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Liana Movsesyan
Human Physiology Week 7-13
| Question | Answer |
|---|---|
| Week 7: What is true of an action potential | The outside of the plasma membrane is negatively charged, and the inside is positively charged |
| A synaptic knob would be located on an | Axon |
| Stimulus-gated channels open in response to: | Sensory stimuli |
| Neurotransmitters are released in a synapse and bind to | Receptors on the postsynaptic neuron. |
| Dopamine, epinephrine, and norepinephrine are classified as | Catecholamines. |
| Week 8: Most effectors of the autonomic nervous system are dually innervated by sympathetic and parasympathetic neurons. (True or False ) | True |
| Parasympathetic stimulation has no effect on any of the following areas except | Sweat glands |
| The vomiting reflex is mediated by the | Medulla |
| The part of the brain that assists in the maintenance of balance is the | Cerebellum |
| Conduction by the sixth cranial nerve results in sensations of hearing. (True or False) | False |
| Week 9: Clearness or sharpness of visual perception is known as | Visual acuity |
| The receptors responsible for sensing crude and persistent touch are the | Ruffini corpuscles |
| The two-point discrimination test can be used to measure | The sensitivity of the skin in various parts of the body. |
| The immediate effect of a steroid hormone on a cell is the | Transcription of RNA. |
| When you are looking at a large green field, which cones would be sending the green wavelength to the brain | M |
| Week 10: A decrease in the amount of white blood cells is called | Leukopenia |
| The vagus is said to act as a “brake” on the heart. This situation is called | Vagal inhibition |
| The term blood type refers to the type of blood cell | Antigen |
| During pregnancy, what happens to the oxygenated blood returned from the placenta via the umbilical vein | It flows into the inferior vena cava |
| The term used to describe the collection of mechanisms that influence the circulation of blood is | Hemodynamics |
| Week 11: 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 the | Lymphocyte |
| Complement can best be described as an | Enzyme in blood |
| Memory cells | Become plasma cells when exposed to an antigen |
| The function of which antibody is basically unknown | IgD |
| Pyrogen molecules trigger the fever response by promoting the production of | Prostaglandins |
| Week 12: About 98.5% of the oxygen carried by systemic arterial blood is attached to | Hemoglobin |
| Dalton law states that the partial pressure of a gas in a mixture of gases is ___ to the total pressure of the mixture | Directly related to the concentration of that gas in the mixture and |
| The function of the vibrissae in the vestibule is to | Provide an initial “filter” to screen particulate matter from air that is entering the system |
| By the time the blood leaves the lung capillaries to return to the heart, what percentage of the blood’s hemoglobin has united with oxygen | 97% |
| Gas exchange, the lungs main and vital function, takes place in the | Alveoli |
| Week 13: The substances absorbed into the lymph capillaries are | Glycerol and fatty acids |
| The hormone thought to be a messenger causing release of digestive enzymes from the intestinal mucosa is | Vasoactive intestinal peptide. |
| The final product of carbohydrate digestion is a | Monosaccharide. |
| Bicarbonates are useful in the GI tract to | Neutralize hydrochloric acid |
| Glucose moves from the GI tract into the circulatory system by the process of | Cotransport |