The Brain of Humans

Damage to these areas is life-threatening, whereas damage to the cortical areas may impair function, only when is less likely to be life-threatening.

19.12 In the split-brain technique, the corpus callosum connecting the two hemispheres is split (Zaidel, 2004). Patients who have had this part can still per variate many task normally, but suffer from some deficits. They have some trouble with communicate commands and learning new skills. Their recent memory is poor, as is their topographic memory and new verbal memory. Because of the memory deficits, they don't tend to read, confront TV or watch movies. These patients also do non dream, and have blunted emotional responses. Many report having small(a) control over their left hand.

21.4 The lumbar puncture is commonly d ane above or at a lower place the fourth lumbar vertebra (Applegate, 2000, 170). This is the site of choice because the spinal anaesthesia cord ends at the clenched fist lumbar vertebra, and entering the subarachnoid space above or below the fourth lumbar vertebra ensures that there is no risk of change the spinal cord with the needle.

21.5 There are two enlargements of the spinal cord, one in the cervical neck of the woods and one in the lumbar region (Applegate, 2000, 170).

The enlargement in the cervical region gives rise to the nerves which supply the upper extremities, and the enlargement in the lumbar region gives rise to t

24.29 Color blindness occurs because of an absence or deficiency of one or more of the visual pigments in the cones, so that the psyche cannot distinguish certain wiles (Applegate, 2000, 193). The most common form of color blindness ir red/green color blindness in which the person lacks red pigment and consequently cannot distinguish red from green.

R bosomrse, F. (2004). Primary lateral sclerosis. Retrieved at:

hypertext transfer protocol://cosprints.ecs.soton.uk/archives.pdf

24.18 The decently optic nerve carries only fibers from the right eye. The right optic tract carries fibers from the lateral portion of the right eye and from the medial portion of the left eye (Applegate, 2000, 193).

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