Explain where the two types of cholinergic receptors are located in the parasympathetic nervous system pathway
What will be an ideal response?
The two types of cholinergic receptors in the parasympathetic nervous system are muscarinic and nicotinic receptors. Nicotinic receptors are located in the membranes of all postganglionic parasympathetic neurons. Muscarinic receptors are found in the membranes of all parasympathetic target cells.
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Which of the following statements concerning the capillaries is FALSE?
A. It is possible for a capillary to filter fluid at its arterial end and absorb fluid at its venous end. B. Increasing capillary hydrostatic pressure decreases the likelihood that filtration will occur. C. Velocity of blood flow is slower in the capillaries than in the arteries. D. Large capillary pores are more likely to be found in liver capillaries than in brain capillaries. E. Large proteins that escape capillaries and enter the interstitial fluid are returned to the circulation via the lymphatic system.
Which of the following can flex the vertebral column?
A) iliocostalis cervicis B) longissimus thoracis C) iliocostalis lumborum D) multifidus E) longus colli
Before specific defenses are activated, most antigens must
A) infect cells. B) be processed by a phagocyte. C) either infect cells or be processed by a phagocyte. D) depolarize the lymphocyte. E) bind to the DNA of the lymphocyte
Anatomical asymmetries between the two cerebral hemispheres are known as ________.
Fill in the blank(s) with the appropriate word(s).