Review 140 Questions and Answers With Rationale| Verified
Institution: Portage Learning
Course Code: BIOL 252
Course Title: Human Anatomy & Physiology II W/Lab
Exam: Final Exam
Assessment Type: Major Organ Systems, Including Cardiovascular,
Respiratory, Digestive, Urinary, Endocrine, And Reproductive Systems
Edition: Updated Version
Student Name: _______________________________
Student Id: _________________________________
Instructor: _________________________________
Instructions:
Answer All Questions.
Choose The Correct Answer
TABLE OF CONTENTS
Final Exam ------------------------------------------------------------------------------------------------------------- 2
QUESTIONS TYPE:
➢ Multiple Choice:
➢ True Or False:
➢ Explain/Describe/ Identification
➢ Fill In The Blank
➢ Short Answer
All The Best!!
,Final Exam
Question: 1
Covering Cuts, Scratches, Or Open Wounds With Waterproof Dressing Is Not Required
When Handling Blood As Long As You Wear Gloves.
A) True
B) False
ANS. B)
Explanation:
Gloves Can Tear, Puncture, Or Leak. Universal Precautions And Safety Standards
Mandate That Any Non-Intact Skin (Cuts, Scratches, Abrasions) Must Be Covered With
A Waterproof Dressing In Addition To Wearing Gloves To Provide A Double Layer Of
Protection Against Bloodborne Pathogens.
Question: 2
In The Capillaries, __ Enters The Bloodstream As Waste From The Surrounding Tissues.
A) Oxygen
B) Carbon Dioxide
C) Glucose
D) Hemoglobin
ANS. B)
Explanation:
During Cellular Respiration, Tissues Consume Oxygen And Nutrients To Produce
Energy, Creating Waste Products Such As Carbon Dioxide (CO_2). At The Capillary
Level, Oxygen Diffuses Out Of The Blood And Into The Tissue Cells, While Carbon
Dioxide Diffuses From The Tissues Into The Capillary Blood To Be Carried Away For
Removal By The Lungs.
Question: 3
,Coagulation Is The Process Of Turning Blood From A Gel Into A Liquid To Prevent Clot
Formation.
A) True
B) False
ANS. B)
Explanation:
Coagulation (Blood Clotting) Is The Process By Which Blood Changes From A Liquid
To A Gel, Forming A Blood Clot To Stop Bleeding From Damaged Blood Vessels. The
Reverse Process—Breaking Down A Clot—Is Called Fibrinolysis.
Question: 4
An Anticoagulant Is Any Substance That __ Coagulation And Blood Clotting.
A) Opposes
B) Accelerates
C) Initiates
D) Enhances
ANS. A)
Explanation:
Anticoagulants (Often Called Blood Thinners) Work By Inhibiting Or Opposing Specific
Clotting Factors In The Coagulation Cascade. This Process Prevents Or Slows Down The
Formation Of Blood Clots, Helping Blood Flow Smoothly Through Vessels.
Question: 5
What Is The Final Step In Erythropoiesis That Leads To The Formation Of Mature Red
Blood Cells?
A) Division Of Multipotent Hematopoietic Stem Cells
B) Synthesis Of Hemoglobin In Proerythroblasts
C) Expulsion Of Organelles From Reticulocytes
D) Extrusion Of The Nucleus From Normoblasts
ANS. C)
Explanation:
, Erythropoiesis Is The Process Of Producing Red Blood Cells (Erythrocytes). After The
Nucleus Is Extruded From An Orthochromatic Erythroblast (Normoblast), The Cell
Becomes A Reticulocyte Containing Residual Organelles Such As Mitochondria And
Ribosomes. In The Final Stage, Reticulocytes Enter The Bloodstream And Lose These
Remaining Organelles To Mature Fully Into Functional Red Blood Cells.
Question: 6
A Pulse Oximeter Measures Percent Saturation By Using Red And Infrared Light To
Assess Oxygen Levels In The Blood.
A) True
B) False
ANS. A)
Explanation:
Pulse Oximeters Pass Two Wavelengths Of Light—Red Light (660 Nm) And Infrared
Light (940 Nm)—Through A Vascular Tissue Bed (Like A Fingertip). Oxygenated
Hemoglobin Absorbs More Infrared Light, While Deoxygenated Hemoglobin Absorbs
More Red Light. By Calculating The Ratio Of Light Absorption, The Device Determines
Peripheral Capillary Oxygen Saturation
Question: 7
A Red Blood Cell With A High Mean Corpuscular Hemoglobin (MCH) Would Be
Classified As:
A) Normochromic
B) Hypochromic
C) Microcytic
D) Hyperchromic
ANS. D)
Explanation:
Mean Corpuscular Hemoglobin (MCH) Measures The Average Amount Of Hemoglobin
Inside A Single Red Blood Cell. The Prefix "Hyper-" Means Above Normal, And "-
Chromic" Refers To Color (Which Comes From Hemoglobin). Therefore, A Cell With