Test Bank for Essentials of Human
Anatomy & Physiology, 13th Edition
(Marieb & Keller) Comprehensive Exam
Preparation Resource WITH CORRECT
ANSWERS WELL VERIFIED 2026 AND IN-
DEPTH RATIONALE.
CHAPTER 1: THE HUMAN BODY: AN ORIENTATION
Multiple Choice Questions
1. A section that divides the body on the longitudinal plane into equal right and left
parts is called:
A) oblique
B) transverse
C) frontal
D) median (midsagittal)
E) coronal
ANSWER: D) median (midsagittal)
,Rationale: A median or midsagittal plane divides the body into equal right and left
halves. Sagittal planes divide the body into right and left portions, but only the
midsagittal plane creates equal halves .
2. Which of the following is the correct sequence, going from simplest to most complex,
in the levels of structural organization of the human body?
A) chemical level, tissue level, cellular level, organ system level, organ level, organismal
level
B) cellular level, chemical level, tissue level, organ system level, organismal level, organ
level
C) chemical level, cellular level, tissue level, organ level, organ system level, organismal
level
D) cellular level, chemical level, tissue level, organ level, organ system level, organismal
level
E) cellular level, tissue level, chemical level, organ level, organ system level, organismal
level
ANSWER: C) chemical level, cellular level, tissue level, organ level, organ system level,
organismal level
Rationale: The correct hierarchy of structural organization is: chemical
(atoms/molecules) → cellular → tissue → organ → organ system → organismal. This
represents increasing complexity .
3. Which of these regions is associated with the parts of the arm?
A) femoral, popliteal, patellar
,B) brachial, antecubital, carpal
C) nasal, oral, occipital
D) pelvic, pubic, inguinal
E) acromial, sacral, gluteal
ANSWER: B) brachial, antecubital, carpal
Rationale: The brachial region refers to the arm, antecubital refers to the anterior elbow
region, and carpal refers to the wrist. These are all regions of the upper limb .
4. The muscular system consists of the:
A) muscles in the walls of hollow organs
B) muscles of the heart and those in the walls of hollow organs
C) skeletal muscles
D) skeletal muscles and the muscles of the heart
E) muscles of the heart
ANSWER: C) skeletal muscles
Rationale: The muscular system consists only of skeletal muscles. Cardiac muscle (heart)
and smooth muscle (walls of hollow organs) are not part of the muscular system but
belong to other systems .
, 5. The lymphatic system:
A) synthesizes vitamin D
B) responds to internal and external changes by activating appropriate muscles and
glands
C) secretes hormones that regulate processes such as growth, reproduction, and
nutrient use
D) picks up fluid leaked from blood vessels and returns it to the blood
E) produces heat
ANSWER: D) picks up fluid leaked from blood vessels and returns it to the blood
Rationale: The lymphatic system returns leaked fluid from blood vessels back to the
bloodstream. It also plays a role in immunity .
6. Which system covers the external surface of the body and manufactures vitamin D?
A) endocrine system
B) skeletal system
C) nervous system
D) integumentary system
Anatomy & Physiology, 13th Edition
(Marieb & Keller) Comprehensive Exam
Preparation Resource WITH CORRECT
ANSWERS WELL VERIFIED 2026 AND IN-
DEPTH RATIONALE.
CHAPTER 1: THE HUMAN BODY: AN ORIENTATION
Multiple Choice Questions
1. A section that divides the body on the longitudinal plane into equal right and left
parts is called:
A) oblique
B) transverse
C) frontal
D) median (midsagittal)
E) coronal
ANSWER: D) median (midsagittal)
,Rationale: A median or midsagittal plane divides the body into equal right and left
halves. Sagittal planes divide the body into right and left portions, but only the
midsagittal plane creates equal halves .
2. Which of the following is the correct sequence, going from simplest to most complex,
in the levels of structural organization of the human body?
A) chemical level, tissue level, cellular level, organ system level, organ level, organismal
level
B) cellular level, chemical level, tissue level, organ system level, organismal level, organ
level
C) chemical level, cellular level, tissue level, organ level, organ system level, organismal
level
D) cellular level, chemical level, tissue level, organ level, organ system level, organismal
level
E) cellular level, tissue level, chemical level, organ level, organ system level, organismal
level
ANSWER: C) chemical level, cellular level, tissue level, organ level, organ system level,
organismal level
Rationale: The correct hierarchy of structural organization is: chemical
(atoms/molecules) → cellular → tissue → organ → organ system → organismal. This
represents increasing complexity .
3. Which of these regions is associated with the parts of the arm?
A) femoral, popliteal, patellar
,B) brachial, antecubital, carpal
C) nasal, oral, occipital
D) pelvic, pubic, inguinal
E) acromial, sacral, gluteal
ANSWER: B) brachial, antecubital, carpal
Rationale: The brachial region refers to the arm, antecubital refers to the anterior elbow
region, and carpal refers to the wrist. These are all regions of the upper limb .
4. The muscular system consists of the:
A) muscles in the walls of hollow organs
B) muscles of the heart and those in the walls of hollow organs
C) skeletal muscles
D) skeletal muscles and the muscles of the heart
E) muscles of the heart
ANSWER: C) skeletal muscles
Rationale: The muscular system consists only of skeletal muscles. Cardiac muscle (heart)
and smooth muscle (walls of hollow organs) are not part of the muscular system but
belong to other systems .
, 5. The lymphatic system:
A) synthesizes vitamin D
B) responds to internal and external changes by activating appropriate muscles and
glands
C) secretes hormones that regulate processes such as growth, reproduction, and
nutrient use
D) picks up fluid leaked from blood vessels and returns it to the blood
E) produces heat
ANSWER: D) picks up fluid leaked from blood vessels and returns it to the blood
Rationale: The lymphatic system returns leaked fluid from blood vessels back to the
bloodstream. It also plays a role in immunity .
6. Which system covers the external surface of the body and manufactures vitamin D?
A) endocrine system
B) skeletal system
C) nervous system
D) integumentary system
