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Study Stack #2
Content covered in weeks 7-13
| Question | Answer |
|---|---|
| What is a membrane potential? | A difference in electrical charge across their plasma membranes. |
| What is an action potential? | An electrical fluctuation that travels along the surface of a neuron’s plasma membrane. |
| The four large, fluid-filled spaces within the brain are called? | Ventricles. |
| What do ascending tracts do? | Conduct sensory impulses up the cord to the brain |
| What do descending tracts do? | Conduct motor impulses down the cord from the brain. |
| What is the reflex center? | The center of a reflex arc or the place in the arc where incoming sensory impulses become outgoing motor impulses. |
| What are the six major divisions of the brain? ? | Medulla oblongata, pons, midbrain, cerebellum, diencephalon, and cerebrum. |
| Each skin surface area supplied by sensory fibers of a given spinal nerve is called? | Dermatome. |
| What is the watery extracellular fluid portion of blood? | A type of connective tissue. |
| Lymph from the entire body, except for the upper right quadrant, drains to which duct? | The thoracic duct, which drains into the left subclavian vein at the point where it joins the left internal jugular vein. |
| The anterior laryngeal eminence of the thyroid cartilage is often called? | Adam's apple. |
| What is the trachea is lined with? | Respiratory mucosa that is characterized by ciliated pseudostratified columnar epithelium. Mu-cous glands possessing many goblet cells help produce the blanket of mucus that continually moves upward toward the pharynx. |
| The barrier across which gases are exchanged between alveolar air and blood is called? | Respiratory membrane. |
| The process of swallowing, or deglutition, involves what three main steps, or stages? | 1. Oral stage (mouth to oropharynx) 2. Pharyngeal stage 3. Esophageal stage (esophagus to stomach) |
| What is often described as a wavelike ripple of the muscle layer of a hollow organ?? | Peristalsis |
| What can be described simply as mixing movement that occurs when digestive reflexes cause a forward and backward movement within a single region, or segment, of the GI tract?? | Segmentation |
| Where is bile produced, stored, and released? | Bile is produced in the liver and stored and concentrated in the gallbladder. Bile is released into the lumen of the GI tract by way of the common bile duct. |
| Lymph from the upper right quadrant of the body empties into which duct? | The right lymphatic duct and then into the right subclavian vein. |
Created by:
dsandyly
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