BIOS-251: Exam 1 Review with
questions and well verified answers
actual exam!!! 2026
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 - 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 -
Effector
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
Midline of body - ANSWER -Medial
Away from midline - ANSWER -Lateral
Towards the head - ANSWER -Superior
Towards the feet - ANSWER -Inferior
Closer to the body or point of attachment - ANSWER -Proximal
questions and well verified answers
actual exam!!! 2026
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 - 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 -
Effector
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
Midline of body - ANSWER -Medial
Away from midline - ANSWER -Lateral
Towards the head - ANSWER -Superior
Towards the feet - ANSWER -Inferior
Closer to the body or point of attachment - ANSWER -Proximal
