Fall 2016 Directions: Read each description/definition carefully and select the
ID: 3519224 • Letter: F
Question
Fall 2016 Directions: Read each description/definition carefully and select the answer option that best fits. Darken the letter on the Apperson sheet that corresponds with the answer you selected. Answers can be used once, more than once or not at all. Just select the one that best applies for each question. PLEASE ANSWER EVERY QUESTION IN THIS SECTION-EVEN IF YOU HAVE TO MAKE AN EDUCATED GUESS! Homeostasis&Feedback; Loops 1. Detection of changes in the physiological environment is job of this step in a a) Afferent pathway feedback loop. During the spreading of a neuron's action potential, the influx of sodium stimulates the opening of channels that allow more sodium to enter. This is an example of a (positive or negative) feedback loop. b) Effector c) Efferent pathway d) Integrating center e) Negative ab) Response ac) Parasympathetic ad) Positive ae) Sensor bc) Somatic motor 2. e3. During the stress response, this autonomic pathway will be activated In a feedback loop, if an increase in blood pressure is the stimulus, the conducting cells of the sinoatrial node would be a/an_. This type of neuron is used to send a signal to skeletal muscle cells. 4. 5. 6. In a feedback loop resulting from the detection of high blood osmolarity, 7. In a feedback loop, if an increase in temperature is the stimulus a decrease inbd) Stimulus 8. In systemic (whole-body) feedback loops, sensory neurons typically represent 9. The medulla oblongata, hypothalamus, and pituitary are examples of this step 10. When a particular physiological change occurs in the body, the structure that vasopressin will be this step. temperature would be the this step. of the feedback loop. can act to adjust the system is called the_ in a feedback loop be) Sympathetic Cellular Signaling, Reception & TransportExplanation / Answer
1. Detection of changes in physiological environment ae) sensor.
2. This is an example of ad) positive feedback
3. During the stress response be) sympathetic pathway will activate.
4. The conducting cells of sinoatrial node would be d) integrating centre.
5. bc) somatic motor neurons use to send signals to skeletal muscles.
6.Vasopressin will act as e) negative.
7. Decrease in temperature is ab) response.
8. Sensory neurons typically represents a) afferent pathway.
9. The hypothalamus, medulla oblongata and pituitary are b) effector.
10. The answer is bd) stimulus.
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