Q: Which formula correctly calculates the total magnification of a specimen viewed under a compound light microscope with a 10X ocular lens and a 40X objective lens?

Total Magnification $$= 10 \times 40 = 400$$

Q: Which formula would you use to estimate the percentage of body surface area affected by burns in an adult using the Rule of Nines?

Total Burn Area $$= (\text{Head} + 2 \times \text{Arms} + 2 \times \text{Legs} + \text{Anterior Trunk} + \text{Posterior Trunk} + \text{Perineum})$$

Question 1

Which type of microscopy is best suited for visualizing living cells in real time, allowing observation of dynamic cellular processes without staining?

Accepted Answer

Video Enhanced Contrast Microscopy

Question 2

A histology lab technician is preparing a tissue sample for microscopic analysis. Which sequence of steps is correct for standard histological technique?

Accepted Answer

Fixation → Processing → Embedding → Sectioning → Staining → Microscope Analysis

Question 3

A tissue sample stained with haematoxylin and eosin (H&E) shows nuclei as blue and cytoplasm as pink. What is the chemical basis for this differential staining?

Accepted Answer

Haematoxylin binds to nucleic acids, eosin binds to proteins

Question 4

Which formula correctly calculates the total magnification of a specimen viewed under a compound light microscope with a 10X ocular lens and a 40X objective lens?

Accepted Answer

Total Magnification $$= 10 	imes 40 = 400$$

Question 5

A patient presents with a burn that affects the entire thickness of the skin, including the epidermis and dermis, and requires skin grafting. Which type of burn is this?

Accepted Answer

Third-degree burn

Question 6

Which layer of the epidermis is only present in thick skin, such as the palms and soles, and is characterized by clear, dead keratinocytes?

Accepted Answer

Stratum Lucidum

Question 7

A pathologist is examining a tissue section from the urinary bladder. The cells appear to change shape from cuboidal to squamous depending on the degree of stretch. What type of epithelium is this?

Accepted Answer

Transitional epithelium

Question 8

Which connective tissue type is characterized by a loose arrangement of fibers, a reservoir of water and salts, and is the most widely distributed connective tissue in the body?

Accepted Answer

Areolar connective tissue

Question 9

A histological section of bone reveals concentric rings of calcified material surrounding a central canal. What is the name of this structural unit?

Accepted Answer

Osteon (Haversian system)

Question 10

Which cell type in the epidermis is responsible for producing melanin, and what is its primary function?

Accepted Answer

Melanocyte; protects against UV radiation

Question 11

A blood smear stained with Wright's stain shows red blood cells, purple-stained neutrophils, and red/orange eosinophils. Which component is responsible for blood clotting?

Accepted Answer

Platelets

Question 12

Which connective tissue type is found in intervertebral discs and menisci of the knee, and is specialized for resisting compression and acting as a shock absorber?

Accepted Answer

Fibrocartilage

Question 13

Which formula would you use to estimate the percentage of body surface area affected by burns in an adult using the Rule of Nines?

Accepted Answer

Total Burn Area $$= (	ext{Head} + 2 	imes 	ext{Arms} + 2 	imes 	ext{Legs} + 	ext{Anterior Trunk} + 	ext{Posterior Trunk} + 	ext{Perineum})$$

Question 14

Which type of muscle tissue is involuntary, non-striated, and found in the walls of hollow organs such as the intestines and blood vessels?

Accepted Answer

Smooth muscle

Question 15

A neuron is observed under the microscope. Which part of the neuron conducts nerve impulses away from the cell body?

Accepted Answer

Axon

Question 16

Which cutaneous receptor is specialized for detecting deep pressure and vibration in the skin?

Accepted Answer

Pacinian corpuscle

Question 17

A tissue section shows a single layer of tall, column-shaped cells with nuclei at different heights, giving the appearance of multiple layers. Some cells have cilia. What is the correct classification?

Accepted Answer

Pseudostratified columnar epithelium

Question 18

Which layer of the skin contains blood vessels, nerves, hair follicles, and sweat glands, and provides structural support to the epidermis?

Accepted Answer

Dermis

Question 19

A patient receives a steroid patch for medication delivery. Which function of the integumentary system is being utilized?

Accepted Answer

Cutaneous absorption

Question 20

Which connective tissue type is characterized by concentric rings (lamellae), osteocytes in lacunae, and canaliculi for nutrient exchange?

Accepted Answer

Bone

Tissues, Histology, and The Integumentary System: Study Notes

스터디 가이드 - 연습 문제

학습 가이드 - 플래시카드