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Christa Russell
Physiology week 7-13
| Question | Answer |
|---|---|
| The mechanisms that produce and maintain the resting membrane potential do so by producing a | slight excess of positive ions on the outer surface of the plasma membrane. |
| A synapse consists of: | 1. a synaptic knob. 2. a synaptic cleft. 3. the plasma membrane of a postsynaptic neuron. |
| The _____ nerve transmits impulses that result in sensations of equilibrium. | vestibular |
| Audition is a function of the _____ lobe. | temporal |
| Movement of hair cells in the organ of Corti against the _____ membrane can stimulate nerve impulse condition. | tectorial |
| _____ is used to determine the volume percentage of red blood cells in whole blood. | Hematocrit |
| The molecule that makes up 95% of the dry weight of each red blood cell and is responsible for the red pigment is | hemoglobin. |
| The heart begins beating in the fetus at about what stage of development? | After about 4 weeks |
| The lymphatic system is made up of lymphatic vessels where lymph flows in only one direction towards | the heart |
| _______ is the only antibody class with the ability to cross the placental barrier, providing passive immunity to the developing fetus during pregnancy. | IgG. |
| The mechanism that produces pulmonary ventilation is one that establishes a gas pressure gradient between the | atmosphere and the alveolar air. |
| The approximate partial pressure of oxygen at standard atmospheric pressure is about _____ mm Hg. | 160 |
| The wave-like ripple of the muscle layer of the GI tract is called | peristalsis. |
| Cellulose is a residue of digestion that comes from: | carbohydrates. |