BIOS 251 Exam 2 Review

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BIOS 251 Exam 2 Review

• The study of human structure

–Answer Anatomy

• The study of human function

–Answer Physiology

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

–Answer Homeostasis

• A state of balance

–Answer Equilibrium

• Consequences of homeostatic imbalance

–Answer Illness or death

• Thermoregulation Process

–Answer

• 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) –Answer Negative Feedback Loop

• A feedback loop in which a system responds to a change by amplifying that change. (Ex.

childbirth) –Answer Positive Feedback Loop

• Changes, occurring within or outside the body, that affect homeostasis 1 / 2

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–Answer - Stimuli

• Detects and sends messages to the control center

–Answer Receptors

• Processes the signal, alerts the effector about the detected change, and gives instructions

–Answer Control Center

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

–Answer Ef- fector

• Divides a human body into anterior and posterior sections

–Answer Frontal Plane or Coronal Plane

• Divides the human body into equal left and right sections

–Answer Midsagittal Plane

• Divides the human body in half, creating two sections; top and bottom

–Answer - Transverse or Horizontal Plane

• Parallel plane next to the midsagittal plane

–Answer Parasaggittal Plane

• Plane cut at an angle

–Answer Oblique

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