PSYC 355 - Midterm Preparation
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20 Terms
How did Dr. Wilder Penfield map the different areas of the brain?
He used sensitive electrical probes on patients who were awake during surgery and asked patients what they were experiencing as he moved the probe to different brain areas
Which fissure separates the two hemispheres of the brain?
The longitudinal fissure
Which fissure separates the temporal lobe from the frontal and parietal lobes?
The lateral fissure
Which part of the nervous system contains the nerves that enter and exit from the spinal cord?
The peripheral nervous system (PNS)
What is the difference between an afferent and efferent signal?
An afferent signal arrives from the skin and goes towards the spinal cord (it is a sensory signal), whereas an efferent signal arrives from the spinal cord and goes towards a particular muscle (a motor signal).
Another simpler explanation is that an afferent signal is information arriving to the CNS, whereas an efferent signal is leaving the CNS.
Anatomically, structures towards the back part of the brain are _____, whereas parts of the brain that are more forward are _____.
caudal, rostral
Anatomically, brain structures closer to the top of the head are considered _____, and those below are _____.
dorsal, ventral
The somatic nervous system belongs to _____.
the peripheral nervous system (PNS)
The autonomic nervous system belongs to _____.
the peripheral nervous system (PNS)
The _____ is composed of the sensory and motor neurons that allow you to consciously move and receive sensory information from the outside world.
somatic nervous system
The _____ is responsible for keeping you alive without conscious thought — for instance, it regulates blood pressure, heart rate, and digestion.
automatic nervous system
Which lobe of the cortex processes skin sense?
parietal
Grey matter mainly consists of
neuronal cell bodies
Which lobe of the cortex processes vision?
occipital
The chambers that contain cerebrospinal fluid are…
ventricles
Controlled motor movements are carried out by which nervous system?
somatic nervous system
The lower part of the hindbrain important for breathing and heart rate is called the…
Medulla
The folds of the cerebral cortex are called…
Convolutions
Where is the medulla located?
in the hindbrain