BIO 270 LECTURE EXAM 2 JMU HYND
QUESTIONS AND CORRECT ANSWERS.
VERIFIED 2025/2026.
Astrocytes - ANS glue that holds neurons in place, helps maintain ionic concentration
Oligodendrocytes - ANS Myelin sheath of CNS
Microglia - ANS trashcans of brain, eat dead micro and neurons
ependymal - ANS lining of ventricles (brain)
schwann cells - ANS myelin sheath of PNS
Four types of glial cells - ANS astrocytes, oligodendrocytes, microglia, ependymal
blood brain barrier - ANS capillaries sealed with tight junctions to prevent bad stuff from
getting to the brain
parts of the forebrain - ANS diencephalon (thalamus and hypothalamus) and cerebrum (basal
nuclei and cerebral cortex)
1 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED.
, gyrus - ANS elevated folds of brain
sulcus - ANS depressed fold of brain
Broca's area of brain - ANS speaking ability, motor
Wernicke's area of brain - ANS Language comprehension, sensory
plasticity - ANS brain's ability to have other areas compensate for any damage if the damage
happens young enough
electroencephalogram (alpha and beta rhythm) - ANS EEG (brain test). Alpha- eyes closed.
Beta- eyes open.
seizure - ANS uncontrolled firing of neruons
small movement control - ANS Basal nuclei/ganglia with thalamus
thalamus job - ANS gets rid of extra sensory info that is not necessary to know
cerebrum job - ANS coordinating big subconscious movements (balance, posture)
hypothalamus job - ANS controls homeostasis
limbic system - ANS emotion, food, and sex
2 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED.
QUESTIONS AND CORRECT ANSWERS.
VERIFIED 2025/2026.
Astrocytes - ANS glue that holds neurons in place, helps maintain ionic concentration
Oligodendrocytes - ANS Myelin sheath of CNS
Microglia - ANS trashcans of brain, eat dead micro and neurons
ependymal - ANS lining of ventricles (brain)
schwann cells - ANS myelin sheath of PNS
Four types of glial cells - ANS astrocytes, oligodendrocytes, microglia, ependymal
blood brain barrier - ANS capillaries sealed with tight junctions to prevent bad stuff from
getting to the brain
parts of the forebrain - ANS diencephalon (thalamus and hypothalamus) and cerebrum (basal
nuclei and cerebral cortex)
1 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED.
, gyrus - ANS elevated folds of brain
sulcus - ANS depressed fold of brain
Broca's area of brain - ANS speaking ability, motor
Wernicke's area of brain - ANS Language comprehension, sensory
plasticity - ANS brain's ability to have other areas compensate for any damage if the damage
happens young enough
electroencephalogram (alpha and beta rhythm) - ANS EEG (brain test). Alpha- eyes closed.
Beta- eyes open.
seizure - ANS uncontrolled firing of neruons
small movement control - ANS Basal nuclei/ganglia with thalamus
thalamus job - ANS gets rid of extra sensory info that is not necessary to know
cerebrum job - ANS coordinating big subconscious movements (balance, posture)
hypothalamus job - ANS controls homeostasis
limbic system - ANS emotion, food, and sex
2 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED.
