Hondros Bio 254 Exam 1 questions and
answers 2024\2025 A+ Grade
What are the functions of the lymphatic system?
- correct answer 1. Drain excess interstitial fluid
2. Help prevent edema
3. Absorb lipids from the digestive system
4. Defend body from disease
What are the organs of the lymphatic system
- correct answer Spleen, lymph nodes, lymphatic vessels
Where are lymph nodes found?
- correct answer Everywhere in the body except the CNS ( brain and spinal cord)
What does the lymphatic system do?
- correct answer Protects the human body against infection and returns interstitial fluid back to the
circulatory system
What are the 2 main lymphatic ducts
- correct answer Thoracic duct and right lymphatic duct
What portion of the body does the thoracic duct drain?
- correct answer 75% of the body, Left upper body, left and right lower body
What portion of the body does the right lymphatic duct drain?
- correct answer 25%, right upper portion
, Where do the 2 lymphatic ducts empty/drain?
- correct answer Subclavian vein, then back to the circulatory system
What is the largest lymphatic organ?
- correct answer Spleen
What do lymphatic vessels contain, what do they do?
- correct answer Valves, help maintain lymph circulation and prevents backflow
What does skeletal muscle contractions and inspirations do?
- correct answer help maintain lymphatic circulation
Innate Immunity
- correct answer Non-specific
Physical barriers
Phagocytosis ( inflammation )
Adaptive Immunity
- correct answer Involves B and T cells
Carried out by lymphocytes
What is Humoral Immunity
- correct answer B cells and antibodies
What is cell mediated immunity?
- correct answer T cells ( T lymphocytes )
What are functions of interferons
- correct answer Immune signaling for molecules to target and prevent the spread of viruses
What is the most abundant Immunoglobulin
- correct answer IgG- acts on bacteria, viruses, and toxins, activates complement
answers 2024\2025 A+ Grade
What are the functions of the lymphatic system?
- correct answer 1. Drain excess interstitial fluid
2. Help prevent edema
3. Absorb lipids from the digestive system
4. Defend body from disease
What are the organs of the lymphatic system
- correct answer Spleen, lymph nodes, lymphatic vessels
Where are lymph nodes found?
- correct answer Everywhere in the body except the CNS ( brain and spinal cord)
What does the lymphatic system do?
- correct answer Protects the human body against infection and returns interstitial fluid back to the
circulatory system
What are the 2 main lymphatic ducts
- correct answer Thoracic duct and right lymphatic duct
What portion of the body does the thoracic duct drain?
- correct answer 75% of the body, Left upper body, left and right lower body
What portion of the body does the right lymphatic duct drain?
- correct answer 25%, right upper portion
, Where do the 2 lymphatic ducts empty/drain?
- correct answer Subclavian vein, then back to the circulatory system
What is the largest lymphatic organ?
- correct answer Spleen
What do lymphatic vessels contain, what do they do?
- correct answer Valves, help maintain lymph circulation and prevents backflow
What does skeletal muscle contractions and inspirations do?
- correct answer help maintain lymphatic circulation
Innate Immunity
- correct answer Non-specific
Physical barriers
Phagocytosis ( inflammation )
Adaptive Immunity
- correct answer Involves B and T cells
Carried out by lymphocytes
What is Humoral Immunity
- correct answer B cells and antibodies
What is cell mediated immunity?
- correct answer T cells ( T lymphocytes )
What are functions of interferons
- correct answer Immune signaling for molecules to target and prevent the spread of viruses
What is the most abundant Immunoglobulin
- correct answer IgG- acts on bacteria, viruses, and toxins, activates complement
