click below
click below
Normal Size Small Size show me how
physiology wk 7-13
Question | Answer |
---|---|
The fastest nerve fibers in the body can conduct an impulse that is how much faster than the slowest fibers in the body? | Almost 500 times faster, |
Which of the following is true about pain receptors? | Alpha fibers are associated with sharp localized pain. |
Memory cells: | Become plasma cells when exposed to an antigen. |
The functions of the lymph nodes are | defense and heamatopoiesis |
Which of the following is a powerful poison that acts directly on any cell and quickly kills it? | lymphotoxin |
The ability of our immune system to attack abnormal or foreign cells but spare our own normal cells is called | adaptive immunity |
Complement can best be described as an | enzyme in blood |
ciliated cells lining the respiratory tract | help move the mucus blanket towards the pharynx |
Which of the following combinations in arterial blood could cause an increase in the respiratory rate | increased PC02 decreased arterial pressure decreased pH and decreased PO2 |
External respiration can be defined as | the exchange of gases between the lung and the blood capillaries in the lung and pulmonary ventilation |