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Sharice Dominguez
Human Physiology weeks 7-13
| Term | Definition |
|---|---|
| Potassium | The only ion(s) that can diffuse across a neuron’s membrane when the neuron is at rest is |
| Sodium-potassium pump | The active transport mechanism in the plasma membrane that transports sodium and potassium ions in opposite directions and at different rates is the |
| Saltatory conduction | When current leaps across an insulating myelin sheath from node to node, the type of impulse conduction is |
| Enkephalins | The neurotransmitter(s) that inhibit(s) the conduction of pain impulses is |
| Sensory stimuli | Stimulus-gated channels open in response to |
| Endolymph | The clear and potassium-rich fluid that fills the labyrinth is |
| Permissiveness | When a small amount of one hormone allows a second hormone to have its full effect, the phenomenon is called |
| Progesterone | The major hormone produced by the corpus luteum is |
| Oxytocin | One of the few hormones that functions on a positive-feedback loop is |
| Corticotrophs | The type of cells that secrete ACTH are |
| Ruffini corpuscles | The receptors responsible for sensing crude and persistent touch are |
| Leukopenia | A decrease in the amount of white blood cells is |
| Vagal inhibition | The vagus is said to act as a “brake” on the heart. This situation is |
| Diapedesis | Neutrophils are highly mobile and phagocytic. They migrate out of blood vessels and into tissue spaces. This process is |
| Sphygmomanometer | Blood pressure is measured with the aid of an apparatus known as |
| perfusion pressure | The localized pressure gradient needed to maintain blood flow in a tissue is |
| Erythropoietin | A glycoprotein hormone that is secreted to increase oxygen concentration in the tissues is |
| Vasodilation | Inhibition of sympathetic vasoconstrictor impulses is considered a major mechanism of |
| Self-tolerance | The ability of our immune system to attack abnormal or foreign cells but spare our own normal cells is |
| Lymphocyte | Adaptive immunity, part of the body’s third line of defense, is orchestrated by two different classes of a type of white blood cell called |
| Expiration occurs | When the pressure in the lung is greater than atmospheric pressure |
| Alveoli | Gas exchange, the lungs’ main and vital function, takes place in the |
| Tidal volume | The term used to describe the volume of air exchanged during normal inspiration and expiration is |
| Deglutition | The process of swallowing is known as |
| Monosaccharide | The final product of carbohydrate digestion is |
| Cholecystokinin | The hormone that stimulates the gallbladder to release bile is |
| Vasoactive intestinal peptide | The hormone thought to be a messenger causing release of digestive enzymes from the intestinal mucosa is |
| Secretin | The hormone that stimulates the release of bicarbonate substance from the pancreas is |