BIOL 251 HUMAN ANATOMY & PHYSIOLOGY I W/LAB | MODULE 1 & 2 LAB PRACTICAL EXAM QUESTIONS AND CORRECT ANSWERS WITH RATIONALES GRADED A+

, BIOL 251 HUMAN ANATOMY & PHYSIOLOGY I W/LAB |
MODULE 1 & 2 LAB PRACTICAL EXAM QUESTIONS AND
CORRECT ANSWERS WITH RATIONALES GRADED A+



Question 1
Slide shows a single layer of flat cells lining a blood vessel.
 Answer: Simple squamous epithelium
 Rationale: Single layer of flattened cells facilitates diffusion.


Question 2
Slide shows cube-shaped cells with large nuclei lining a gland duct.
 Answer: Simple cuboidal epithelium
 Rationale: Cube-shaped cells function in secretion and absorption.


Question 3
Slide shows column-shaped cells with microvilli lining the small intestine.
 Answer: Simple columnar epithelium
 Rationale: Microvilli increase surface area for absorption.


Question 4
Slide shows stratified layers of flat cells in areas of high abrasion (e.g., esophagus).
 Answer: Stratified squamous epithelium
 Rationale: Multiple layers protect against mechanical stress.

, Question 5
Slide shows ciliated cells with goblet cells lining the respiratory tract.
 Answer: Pseudostratified ciliated columnar epithelium
 Rationale: Cilia move mucus, goblet cells secrete mucus.


Question 6
Slide shows multiple layers of rounded and flattened cells lining the urinary
bladder.
 Answer: Transitional epithelium
 Rationale: Transitional epithelium stretches to accommodate urine.


Question 7
Slide shows collagen fibers in parallel bundles connecting muscle to bone.
 Answer: Dense regular connective tissue
 Rationale: Fibers arranged parallel for tensile strength (tendons, ligaments).


Question 8
Slide shows dense connective tissue with fibers arranged irregularly in multiple
directions.
 Answer: Dense irregular connective tissue
 Rationale: Resists stress from multiple directions (dermis).