Bio 270
Bio 270 Lecture Exam 2 JMU Hynd
Exam Questions & Answers
Astrocytes - glue that holds neurons in place, helps maintain ionic concentration
Oligodendrocytes - Myelin sheath of CNS
Microglia - trashcans of brain, eat dead micro and neurons
ependymal - lining of ventricles (brain)
schwann cells - myelin sheath of PNS
Four types of glial cells - astrocytes, oligodendrocytes, microglia, ependymal
blood brain barrier - capillaries sealed with tight junctions to prevent bad stuff from
getting to the brain
parts of the forebrain - diencephalon (thalamus and hypothalamus) and cerebrum (basal
nuclei and cerebral cortex)
gyrus - elevated folds of brain
sulcus - depressed fold of brain
Broca's area of brain - speaking ability, motor
Bio 270
, Bio 270
Wernicke's area of brain - Language comprehension, sensory
plasticity - brain's ability to have other areas compensate for any damage if the damage
happens young enough
electroencephalogram (alpha and beta rhythm) - EEG (brain test). Alpha- eyes closed.
Beta- eyes open.
seizure - uncontrolled firing of neruons
small movement control - Basal nuclei/ganglia with thalamus
thalamus job - gets rid of extra sensory info that is not necessary to know
cerebrum job - coordinating big subconscious movements (balance, posture)
hypothalamus job - controls homeostasis
limbic system - emotion, food, and sex
consolidation - converting short term to long term memory
working memory - fluid, interrelates various forms of memory
brain stem - medulla, pons, midbrain. continuous w/ spinal cord
Bio 270
Bio 270 Lecture Exam 2 JMU Hynd
Exam Questions & Answers
Astrocytes - glue that holds neurons in place, helps maintain ionic concentration
Oligodendrocytes - Myelin sheath of CNS
Microglia - trashcans of brain, eat dead micro and neurons
ependymal - lining of ventricles (brain)
schwann cells - myelin sheath of PNS
Four types of glial cells - astrocytes, oligodendrocytes, microglia, ependymal
blood brain barrier - capillaries sealed with tight junctions to prevent bad stuff from
getting to the brain
parts of the forebrain - diencephalon (thalamus and hypothalamus) and cerebrum (basal
nuclei and cerebral cortex)
gyrus - elevated folds of brain
sulcus - depressed fold of brain
Broca's area of brain - speaking ability, motor
Bio 270
, Bio 270
Wernicke's area of brain - Language comprehension, sensory
plasticity - brain's ability to have other areas compensate for any damage if the damage
happens young enough
electroencephalogram (alpha and beta rhythm) - EEG (brain test). Alpha- eyes closed.
Beta- eyes open.
seizure - uncontrolled firing of neruons
small movement control - Basal nuclei/ganglia with thalamus
thalamus job - gets rid of extra sensory info that is not necessary to know
cerebrum job - coordinating big subconscious movements (balance, posture)
hypothalamus job - controls homeostasis
limbic system - emotion, food, and sex
consolidation - converting short term to long term memory
working memory - fluid, interrelates various forms of memory
brain stem - medulla, pons, midbrain. continuous w/ spinal cord
Bio 270
