Question

9 multiple choice 2 points
a(n) ________ is a cell or organ that responds to the commands from a control center and whose activity opposes or enhances the stimulus.
integration center
effector
thermostat
receptor

10 true or false 2 points
the shaft of a long bone is called the periosteum.
true
false

11 multiple choice 2 points
which of the following is utilized to adjust cardiac output and peripheral resistance to maintain tissue perfusion?
none of the above
baroreceptor reflexes
chemoreceptor reflexes
all of the above
negative feedback

Explanation:

Analyze homeostatic components for Question 9

An effector is the cell, tissue, or organ that carries out the response commanded by the control center to modify the stimulus.

Analyze long bone anatomy for Question 10

The shaft of a long bone is called the diaphysis, whereas the periosteum is the outer fibrous membrane covering the bone. Thus, the statement is false.

Analyze cardiovascular regulation mechanisms for Question 11

Both baroreceptor reflexes (regulating pressure) and chemoreceptor reflexes (regulating blood gases and pH) are utilized to adjust cardiac output and peripheral resistance to maintain tissue perfusion. Therefore, "all of the above" is the correct choice.

Answer:

Question 9

• integration center
• effector (Correct answer)
• thermostat
• receptor

Question 10

• True
• False (Correct answer)

Question 11

• none of the above
• baroreceptor reflexes
• chemoreceptor reflexes
• all of the above (Correct answer)
• negative feedback