Quiz I & II (Nervous System)

• Which part of your nervous system causes your airways to constrict?

  Parasympathetic Nervous System
• Which part of your nervous system causes your pupils to dilate?

  Sympathetic Nervous System
• Which part of your nervous system contains your skeletal muscles?

  Somatic Nervous System
• Which part of your nervous system inhibits digestion?

  Sympathetic
• What region of the brain is important processing sensory input (except for smell)?

  Thalamus
• Which part of your nervous system causes your blood vessels to dilate?

  Parasympathetic Nervous System
• What type of junctions keep material from passing between cells?


  Tight
• The part of your PNS stimulates salivary glands?

  Parasympathetic Nervous System
• What region of the brain is the region important in long term memory?

  Hippocampus
• Which type of molecules can freely pass membrane?

  Non-polar
• What region of the brain is the region where most of the higher thinking and processing takes place?

  Cerebral Cortex
• What region of the brain is important in remembering fear and responding to it?

  Amygdala
• How does the message get to the next neuron?

  The neurotransmitter allows an ion to enter the next cell
• Oxygen will be transported by:

  Simple Diffusion
• These are projections of the neuron cell body that can carry messages to the cell body

  Dendrites
• Which of the following type of neuron would alert the brain that you had touched a hot object?

  Afferent neuron
• What type of neuron is the arrow pointing to?

  Sensory

  
• When a neuron is depolarizing, the inside of the neuron cell becomes

  More positive
• The sodium/potassium pump is an example of

  Active Transport
• These neuroglial cells are form myelin sheaths in the CNS

  Oligodendrocytes
• When a neuron is resting, sodium ions have a greater concentration

  Outside the neuron
• These neuroglial cells provide nutrients to neurons

  Astrocytes
• When a neuron is depolarizing, which ions crosses the membrane of the neuron?

  Sodium (Na+)
• When potassium leaves the axon during repolarization, this is:

  Facilitated Diffusion
• When a neuron is repolarizing, which ions crosses the membrane of the neuron?

  Potassium (K+)
• The Sodium/Potassium pump moves sodium _____ the cell

  Out of
• These neuroglial cells are immune system cells

  Microglia
• How can an ion pass through a membrane?

  Facilitated Diffusion and Active Transport
• When a neuron is resting the ______ is more negative

  Inside
• Glucose can be transported by:

  Facilitated Diffusion and Active Transport
• Which disorder destroys the receptors on the skeletal muscle?

  Myastenia Gravis
• When sodium enters the axon during depolarization, this is:

  Facilitated Diffusion
• Amino acids can be transported by:

  Facilitated Diffusion and Active Transport
• If the ion is going against the concentration gradient, it is using:

  Active Transport
• Which ion enters the neuron synapse to trigger the release of neurotransmitters?

  Calcium (Ca2+)
• The cell bodies of these neurons are located in the dorsal root ganglion

  Sensory
• Steroids can be transported by:

  Simple Diffusion