PLTW-HBS Unit 2 Question section full coverage. Graded A+. verified.
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PLTW-HBS
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PLTW-HBS
PLTW-HBS Unit 2 Question section full coverage. Graded A+. verified.
Brain Stem - -The part of the brain composed of the midbrain, pons, medulla oblongata and connecting the spinal cord with the cerebrum.
Central Nervous System - -The part of the nervous system which in vertebrates consists...
pltw hbs unit 2 question section full coverage graded a verified brain stem the part of the brain composed of the midbrain
medulla oblongata and connecting the spinal cord with the cer
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PLTW-HBS Unit 2 Question section full
coverage. Graded A+. verified.
Brain Stem - ✔✔-The part of the brain composed of the midbrain, pons, medulla oblongata and
connecting the spinal cord with the cerebrum.
Central Nervous System - ✔✔-The part of the nervous system which in vertebrates consists of the brain
and spinal cord to which sensory impulses are transmitted and from which motor impulses pass out, and
which supervises and coordinates the activity of the entire nervous system.
Cerebellum - ✔✔-A large dorsally projecting part of the brain concerned especially with the
coordination of muscles and teh maintenance of bodily equilibrium, situated between the brain stem
and the back of the cerebrum and formed in humans of two lateral lobes and a median lobe.
Cerebrum - ✔✔-The dorsal portion, composed of right and left hemispheres, of the vertebrate
forebrain; the integrating center for memory, learning, emotions, and other highly complex function of
the central nervous system.
Gyrus - ✔✔-A convoluted ridge between anatomical grooves.
Limbic System - ✔✔-A group of subcortical structures (as the hypothalamus, the hippocampus, and the
amygdala) of the brain that are concerned especially with emotion and motivation.
Lobe - ✔✔-A division of a body organ (as the brain, lungs, or liver) marked off by a fissure on the
surface.
Peripheral Nervous System - ✔✔-The part of the nervous system that is outside the central nervous
system and comprises the cranial nerves excepting the optic nerve, the spinal nerves, and the
autonomic nervous system.
, Phrenology - ✔✔-The study of the conformation of the skull based on the belief that it is indicative of
mental faculties and character.
Sulcus - ✔✔-A shallow furrow on the surface of the brain separating adjacent gyri.
Action Potential - ✔✔-A momentary reversal in electrical potential across a plasma membrane (as of a
nerve cell or muscle fiber) that occurs when a cell has been activated by stimulus.
Axon - ✔✔-A long nerve cell process that usually conducts impulses away from the cell body.
Dendrite - ✔✔-Any of the usually branching protoplasmic processes that conduct impulses toward the
body of a neuron.
Ion - ✔✔-An atom or group of atoms that carries a positive or negative electric charge as a result of
having lost or gained one or more electrons.
Myelin Sheath - ✔✔-In a neuron, an insulating coat of cell membrane from Schwann cells that is
interrupted by nodes of Ranvier.
Neurologist - ✔✔-A physician skilled in the diagnosis and treatment of disease of the nervous system.
Neuron - ✔✔-A nerve cell; the fundamental unit of the nervous system, having structure and properties
that allow it to conduct signals by taking advantage of the electrical charge across its cell membrane.
Neurotransmitter - ✔✔-A substance (as norepinephrine or acetylcholine) that transmits nerve impulses
across a synapse.
Reaction Time - ✔✔-The time elapsing between the beginning of the appliacation of a stimulus and the
beginning of an organism's reaction to it.
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