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Physio study stack 2
| Term | Definition |
|---|---|
| What is a membrane potential? (Chp 19) | A difference in electrical charge across the plasma membrane of a neuron. |
| Functions of the Thalamus (Chp 20) | Part of the mechanism responsible for sensations; part of the mechanism responsible for emotions by associating sensory impulses (pleasant vs unpleasant); arousal or alerting mechanism; produce complex reflex movements |
| What is a nerve plexus? (Chp 21) | A structure in which fibers of several different rami join together to form individual nerves. |
| What receptors do acetylcholine bind to? (Chp 22) | Nicotinic and muscarinic receptors |
| What is a tickle? (Chp 23) | Results from tactile stimulation of the skin by someone else. |
| Where are the sensors of sound exist? (Chp 24) | The cochlea |
| How do hormones reach target cells ? (Chp 25) | Hormones travel by way of the circulating bloodstream. |
| What hormones does the thymus secrete? (Chp 26) | Thymosin and thymopoietin |
| Functions of platelets (Chp 27) | Releases clot-activating substances and helps in formation of actual blood clot by forming platelet "plugs" |
| Function of the Heart Coverings (Chp 28) | Provides protection against friction |
| Functions of the hepatic portal circulation (Chp 29) | Removes excess glucose from the blood and stored in the liver; removal of toxins |
| What is a pulse? (Chp 30) | The alternate expansion and recoil of an artery. |
| What is mechanical filtration? (Chp 31) | Lymph nodes physically stop particles from progressing farther in the body. |
| What is a fever? (Chp 32) | A fever is a body-wide inflammatory response that manifests as a state of abnormally high body temperature. |
| What does immunoglobulin M do? (Chp 33) | IgM is the antibody that immature B cells synthesize and insert into their plasma membrances. |
| What is the medullary rhythmicity area? (Chp 36) | The area that generates the basic rhythm of the respiratory cycle of inspiration and expiration. |
| What is the job of hemoglobin? (Chp 37) | To transport oxygen and carbon dioxide around the body |
| Function of saliva (Chp 40) | Contains the enzymes that helps digest food and moisten food for easier swallowing |
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cemory
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