BIOS-251: Exam 1 Review Questions and Answers

BIOS-251: Exam 1 Review Questions and Answers
The study of human structure - -Anatomy

-The study of human function - -Physiology

-A tendency for organisms to maintain a balanced or constant internal state - -
Homeostasis

-A state of balance - -Equilibrium

-Consequences of homeostatic imbalance - -Illness or death

-Thermoregulation Process - -

-A feedback loop in which a system responds to a change by reversing that change, or by
decreasing the rate at which the change is occurring. (Ex. thermoregulation) - -Negative
Feedback Loop

-A feedback loop in which a system responds to a change by amplifying that change. (Ex.
childbirth) - -Positive Feedback Loop

-Changes, occurring within or outside the body, that affect homeostasis - -Stimuli

-Detects and sends messages to the control center - -Receptors

-Processes the signal, alerts the effector about the detected change, and gives instructions -
-Control Center

-An organ or cell that acts in response to a stimulus; handles the issue - -Effector

-Divides a human body into anterior and posterior sections - -Frontal Plane or Coronal
Plane

-Divides the human body into equal left and right sections - -Midsagittal Plane

-Divides the human body in half, creating two sections; top and bottom - -Transverse or
Horizontal Plane

-Parallel plane next to the midsagittal plane - -Parasaggittal Plane

-Plane cut at an angle - -Oblique

-Midline of body - -Medial