology:

what is a cerebral lobe not visible in an ordinary external inspection

what is a vein in the dura mater roughly parallel to the longitudinal fissure

what is the portion of the thalamus that passes through the third ventricle. I think is is the hypothalamus, but i'm not sure

what is the white matter tracts in the ventral portion of the midbrain.
Is is the spinothalamic tract?

can you please help me with these questions. I spent an hour looking it up in the internet, but i can't find the answer. please, These questions are about the brain.

I'm not sure what you mean by "external inspection." If this is from outside the head, none of the lobes are visible. In viewing the brain itself, all lobes of the cerebrum are visible, but only the occipital lobe is not clearly designated by sulci.

For your second question, since this is not my main area of expertise, I searched Google under the key words "brain longitudinal fissure vein" to get these possible sources:

http://www.bartleby.com/107/170.html
http://www.bartleby.com/107/193.html

For the third question, I used key words "thalamus third ventricle":

http://www.medfriendly.com/thirdventricle.html#whatisit
(Broken Link Removed)

I searched for the "spinothalamic tract" to get these sources:

http://en.wikipedia.org/wiki/Spinothalamic_tract
http://en.wikipedia.org/wiki/Anterior_spinothalamic_tract
http://hsc.unm.edu/touch/datasets/datasets/spinothalmic/spinothalmic.shtml
(Broken Link Removed)

I hope this helps. Thanks for asking.

long term effect of a permanent move from sea level to a high altitude area ?

Answer 1

THERE ARE FOUR LOBES VISIBLE: FRONTAL, PARIETAL, OCCIPITAL AND TEMPORAL. Insula is grouped with the lobes but is burried within a fissure between the temporal and parietal lobes. Your answer is Insula.

Answer 2

The vein in the dura mater is called the 'dural venous sinus'.

Answer 3

All the answers are in the book, I am actually doing

I am actually workiung on the exact same questions right now.I thought the answer was "vein of Galen" for the Vein in the dura mater roughly parallel to the longitudal fissure. I'm still looking.p.s. read the chapter.

Answer 4

I am actually workiung on the exact same questions right now.I thought the answer was "vein of Galen" for the Vein in the dura mater roughly parallel to the longitudal fissure. I'm still looking.p.s. read the chapter.