quiz 3
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The Central Nervous system consists of______?
brain and spinal cord
Major structures of the _______ include the two cerebral hemispheres, the thalamus, and the hypothalamus.
forebrain
a gyrus is:
• ridge in cerebral cortex - area between two sulci
What are the four lobe of the cerebral cortex?
• frontal • parietal • occipital • temporal
the prefrontal cortex:
• plan and organize • impulse control • adjusting behavior in response to rewards and punishments • decision making
after a serious car accident, your friend can no longer recognize objects that she sees. Given your knowledge of the brain, you know that she must have her:
inferior temporal cortex
the _____ is a thick band of fibers that transmits information between the cerebral hemispheres.
corpus callosum
in rare cases, surgeons have to cut the corpus callosum to help treat severe, uncontrolled epileptic seizures. Research on these cases has shown that severing the corpus callosum:
• right and left hemisphere cant communicate well • left= language • right= visual
the _____ is a small structure below the cortex that controls emotion and motivated behaviors such as eating, drinking, and sexual activity.
hypothalamus
Parts of the midbrain
• superior colliculi • inferior colliculi • substania nigra • ventral tegmental area
the cerebellum:
• Refines movement initiated by motor cortex by controlling their speed, intensity, and direction • part of hindbrain • 2nd most distinctive-appearing structure • On the back of the brain stem, wrinkled and divided in middle • “little brain”
organization of the spinal cord:
just the opposite of the brain, with white matter on outside and gray matter in the interior
in the spinal cord, the white matter consists of:
axons
your dog nudges you from sleep and you reach out to pet the dog. feeling the dog is transmitted through______, while petting the dog is transmitted via_______.
sensory neurons, motor neurons
the delicate structures in the brain are protected by:
• the three-layers of the meninges • cerebrospinal fluid • blood-brain barrier
the somatic nervous system consists of the:
sensory and motor nerves
The ______ nervous system controls smooth muscles, internal organs, and glands. It consists of the sympathetic and parasympathetic nervous systems
autonomic nervous system
on the day of the exam, your heart races, your breathing is ragged and elevated, and you sweat more than usual. This is most likely due to the activation of the _________ nervous system
sympathetic
what is the correct order of the four stages of development of the nervous system?
• cell proliferation • migration • circuit formation • circuit pruning
neural plasticity refers to the:
ability to be modified