BIO 302: EXAM 1 UKY QUESTIONS AND COMPLETE ANSWERS

BIO 302: EXAM 1 UKY QUESTIONS AND
COMPLETE ANSWERS


Central Nervous System (CNS) - ANSWER brain and spinal cord




Cerebrum - ANSWER -largest division of the brain

-two hemispheres

-Latin: "the understanding"




Cerebral Cortex - ANSWER Outer most layer of gray matter making up the superficial aspect
of the cerebrum




Cerebellum - ANSWER Latin for little brain




Gyri - ANSWER Elevated ridges "winding" around the brain




Sulci - ANSWER Small grooves diving gyri




Central Sulci - ANSWER Divides frontal lobe from parietal lobe




Fissures - ANSWER Deep grooves generally dividing large regions lobes of the brain

,Frontal lobe - ANSWER -emotional regulation

-personality

-long-term memory




Temporal lobe - ANSWER -hearing

-organization

-memory




Parietal lobe - ANSWER -senses

-spatial awareness

-perception




Occipital lobe - ANSWER -processing

-integration/interpretation

-vision (looks like optical)




Nissl Stain (Cresyl Violet) - ANSWER Labels nucleic acids (DNA, RNA)

-big cells neurons

-small cells are glia

, Golgi stain (silver chromate) - ANSWER Labels only a subset of neurons

-visual action of entire neuron morphology

-staining mechanism is still unknown




Neurons - ANSWER Basic units of brain and nervous system




Neuroglia - ANSWER -support cells for neuron function




5 types of glia - ANSWER -astrocytes

-oligodendrocytes

-Schwann cells

-microglia

-ependymal cells




Dendrite - ANSWER -receives and processes information

-spines change to remember/forget

-neurodegenerate/neurodevelopment diseases caused by loss of spines

-dendrite spines




Nucleus - ANSWER Contains proteins and DNA