psio 305 unit 1 questions well answered
graded A+
LO 1.1 Compare/contrast the different reasons or purposes for system-system
communication. - correct answer ✔✔systemic communication vs. trophic
communication
systemic communication: acute responses to changes (one system makes another
respond (DO something) rapidly to a change in environment or activity level)
- short-term manner
- contribute to homeostasis;
examples:
- the autonomic nervous system initiates an increase in heart rate or a decrease in
respiration depth
- the secretagogues stimulate release of pancreatic enzymes to facilitate digestion
- a decrease in body temperature sensed in the hypothalamus causes superficial
vasoconstriction to conserve heat
LO 1.1b Define 'trophic support' and provide examples which demonstrate its role
in an organism's growth, maintenance and adaptation. - correct answer
✔✔Trophic support: cells/ tissues/ systems talk to each other (for longer term
reasons)
- to provide support, promote growth or differentiation, and help maintain the
body's integrity.
- long term effects
graded A+
LO 1.1 Compare/contrast the different reasons or purposes for system-system
communication. - correct answer ✔✔systemic communication vs. trophic
communication
systemic communication: acute responses to changes (one system makes another
respond (DO something) rapidly to a change in environment or activity level)
- short-term manner
- contribute to homeostasis;
examples:
- the autonomic nervous system initiates an increase in heart rate or a decrease in
respiration depth
- the secretagogues stimulate release of pancreatic enzymes to facilitate digestion
- a decrease in body temperature sensed in the hypothalamus causes superficial
vasoconstriction to conserve heat
LO 1.1b Define 'trophic support' and provide examples which demonstrate its role
in an organism's growth, maintenance and adaptation. - correct answer
✔✔Trophic support: cells/ tissues/ systems talk to each other (for longer term
reasons)
- to provide support, promote growth or differentiation, and help maintain the
body's integrity.
- long term effects
