BIO 201 HUMAN ANATOMY AND PHYSIOLOGY
CHAPTER 1 EXAMS WITH 100% ACCURATE
DETAILED ANSWERS 2025/2026 UPDATED BEST
RATED A+ FOR SUCCESS
Receptor
a body structure that monitors changes in a controlled
condition. sends information to the control center
Control Center
also known as the brain, evaluates input received from
receptors and generates output command
Effector
receives output information from control center and produces a
response or effect that changes the controlled condition
Positive feedback
Strengthen or reinforces a change in one of the body's
controlled conditions Ex. labor
Negative feedback
Reverses a change in a controlled condition Ex. blood pressure
Anatomical position
subjects stands erect facing the observer, head level and eyes
facing directly forward.
, BIO 201 HUMAN ANATOMY AND PHYSIOLOGY
CHAPTER 1 EXAMS WITH 100% ACCURATE
DETAILED ANSWERS 2025/2026 UPDATED BEST
RATED A+ FOR SUCCESS
The feet are flat on the floor and directly forward, and the
upper limbs are at the sides, with the palms turned forward.
Prone position
body is lying face down
Supine position
body is lying face up
Directional terms
describe the position of one part of the body in relation to
another part of the body
Anterior/ventral
toward the front of the body
Posterior/dorsal
toward the back of the body
Superior/cephalic
toward the head
Inferior/caudal
away from the head
CHAPTER 1 EXAMS WITH 100% ACCURATE
DETAILED ANSWERS 2025/2026 UPDATED BEST
RATED A+ FOR SUCCESS
Receptor
a body structure that monitors changes in a controlled
condition. sends information to the control center
Control Center
also known as the brain, evaluates input received from
receptors and generates output command
Effector
receives output information from control center and produces a
response or effect that changes the controlled condition
Positive feedback
Strengthen or reinforces a change in one of the body's
controlled conditions Ex. labor
Negative feedback
Reverses a change in a controlled condition Ex. blood pressure
Anatomical position
subjects stands erect facing the observer, head level and eyes
facing directly forward.
, BIO 201 HUMAN ANATOMY AND PHYSIOLOGY
CHAPTER 1 EXAMS WITH 100% ACCURATE
DETAILED ANSWERS 2025/2026 UPDATED BEST
RATED A+ FOR SUCCESS
The feet are flat on the floor and directly forward, and the
upper limbs are at the sides, with the palms turned forward.
Prone position
body is lying face down
Supine position
body is lying face up
Directional terms
describe the position of one part of the body in relation to
another part of the body
Anterior/ventral
toward the front of the body
Posterior/dorsal
toward the back of the body
Superior/cephalic
toward the head
Inferior/caudal
away from the head
