MRETDIM · 101 YHPA
★ ★
Ivy Tech Community College
School of Health Sciences
EST. 1963
CHANGING LIVES · BUILDING INDIANA
APHY 101 — Midterm Examination
A N ATO M Y & P H YS I O LO G Y I
INSTITUTION Ivy Tech Community College COURSE CODE APHY 101
PROGRAM Associate of Science — Health ACADEMIC YEAR
Sciences
EXAM TITLE Midterm Examination — TOTAL QUESTIONS 107 Questions
Comprehensive Review
COURSE TITLE Anatomy & Physiology I FORMAT Multiple Choice — Select the
Single Best Answer
EXAMINATION INSTRUCTIONS
▸ Select the single best answer for each question unless otherwise instructed.
▸ Questions cover tissue types, cellular biology, organ systems, anatomical terminology, and physiological
processes.
▸ Correct answers and clinical rationales appear below each question for comprehensive board review.
▸ All content reflects standard Anatomy & Physiology I curriculum and evidence-based scientific
principles.
▸ Review all 107 questions thoroughly — content spans the full midterm examination scope.
, SECTION I — ANATOMY & PHYSIOLOGY I:
Questions 1 – 107
COMPREHENSIVE MIDTERM REVIEW
1. Gas exchange between the blood and the air in the lungs occurs through which type of
tissue?
A. Stratified squamous epithelium
B. Simple cuboidal epithelium
C. Simple squamous epithelium
D. Pseudostratified columnar epithelium
CORRECT ANSWER C — Simple squamous epithelium
RATIONALE Simple squamous epithelium is a single layer of thin, flattened cells ideally suited
for diffusion and filtration. In the lungs, this tissue forms the alveolar walls where
rapid gas exchange (O₂ and CO₂) occurs between inspired air and pulmonary
capillary blood. The extreme thinness of simple squamous cells minimizes the
diffusion distance, making efficient gas exchange possible.
2. Body heat is lost primarily by which mechanism?
A. Conduction
B. Convection
C. Evaporation
D. Radiation
CORRECT ANSWER D — Radiation
RATIONALE Radiation is the primary mechanism of heat loss from the body, accounting for
approximately 60% of total heat loss under normal conditions. Heat radiates from
the body surface as infrared electromagnetic waves to cooler surrounding objects
without direct contact. This process is continuous and occurs whenever the body
temperature exceeds ambient temperature.
,3. Bone cells form concentric circles around longitudinal tubes. What are these tubes called?
A. Lacunae
B. Canaliculi
C. Central canals
D. Perforating canals
CORRECT ANSWER C — Central canals
RATIONALE Central canals (Haversian canals) run longitudinally through osteons, the
structural units of compact bone. Osteocytes are arranged in concentric lamellae
around these central canals, which contain blood vessels and nerves that supply
the bone tissue. This cylindrical arrangement forms the osteon (Haversian
system), the fundamental functional unit of compact bone.
4. A body has been sectioned so that there is one whole lung per section and the urinary
bladder has been split in half. What type of section is this?
A. Transverse
B. Frontal (coronal)
C. Sagittal
D. Oblique
CORRECT ANSWER C — Sagittal
RATIONALE A sagittal section divides the body into right and left portions. A midsagittal
(median) section passes exactly through the midline, splitting the urinary bladder
(a midline structure) in half while leaving each lung (right and left, already lateral)
intact in its respective half. A transverse section would split both lungs, and a
frontal section would not split the bladder in half.
, 5. Which type of tissue lines the follicles of the thyroid gland?
A. Simple squamous epithelium
B. Simple cuboidal epithelium
C. Simple columnar epithelium
D. Stratified cuboidal epithelium
CORRECT ANSWER B — Simple cuboidal epithelium
RATIONALE Simple cuboidal epithelium lines the thyroid follicles. These cube-shaped cells
are specialized for secretion and absorption — the thyroid follicular cells
synthesize and secrete thyroid hormones (T3 and T4) into the colloid-filled follicle
lumen. Simple cuboidal epithelium is found wherever active secretion or
absorption occurs, including kidney tubules and glandular ducts.
6. The anaerobic reactions of cellular respiration take place in which cellular compartment?
A. Mitochondria
B. Nucleus
C. Cytoplasm
D. Endoplasmic reticulum
CORRECT ANSWER C — Cytoplasm
RATIONALE Glycolysis, the anaerobic phase of cellular respiration, occurs in the cytoplasm.
This process breaks down glucose into pyruvate, yielding a net of 2 ATP molecules
per glucose without requiring oxygen. The aerobic phases (citric acid cycle and
electron transport chain) occur within the mitochondria and require oxygen to
produce the remaining ~34 ATP molecules per glucose.
★ ★
Ivy Tech Community College
School of Health Sciences
EST. 1963
CHANGING LIVES · BUILDING INDIANA
APHY 101 — Midterm Examination
A N ATO M Y & P H YS I O LO G Y I
INSTITUTION Ivy Tech Community College COURSE CODE APHY 101
PROGRAM Associate of Science — Health ACADEMIC YEAR
Sciences
EXAM TITLE Midterm Examination — TOTAL QUESTIONS 107 Questions
Comprehensive Review
COURSE TITLE Anatomy & Physiology I FORMAT Multiple Choice — Select the
Single Best Answer
EXAMINATION INSTRUCTIONS
▸ Select the single best answer for each question unless otherwise instructed.
▸ Questions cover tissue types, cellular biology, organ systems, anatomical terminology, and physiological
processes.
▸ Correct answers and clinical rationales appear below each question for comprehensive board review.
▸ All content reflects standard Anatomy & Physiology I curriculum and evidence-based scientific
principles.
▸ Review all 107 questions thoroughly — content spans the full midterm examination scope.
, SECTION I — ANATOMY & PHYSIOLOGY I:
Questions 1 – 107
COMPREHENSIVE MIDTERM REVIEW
1. Gas exchange between the blood and the air in the lungs occurs through which type of
tissue?
A. Stratified squamous epithelium
B. Simple cuboidal epithelium
C. Simple squamous epithelium
D. Pseudostratified columnar epithelium
CORRECT ANSWER C — Simple squamous epithelium
RATIONALE Simple squamous epithelium is a single layer of thin, flattened cells ideally suited
for diffusion and filtration. In the lungs, this tissue forms the alveolar walls where
rapid gas exchange (O₂ and CO₂) occurs between inspired air and pulmonary
capillary blood. The extreme thinness of simple squamous cells minimizes the
diffusion distance, making efficient gas exchange possible.
2. Body heat is lost primarily by which mechanism?
A. Conduction
B. Convection
C. Evaporation
D. Radiation
CORRECT ANSWER D — Radiation
RATIONALE Radiation is the primary mechanism of heat loss from the body, accounting for
approximately 60% of total heat loss under normal conditions. Heat radiates from
the body surface as infrared electromagnetic waves to cooler surrounding objects
without direct contact. This process is continuous and occurs whenever the body
temperature exceeds ambient temperature.
,3. Bone cells form concentric circles around longitudinal tubes. What are these tubes called?
A. Lacunae
B. Canaliculi
C. Central canals
D. Perforating canals
CORRECT ANSWER C — Central canals
RATIONALE Central canals (Haversian canals) run longitudinally through osteons, the
structural units of compact bone. Osteocytes are arranged in concentric lamellae
around these central canals, which contain blood vessels and nerves that supply
the bone tissue. This cylindrical arrangement forms the osteon (Haversian
system), the fundamental functional unit of compact bone.
4. A body has been sectioned so that there is one whole lung per section and the urinary
bladder has been split in half. What type of section is this?
A. Transverse
B. Frontal (coronal)
C. Sagittal
D. Oblique
CORRECT ANSWER C — Sagittal
RATIONALE A sagittal section divides the body into right and left portions. A midsagittal
(median) section passes exactly through the midline, splitting the urinary bladder
(a midline structure) in half while leaving each lung (right and left, already lateral)
intact in its respective half. A transverse section would split both lungs, and a
frontal section would not split the bladder in half.
, 5. Which type of tissue lines the follicles of the thyroid gland?
A. Simple squamous epithelium
B. Simple cuboidal epithelium
C. Simple columnar epithelium
D. Stratified cuboidal epithelium
CORRECT ANSWER B — Simple cuboidal epithelium
RATIONALE Simple cuboidal epithelium lines the thyroid follicles. These cube-shaped cells
are specialized for secretion and absorption — the thyroid follicular cells
synthesize and secrete thyroid hormones (T3 and T4) into the colloid-filled follicle
lumen. Simple cuboidal epithelium is found wherever active secretion or
absorption occurs, including kidney tubules and glandular ducts.
6. The anaerobic reactions of cellular respiration take place in which cellular compartment?
A. Mitochondria
B. Nucleus
C. Cytoplasm
D. Endoplasmic reticulum
CORRECT ANSWER C — Cytoplasm
RATIONALE Glycolysis, the anaerobic phase of cellular respiration, occurs in the cytoplasm.
This process breaks down glucose into pyruvate, yielding a net of 2 ATP molecules
per glucose without requiring oxygen. The aerobic phases (citric acid cycle and
electron transport chain) occur within the mitochondria and require oxygen to
produce the remaining ~34 ATP molecules per glucose.
