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Alonso Mejia
Human Physiology Final
| The tiny bulge at the end of a terminal branch of a presynaptic neuron’s axon is called a(n) | synaptic knob. |
| The magnitude of the action potential peaks when the sodium channels close. | True |
| Which of the following is not associated with the oculomotor nerve? | Closing and opening of the eye (blink reflex) |
| Nerves that innervate the floor of the pelvic cavity and some of the surrounding areas are found in the _____ plexus. | coccygeal |
| The knee jerk can be classified as a segmental reflex because: | impulses that mediate it enter and leave the same segment of the cord. |
| _____, a natural constituent of blood, acts as an antithrombin and prevents clots from forming in vessels. | Heparin |
| The function of which antibody is basically unknown? | IgD |
| Activities that result in central movement or flow of lymph are called | lymphokinetic activities. |
| The body’s defense mechanisms can be organized into one of two major categories of immune mechanisms; these are | innate and adaptive immunity. |
| During inspiration, as the size of the thorax increases, the | intrapleural and alveolar pressures decrease. |
| The mechanism that produces pulmonary ventilation is one that establishes a gas pressure gradient between the | atmosphere and the alveolar air. |
| Which of these is not an example of mechanical digestion? | Moistening the food |