Chapter 2

Question 1

What term describes a signal traveling toward a particular center or point of reference?

Answer 1

Afferent

Question 2

The impact of effector activity on sensors may be positive or negative. Therefore, homeostatic mechanisms are categorized as:

Answer 2

Organs that are directly influenced by regulated physiological variables or mechanisms.

Question 3

Which level of control operates at the cell level, often using genes and enzymes to regulate cell function?

Answer 3

Intracellular regulation

Question 4

Local control or _____, intrinsic mechanisms often make use of chemical signals.

Answer 4

autoregulation

Question 5

Extrinsic control usually involves which mode of regulation?

Answer 5

Both Nervous and Endocrine.