Answer the following questions true (T) or false (F)
1. The conduction of an action potential is faster in unmyelinated axons than in myelinated axons.
2. Regeneration of neural tissue in the peripheral nervous system (PNS) is possible only if the neuron's cell body remains intact.
3. During depolarization, the membrane potential becomes more positive.
1. FALSE
2. TRUE
3. TRUE
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Which of these is not one of the formed elements of blood?
A) RBCs B) platelets C) antibodies D) lymphocytes E) basophils
If class-2 MHC molecules were found on ________, donations of this tissue would drastically decrease.
A. red blood cells B. liver cells C. kidneys D. bone marrow
Describe the brachial plexus
A) The brachial plexus is a network of nerves formed by branches of spinal nerve segments C5-T1. B) The brachial plexus is a network of nerves formed by branches of spinal nerve segments C1-C7. C) The brachial plexus is a network of nerves formed by branches of spinal nerve segments T1-T12. D) The brachial plexus is a network of nerves formed by branches of spinal nerve segments L1-L5. E) The brachial plexus is a network of nerves formed by branches of spinal nerve segments S5-Co1.
Tuberculosis results from an infection by the bacterium
A) Clostridium difficile. B) Staphylococcus aureus. C) Mycobacterium tuberculosis. D) Vancomycin-resistant streptococcus. E) Tuberculin plumonae.