1
A&P 1 101 MODULE 6 LAB EXAM PRACTICAL SKILLS &
ANATOMICAL IDENTIFICATION 2026/2027 | Portage
Learning | Graded A+ | 100% Correct | Pass Guaranteed
Section 1: Microscope Usage & Tissue Identification (Q1-12)
Q1. You are examining a microscope slide and the instructor asks you to identify the
part labeled "A" at the top of the microscope that you look through to view the
specimen. The labeled structure is the:
A. Objective lens
B. Condenser
C. Ocular lens (eyepiece) [CORRECT]
D. Iris diaphragm
Rationale: The ocular lens (eyepiece) is located at the superior end of the microscope
body tube and is the lens through which the viewer observes the specimen; it
typically provides 10x magnification and is distinct from the objective lenses located
on the revolving nosepiece.
Correct Answer: C
Q2. Which objective lens should be used FIRST when initially locating and centering a
specimen on a microscope slide?
A. Oil immersion (100x)
B. High power (40x)
C. Scanning (4x) [CORRECT]
D. High dry (45x)
Rationale: The scanning objective (4x) provides the lowest magnification and largest
field of view, making it the standard starting point for locating specimens before
progressing to higher magnifications; starting with high power risks missing the
specimen or crashing the lens into the slide.
,2
Correct Answer: C
Q3. The microscope component located beneath the stage that concentrates light
onto the specimen and works in conjunction with the iris diaphragm to control
contrast is the:
A. Coarse focus knob
B. Fine focus knob
C. Condenser [CORRECT]
D. Revolving nosepiece
Rationale: The condenser is the lens system located under the stage that gathers and
focuses light from the illuminator onto the specimen; the iris diaphragm adjusts the
diameter of the light beam passing through the condenser to optimize contrast and
resolution.
Correct Answer: C
Q4. You place a stained tissue slide on the stage, turn on the illuminator, and look
through the oculars, but the field of view appears completely dark. What is the FIRST
adjustment you should make?
A. Rotate the nosepiece to oil immersion
B. Open the iris diaphragm fully and ensure the condenser is raised to its highest
position [CORRECT]
C. Turn the fine focus knob clockwise
D. Remove the slide and add a coverslip
Rationale: A dark field most commonly results from the iris diaphragm being closed
or the condenser being too low; opening the diaphragm and raising the condenser
to its proper position maximizes light transmission and should be attempted before
any other adjustments.
Correct Answer: B
,3
Q5. You are preparing to examine a blood smear using the oil immersion lens (100x).
Which of the following describes the CORRECT sequence for using oil immersion?
A. Focus on scanning power, rotate to high power, add immersion oil, then rotate the
oil immersion lens into place [CORRECT]
B. Add immersion oil to the slide first, then focus using the scanning objective
C. Focus on high power first, then add oil and rotate directly to oil immersion without
using scanning power
D. Add oil to the objective lens itself before placing the slide on the stage
Rationale: The correct protocol requires focusing on the specimen at scanning (4x)
and then high dry (40x) power before adding a drop of immersion oil to the slide and
rotating the oil immersion lens into place; this prevents lens damage and ensures the
specimen is centered and in focus.
Correct Answer: A
Q6. While examining a tissue slide at high power (40x), the image is slightly blurry.
You should use which focusing knob to sharpen the image without risking contact
between the lens and slide?
A. Coarse focus knob
B. Fine focus knob [CORRECT]
C. Stage adjustment knob
D. Condenser height adjustment
Rationale: The fine focus knob moves the stage (or nosepiece) in very small
increments and is the only safe focusing mechanism to use at high power and oil
immersion; the coarse focus knob moves the stage too rapidly and can crack the
slide or damage the objective lens.
Correct Answer: B
, 4
Q7. A student examines a tissue slide and observes a single layer of flat, scale-like
cells with flattened nuclei. This tissue is best classified as:
A. Simple cuboidal epithelium
B. Simple squamous epithelium [CORRECT]
C. Stratified squamous epithelium
D. Pseudostratified columnar epithelium
Rationale: Simple squamous epithelium is defined by a single layer of flattened cells
with flattened or oval nuclei; it is found in areas requiring rapid diffusion such as
alveoli of the lungs and lining of blood vessels (endothelium).
Correct Answer: B
Q8. A histology slide shows a single layer of cube-shaped cells with round, centrally
located nuclei lining a small duct. The highlighted tissue is:
A. Simple columnar epithelium
B. Transitional epithelium
C. Simple cuboidal epithelium [CORRECT]
D. Stratified squamous epithelium
Rationale: Simple cuboidal epithelium consists of a single layer of cells that are
roughly as tall as they are wide with spherical, centrally placed nuclei; this tissue is
characteristic of kidney tubules and glandular ducts.
Correct Answer: C
Q9. A student observes a tissue slide from the small intestine showing tall columnar
cells with oval nuclei near the base and scattered goblet cells among the epithelial
cells. This tissue is:
A. Pseudostratified ciliated columnar epithelium
B. Simple columnar epithelium [CORRECT]
A&P 1 101 MODULE 6 LAB EXAM PRACTICAL SKILLS &
ANATOMICAL IDENTIFICATION 2026/2027 | Portage
Learning | Graded A+ | 100% Correct | Pass Guaranteed
Section 1: Microscope Usage & Tissue Identification (Q1-12)
Q1. You are examining a microscope slide and the instructor asks you to identify the
part labeled "A" at the top of the microscope that you look through to view the
specimen. The labeled structure is the:
A. Objective lens
B. Condenser
C. Ocular lens (eyepiece) [CORRECT]
D. Iris diaphragm
Rationale: The ocular lens (eyepiece) is located at the superior end of the microscope
body tube and is the lens through which the viewer observes the specimen; it
typically provides 10x magnification and is distinct from the objective lenses located
on the revolving nosepiece.
Correct Answer: C
Q2. Which objective lens should be used FIRST when initially locating and centering a
specimen on a microscope slide?
A. Oil immersion (100x)
B. High power (40x)
C. Scanning (4x) [CORRECT]
D. High dry (45x)
Rationale: The scanning objective (4x) provides the lowest magnification and largest
field of view, making it the standard starting point for locating specimens before
progressing to higher magnifications; starting with high power risks missing the
specimen or crashing the lens into the slide.
,2
Correct Answer: C
Q3. The microscope component located beneath the stage that concentrates light
onto the specimen and works in conjunction with the iris diaphragm to control
contrast is the:
A. Coarse focus knob
B. Fine focus knob
C. Condenser [CORRECT]
D. Revolving nosepiece
Rationale: The condenser is the lens system located under the stage that gathers and
focuses light from the illuminator onto the specimen; the iris diaphragm adjusts the
diameter of the light beam passing through the condenser to optimize contrast and
resolution.
Correct Answer: C
Q4. You place a stained tissue slide on the stage, turn on the illuminator, and look
through the oculars, but the field of view appears completely dark. What is the FIRST
adjustment you should make?
A. Rotate the nosepiece to oil immersion
B. Open the iris diaphragm fully and ensure the condenser is raised to its highest
position [CORRECT]
C. Turn the fine focus knob clockwise
D. Remove the slide and add a coverslip
Rationale: A dark field most commonly results from the iris diaphragm being closed
or the condenser being too low; opening the diaphragm and raising the condenser
to its proper position maximizes light transmission and should be attempted before
any other adjustments.
Correct Answer: B
,3
Q5. You are preparing to examine a blood smear using the oil immersion lens (100x).
Which of the following describes the CORRECT sequence for using oil immersion?
A. Focus on scanning power, rotate to high power, add immersion oil, then rotate the
oil immersion lens into place [CORRECT]
B. Add immersion oil to the slide first, then focus using the scanning objective
C. Focus on high power first, then add oil and rotate directly to oil immersion without
using scanning power
D. Add oil to the objective lens itself before placing the slide on the stage
Rationale: The correct protocol requires focusing on the specimen at scanning (4x)
and then high dry (40x) power before adding a drop of immersion oil to the slide and
rotating the oil immersion lens into place; this prevents lens damage and ensures the
specimen is centered and in focus.
Correct Answer: A
Q6. While examining a tissue slide at high power (40x), the image is slightly blurry.
You should use which focusing knob to sharpen the image without risking contact
between the lens and slide?
A. Coarse focus knob
B. Fine focus knob [CORRECT]
C. Stage adjustment knob
D. Condenser height adjustment
Rationale: The fine focus knob moves the stage (or nosepiece) in very small
increments and is the only safe focusing mechanism to use at high power and oil
immersion; the coarse focus knob moves the stage too rapidly and can crack the
slide or damage the objective lens.
Correct Answer: B
, 4
Q7. A student examines a tissue slide and observes a single layer of flat, scale-like
cells with flattened nuclei. This tissue is best classified as:
A. Simple cuboidal epithelium
B. Simple squamous epithelium [CORRECT]
C. Stratified squamous epithelium
D. Pseudostratified columnar epithelium
Rationale: Simple squamous epithelium is defined by a single layer of flattened cells
with flattened or oval nuclei; it is found in areas requiring rapid diffusion such as
alveoli of the lungs and lining of blood vessels (endothelium).
Correct Answer: B
Q8. A histology slide shows a single layer of cube-shaped cells with round, centrally
located nuclei lining a small duct. The highlighted tissue is:
A. Simple columnar epithelium
B. Transitional epithelium
C. Simple cuboidal epithelium [CORRECT]
D. Stratified squamous epithelium
Rationale: Simple cuboidal epithelium consists of a single layer of cells that are
roughly as tall as they are wide with spherical, centrally placed nuclei; this tissue is
characteristic of kidney tubules and glandular ducts.
Correct Answer: C
Q9. A student observes a tissue slide from the small intestine showing tall columnar
cells with oval nuclei near the base and scattered goblet cells among the epithelial
cells. This tissue is:
A. Pseudostratified ciliated columnar epithelium
B. Simple columnar epithelium [CORRECT]
