Comprehensive Exam2: BIOS255 / BIOS
255 () Anatomy and Physiology
III with Lab | Questions and Verified
Answers | 100% Correct | Grade A -
Chamberlain
This Exam 2 for BIOS 255 (Anatomy and Physiology III) at Chamberlain University typically
covers materials from Weeks 3 and 4, focusing heavily on Blood Vessels (Chapter
20) and the Lymphatic System (Chapter 21).
Exam Format Overview
Matching/Multiple Answer: Covers vessel layers or lymphatic organs.
Calculations: Often requires finding Mean Arterial Pressure (MAP) or Net
Filtration Pressure (NFP).
Short Answer/Essay: Topics include tracing lymph flow or explaining vascular resistance.
Key Topics to Study
1. Blood Vessels & Hemodynamics
Vessel Layers: Differentiate between the tunica intima (endothelium), tunica
media (smooth muscle/elastic fibers), and tunica externa (collagen).
Artery vs. Vein Structure: Know that arteries have thicker tunica media to handle high
pressure, while veins have valves to prevent backflow.
Capillary Exchange: Understand the mechanics of filtration (driven by blood
hydrostatic pressure) and reabsorption (driven by colloid osmotic pressure).
Specific Anatomy:
Hepatic Portal System: Transports nutrient-rich, oxygen-poor blood from the GI tract to
the liver.
Circle of Willis: Provides alternative blood flow routes to the brain.
Major Vessels: Be able to trace blood through the superior/inferior vena cava, aortic
arch, and specific veins like the axillary and subclavian.
2. The Lymphatic System
Flow of Lymph: Know the sequence: Capillaries
1
, Vessels
Nodes
Trunks
Ducts.
Drainage Areas: The Thoracic Duct drains the majority of the body (left side and
everything below the diaphragm), while the Right Lymphatic Duct drains only the upper
right quadrant.
Organs & Tissues:
Thymus: Site of T cell maturation.
Spleen: Largest lymphatic organ; contains red and white pulp.
MALT: Mucosa-associated lymphatic tissue found in respiratory and digestive tracts.
3. Physiology & Regulation
Venous Return: Helped by the skeletal muscle pump ("milking" action) and
the respiratory pump.
Quiz_________________?
Arteries -
Answer
carry blood away from the heart; oxygenated
Quiz_________________?
Pulmonary arteries -
Answer
2
, Carries deoxygenated blood to the lungs.
Quiz_________________?
Umbilical artery -
Answer
carries deoxygenated blood away from fetus
Quiz_________________?
Veins -
Answer
carry blood back to the heart; deoxygenated
Quiz_________________?
Pulmonary Veins -
Answer
Carry oxygenated blood from lungs to heart.
Quiz_________________?
Umbilical Veins -
Answer
carries oxygenated blood from mother to fetus
3
, Quiz_________________?
Capillaries -
Answer
Connect smallest arteries to smallest veins to create a circuit
Quiz_________________?
functions of capillaries -
Answer
Thin walls allow exchange of gases & nutrients with tissues.
Quiz_________________?
Tunica interna(tunica intima) -
Answer
innermost lining of vessel
Quiz_________________?
What is tunica interna made of? -
Answer
Simple squamous epithelium (endothelium)
4
255 () Anatomy and Physiology
III with Lab | Questions and Verified
Answers | 100% Correct | Grade A -
Chamberlain
This Exam 2 for BIOS 255 (Anatomy and Physiology III) at Chamberlain University typically
covers materials from Weeks 3 and 4, focusing heavily on Blood Vessels (Chapter
20) and the Lymphatic System (Chapter 21).
Exam Format Overview
Matching/Multiple Answer: Covers vessel layers or lymphatic organs.
Calculations: Often requires finding Mean Arterial Pressure (MAP) or Net
Filtration Pressure (NFP).
Short Answer/Essay: Topics include tracing lymph flow or explaining vascular resistance.
Key Topics to Study
1. Blood Vessels & Hemodynamics
Vessel Layers: Differentiate between the tunica intima (endothelium), tunica
media (smooth muscle/elastic fibers), and tunica externa (collagen).
Artery vs. Vein Structure: Know that arteries have thicker tunica media to handle high
pressure, while veins have valves to prevent backflow.
Capillary Exchange: Understand the mechanics of filtration (driven by blood
hydrostatic pressure) and reabsorption (driven by colloid osmotic pressure).
Specific Anatomy:
Hepatic Portal System: Transports nutrient-rich, oxygen-poor blood from the GI tract to
the liver.
Circle of Willis: Provides alternative blood flow routes to the brain.
Major Vessels: Be able to trace blood through the superior/inferior vena cava, aortic
arch, and specific veins like the axillary and subclavian.
2. The Lymphatic System
Flow of Lymph: Know the sequence: Capillaries
1
, Vessels
Nodes
Trunks
Ducts.
Drainage Areas: The Thoracic Duct drains the majority of the body (left side and
everything below the diaphragm), while the Right Lymphatic Duct drains only the upper
right quadrant.
Organs & Tissues:
Thymus: Site of T cell maturation.
Spleen: Largest lymphatic organ; contains red and white pulp.
MALT: Mucosa-associated lymphatic tissue found in respiratory and digestive tracts.
3. Physiology & Regulation
Venous Return: Helped by the skeletal muscle pump ("milking" action) and
the respiratory pump.
Quiz_________________?
Arteries -
Answer
carry blood away from the heart; oxygenated
Quiz_________________?
Pulmonary arteries -
Answer
2
, Carries deoxygenated blood to the lungs.
Quiz_________________?
Umbilical artery -
Answer
carries deoxygenated blood away from fetus
Quiz_________________?
Veins -
Answer
carry blood back to the heart; deoxygenated
Quiz_________________?
Pulmonary Veins -
Answer
Carry oxygenated blood from lungs to heart.
Quiz_________________?
Umbilical Veins -
Answer
carries oxygenated blood from mother to fetus
3
, Quiz_________________?
Capillaries -
Answer
Connect smallest arteries to smallest veins to create a circuit
Quiz_________________?
functions of capillaries -
Answer
Thin walls allow exchange of gases & nutrients with tissues.
Quiz_________________?
Tunica interna(tunica intima) -
Answer
innermost lining of vessel
Quiz_________________?
What is tunica interna made of? -
Answer
Simple squamous epithelium (endothelium)
4
