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Grenisha Howard
Physiology Weeks 7-13
| Question | Answer |
|---|---|
| A synapse can occur only between an axon and: | A cell body, another axon or a dendrite |
| True or False: Acetylcholine is in the same class of neurotransmitters as serotonin, histamine and dopamine. | False: None of the above |
| The effect of sympathetic stimulation on the urinary bladder is called what? | Relaxation |
| The reticular activating system maintains what? | Consciousness |
| "Fight or Flight" physiological changes do NOT include: | Constriction of respiratory airways |
| True or False: Once inside the sympathetic chain ganglion, the preganglionic fiber may synapse with a sympathetic postganglionic neuron. | False |
| True or False: Once inside the sympathetic chain ganglion, the preganglionic fiber may send ascending and/or descending branches through the sympathetic trunk to synapse with postganglionic neurons in other chain ganglia. | False |
| True or False: Once inside the sympathetic chain ganglion, the preganglionic fiber may pass through one or more ganglia without synapsing. | False |
| Impulses sent over which of the following tracts could result in voluntary movement, especially of the hands, fingers, feet, and toes of the opposite side? | Lateral corticospinal |
| Where do frequencies—from high to low pitches—cause activity in the hair cells within the cochlear duct? | The apex of the cochlea and between the base and the apex of the cochlea |
| Accommodation for near vision necessitates | An increase in the curvature of the lens, constriction of the pupils, and convergence of the two eyes |
| Which of the following is true about pain receptors? | Alpha fibers are associated with sharp, localized pain |
| Which of the following is not a characteristic of the endocrine system? | Chemical messenger travels a short distance |
| Movement of hair cells in the organ of Corti against the _____ membrane can stimulate nerve impulse condition | Tectorial |
| The term blood type refers to the type of blood cell | Antigen |
| n the extrinsic pathway of stage 1 of the clotting mechanism, chemicals released from damaged tissues trigger the cascade of events that ultimately result in the formation of | Prothrombin activator |
| The physiological mechanism that dissolves clots is known as | Fibrinolysis |
| The ability of our immune system to attack abnormal or foreign cells but spare our own normal cells is called: | Adaptive immunity |
| Which of the following is a powerful poison that acts directly on any cell and quickly kills it? | Lymphotoxin |
| During inspiration, the expansion of the lungs causes what? | a decrease in alveolar pressure |
| What percentage of this blood flow comes from the hepatic portal system? | 80% |
| The final step in lipid transport by the intestines is the formation of: | Chylomicrons |
| Saliva contains the enzyme: | Amylase |
| Which of the following is not true of enzymes? | They change chemically and are in the end products of the reaction. |
| Which of these is not an example of mechanical digestion? | Moistening the food |
Created by:
Grenisha
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