Signs and symptoms of hypothyroidism include:
A) tachycardia and hypertension.
B) hot, flushed skin and restlessness.
C) diarrhea and emotional lability.
D) bradycardia and sluggish reflexes.
Ans: D) bradycardia and sluggish reflexes.
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Increased ____ permeability of nodal cells hyperpolarizes the SA node
a. chloride b. iodide c. potassium d. sodium e. zinc
A 16-year-old female develops shortness of breath, runny nose, wheezing, and chest tightening with no fever
A spirometry test is performed and revealed that her FEV1 is reduced, and her FEV1 to FVC ratio is abnormal. Her FEV1 improves by 15% after bronchodilator use. A chest x-ray is also performed. The family mentions that they purchased a cat several weeks ago. You suspect allergic asthma. Increased levels of what type of serum antibody would you like to see to confirm your diagnosis? A. IgA B. IgG C. IgM D. IgE E. IgD
Which of the following is true regarding the function of the parasympathetic nervous system?
A. Carries messages for everyday body maintenance functions B. Prepares the body for fight or flight C. Decreases blood flow to digestive organs D. Dilates blood vessels
In order to trigger the release of neurotransmitter from a neuron terminal, calcium ions
A. bind to ion channels on the neuron membrane and cause them to open for the transmitter. B. bind to proteins on the surface of synaptic vesicles. C. exit the synaptic knob through diffusion. D. penetrate the synaptic vesicles and bind to molecules of neurotransmitter.