Unit 11: The Nervous System

Sacral, lumbar, brachial, cervical
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The neurogliaWhat is NOT part of a neuron?What is the function of neurons?Conducting electrical signals and passing information rapidly throughout the bodyWhich of the following is a difference between the dorsal and central roots that connect spinal nerves to the spinal cord?Dorsal roots transmit sensory signals, whereas ventral roots transmit motor signals.Examples of effectors in the nervous system include:Answer: muscle fibers in the biceps brachiaInputs to the nervous system may include:Answer: skin temperatureOutputs of the nervous system may result in:Answer: increased salivationOutputs of the nervous system may include:Answer: Increased heart rateExamples of effectors in the nervous system include:Answer: heart muscleMotor systems that are under our voluntary control (such as contraction of the biceps brachii,, a striated muscle) are part of the ____________ nervous systemAnswer: Somatic____________ plexuses are found on the walls of digestive organsAnswer: EntericWhich of the following is part of the PNS?Answer: sciatic nerveAlpha motor neurons are part of the ____________Answer: somatic nervous systemAt a synapse, the postsynaptic cell contains _________Answer: receptorsThe type of glial cell responsible for the immune defense of the brainAnswer: microgliaThis glial cell type creates CSF as a filtrate of blood, then moves CSF around with cilia inside the ventriclesAnswer: ependymal cellsCells in the nervous system that play a major role in support and nutrition of brain cells are _______Answer: glial cells________ cells support regrowth of cut nerve axons. Oligodendrocytes do not.Answer: Schwann cellsMyelinated axons in the PNS are surrounded by ____________Answer: astrocytesA spinal nerve exits the vertebra canal through the _____________Answer: intervertebral foramenThe cerebrum (cerebral cortex) and basal nuclei develop from which primary brain vesicle?Answer: prosencephalon (forebrain)The retina of the eye, the thalamus, the hypothalamus, and the epithalamus all derive from this secondary brain vesicle, who's name means "paired brain." All of the structures occur in pairs.Answer: DiencephalonBody temperature is regulated by the _________Answer: hypothalamusThe function of the pituitary gland is directly controlled by the _________Answer: hypothalamusDamage to Broca's areas causes ________Answer: AphasiaAphasiaProblems with producing speech and other symbolic languageWhich process is the molecular-level event that produces memories?Answer: Long-term potentiation