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Randi
anatomy wk 6-13
| Question | Answer |
|---|---|
| Which two factors promote the return of venous blood to the heart? | blood-pumping action of respirations and skeletal muscle contractions |
| The type of membranous tissue that lines the heart and blood vessels is the | endothelium. |
| he four structures that compose the conduction system of the heart are the | SA node, AV node, AV bundle, and Purkinje fibers. |
| Which of the following is not a formed element found in the blood? | plasma |
| Erythrocytes begin their maturation sequence in red bone marrow from nucleated cells known as: | hematopoietic stem cells. |
| Interferon inhibits the spread of: | viruses. & bacteria |
| Which of the following is a true statement? | Lymph from the entire body, except the upper right quadrant, drains eventually into the thoracic duct. |
| What structure of the Schwann cell is essential to normal nerve growth and the regeneration of injured nerve fibers? | neurilemma |
| Which is true of a reflex arc? | It always consists of an afferent neuron and an efferent neuron. |
| The afferent pathways of the autonomic nervous system: | carry feedback information to integrating centers in the brain. |