Biological Concepts — Lab 8 online
HUMAN ANATOMY C:
Skeleton; excretion; nervous system
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Instructions: Study all the visual information in this online lab, plus the accompanying explanations. Be prepared to answer a few "check-in" questions to show that you were paying attention. |
SKELETON
EXCRETORY SYSTEM
NERVOUS SYSTEM
Neurons
Sodium-potassium pump in action:
Vertebrate brains
Human brain
Saggital
Saggital
Lobes
Lobes in situ
Cortical areas
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These "homunculus" diagrams are based on experimental recordings of anesthetized subjects. The "motor homunculus" was determined by electrical stimulation of locations in the primary motor cortex to see what muscles responded. Notice that the lips and fingers are over-represented, indicating fine motor control of those structures. The "sensory homunculus" was determined by gently stroking parts of the body surface to see what locations in the primary somatosensory cortex responded electrically. Notice that the face and hands, which are very sensitive, are over-represented, while the body trunk is relatively insensitive.  Autonomic nervous system  Sense organs: Human Ear   Sense organs: Vertebrate Eye 
· · · • • • • • · · · Click here for the Check-In questions —— Rev. Aug. 2020 —— |