BIO 253 EXAM 1 QUESTIONS AND
ANSWERS 100% SOLVED 2025
Anatomy - ANSWERStudy of the structure of a organism and the relationships of its
parts.
Physiology - ANSWERStudy of organisms body functions
anatomical position - ANSWERerect position of the body with the face directed forward,
the arms at the side, and the palms of the hands facing forward, used as a reference in
describing the relation of body parts to one another.
Superior - ANSWERToward the top of the body
Inferior - ANSWERToward the bottom of the body
Proximal (describes relative position in a limb or other appendage) - ANSWERToward
the trunk
Distal - ANSWERAway from the trunk or point of attachment
Lateral - ANSWERToward the side; away from the midsagittal plane
Medial - ANSWERToward the midsagittal plane; away from the side
Deep - ANSWERToward the inside of a part; away from the surface.
Superficial - ANSWERToward the surface of a part; away from the inside.
sagittal - ANSWERAny lengthwise plane running front to back and top to bottom
dividing the body or any of its parts into right and left sides.
coronal - ANSWERAny lengthwise plane running from side to side and top to bottom,
dividing the body or any of its parts into anterior and posterior portions
transverse - ANSWERAny crosswise plane that divides the body or any of its parts into
upper and lower parts
oblique plane - ANSWERcut that follows a diagonal plane
What are characteristics of life - ANSWERResponsiveness, conductivity, growth,
respiration, digestion, abortion, secretion, excretion, circulation, and reproduction.
, Levels of organization - ANSWERchemical level,organelle level, cellular level, tissue
level, organ level, system level, organism level.
Ventral Body Cavity - ANSWERContains: Thoracic cavity, Abdominopelvic cavity
Functions: Provides protection; Allows organ movement; Linings prevent friction
Thoracic Cavity - ANSWERArea: Surrounded by chest wall and diaphragm
Contains: Right/Left pleural cavities, Mediastinum, Pericardial cavity
Right/Left Pleural Cavity - ANSWERSurrounds right/left lung
Mediastinum - ANSWERContains: Trachea, Esophagus, Major vessels, Pericardial
cavity
Pericardial Cavity - ANSWERSurrounds heart
Diaphragm - ANSWERFlat muscular sheet that separates the thoracic and
abdominopelvic cavities
Abdominopelvic Cavity - ANSWERContains: Peritoneal cavity, Abdominal cavity, Pelvic
cavity
Peritoneal Cavity - ANSWERExtends throughout abdominal cavity and into superior
portion of pelvic cavity
Abdominal Cavity - ANSWERContains many digestive glands and organs
Pelvic Cavity - ANSWERContains: Urinary bladder, Reproductive organs, Last portion
of digestive tract
Name the 9 Abdominal Regions - ANSWER1. Right hypochrondriac region
2. Epigastric region
3. Left hypochrondriac region
4. Right lumbar region
5. Umbilical region
6. Left lumbar region
7. Right iliac (inguinal) region
8. Hypogastric region
9. Left iliac (inguinal) region
Name the 4 Abdominopelvic Quadrants - ANSWERRUQ (Right Upper Quadrant), LUQ
(Left Upper Quadrant).RLQ (Right Lower Quadrant), LLQ (Left Lower Quadrant).
Negative Feedback Loop - ANSWERbody senses a change an activates mechanisms
to reverse it(dynamic equilibrium)
-Opposite actions happening to repair homeostatsis
ANSWERS 100% SOLVED 2025
Anatomy - ANSWERStudy of the structure of a organism and the relationships of its
parts.
Physiology - ANSWERStudy of organisms body functions
anatomical position - ANSWERerect position of the body with the face directed forward,
the arms at the side, and the palms of the hands facing forward, used as a reference in
describing the relation of body parts to one another.
Superior - ANSWERToward the top of the body
Inferior - ANSWERToward the bottom of the body
Proximal (describes relative position in a limb or other appendage) - ANSWERToward
the trunk
Distal - ANSWERAway from the trunk or point of attachment
Lateral - ANSWERToward the side; away from the midsagittal plane
Medial - ANSWERToward the midsagittal plane; away from the side
Deep - ANSWERToward the inside of a part; away from the surface.
Superficial - ANSWERToward the surface of a part; away from the inside.
sagittal - ANSWERAny lengthwise plane running front to back and top to bottom
dividing the body or any of its parts into right and left sides.
coronal - ANSWERAny lengthwise plane running from side to side and top to bottom,
dividing the body or any of its parts into anterior and posterior portions
transverse - ANSWERAny crosswise plane that divides the body or any of its parts into
upper and lower parts
oblique plane - ANSWERcut that follows a diagonal plane
What are characteristics of life - ANSWERResponsiveness, conductivity, growth,
respiration, digestion, abortion, secretion, excretion, circulation, and reproduction.
, Levels of organization - ANSWERchemical level,organelle level, cellular level, tissue
level, organ level, system level, organism level.
Ventral Body Cavity - ANSWERContains: Thoracic cavity, Abdominopelvic cavity
Functions: Provides protection; Allows organ movement; Linings prevent friction
Thoracic Cavity - ANSWERArea: Surrounded by chest wall and diaphragm
Contains: Right/Left pleural cavities, Mediastinum, Pericardial cavity
Right/Left Pleural Cavity - ANSWERSurrounds right/left lung
Mediastinum - ANSWERContains: Trachea, Esophagus, Major vessels, Pericardial
cavity
Pericardial Cavity - ANSWERSurrounds heart
Diaphragm - ANSWERFlat muscular sheet that separates the thoracic and
abdominopelvic cavities
Abdominopelvic Cavity - ANSWERContains: Peritoneal cavity, Abdominal cavity, Pelvic
cavity
Peritoneal Cavity - ANSWERExtends throughout abdominal cavity and into superior
portion of pelvic cavity
Abdominal Cavity - ANSWERContains many digestive glands and organs
Pelvic Cavity - ANSWERContains: Urinary bladder, Reproductive organs, Last portion
of digestive tract
Name the 9 Abdominal Regions - ANSWER1. Right hypochrondriac region
2. Epigastric region
3. Left hypochrondriac region
4. Right lumbar region
5. Umbilical region
6. Left lumbar region
7. Right iliac (inguinal) region
8. Hypogastric region
9. Left iliac (inguinal) region
Name the 4 Abdominopelvic Quadrants - ANSWERRUQ (Right Upper Quadrant), LUQ
(Left Upper Quadrant).RLQ (Right Lower Quadrant), LLQ (Left Lower Quadrant).
Negative Feedback Loop - ANSWERbody senses a change an activates mechanisms
to reverse it(dynamic equilibrium)
-Opposite actions happening to repair homeostatsis
