Which type of neuron is completely contained within the CNS?

Only the endocrine system
   works to regulate the activities of other body systems.
   helps to maintain homeostasis.
   brings about rapid responses by target organs.
   uses chemical signals to bring about changes in target organs.
   uses the bloodstream to convey signals throughout the body.

Which type of neuron is completely contained within the CNS?
   sensory neuron
   autonomic neuron
   interneuron
   sympathetic neuron
   motor neuron

If you eat a jelly donut, your pancreatic islets will respond by secreting
   insulin.
   oxytocin.
   glucagon.
   epinephrine.
   growth hormone.

Someone is a car accident and afterwards finds that their unconscious breathing rate has been permanently altered. Which part of the nervous system may have been affected?
   the somatic nervous system
   the spinal cord
   the autonomic nervous system
   the cerebrum

The parasympathetic division of the autonomic nervous system
   opposes the effects of the sympathetic division.
   uses the neurotransmitter norepinephrine.
   arises from parts of the spinal cord.
   inhibits digestion.
   is associated with "fight or flight."

If a person has a low platelet count which of the following would be of the greatest concern to her?
   a diet deficient in iron
   a bacterial infection
   a viral infection
   a parasitic worm infection
   a deep cut

Which one of the following statements is true about animals that do NOT have circulatory systems?
   They tend to have large bodies.
   They do not have tissues and organs.
   They may rely on diffusion for the transfer of gases, nutrients, and wastes.
   The body cells are typically distant from the source of the oxygen so the gas has to diffuse through several layers to reach all cells.
   There are no animals without circulatory systems.

In an open circulatory system
   hemolymph enters the heart via pores called ostia.
   blood leaves the heart via veins.
   blood is pumped out of the body and brought back in continually.
   nutrients are exchanged across the walls of capillaries.
   the heart has four chambers.

A four chambered heart, veins, arteries, and capillaries are found in
   all closed circulatory systems.
   all open circulatory systems.
   some closed circulatory systems.
   some open circulatory systems.
   mammals only.

In animals with four chambered hearts, the left ventricle
   is larger as it pumps blood in the pulmonary circuit.
   is larger as it pumps blood to the entire body.
   pumps blood to both the lungs and the body.
   pumps blood to the lungs.
   pumps deoxygenated blood.

A type of parasitic worm lives in the lymph vessels of humans, blocking the flow of lymph. What symptoms would you expect in someone with such an infection?
   heart attack
   the inability to fight infection
   the inability to absorb carbohydrates and proteins
   ventricular fibrillation
   the collection of tissue fluids in the areas blocked by the worms

Taking up fat from digestion and excess tissue fluid and returning it to cardiovascular veins is a function of the __________.
   circulatory system
   cardiovascular arteries
   systemic circuit
   lymphatic system
   pulmonary circuit