BSC 216 -Exam 2 – Hicks Study Guide
Questions and Answers Graded To Pass
2026.
functions of the organ system - Answer - O2 and CO2 exchange between blood and air
- speech and other vocalizations
- smell
- pH of body fluids
- affects blood pressure
- promotes the flow of lymph and venous blood
- helps expel abdominal contents
principal organs of the respiratory system - Answer nose, pharynx, larynx, trachea, bronchi,
and lungs
functions of the lymphatic system - Answer - fluid recovery
- immunity
- lipid absorption
direction of lymph flow - Answer toward the heart
lymph flow - Answer lymphatic capillaries > lymphatic collecting vessels > lymph nodes >
lymphatic trunks > lymphatic ducts
lymphocytes - Answer mature into T-lymphocytes and B-lymphocytes
T-lymphocyte - Answer also known as a T-cell; they directly attack infected cells and invaders
B--lymphocyte - Answer produce plasma cells that secrete antibodies against antigens
macrophage - Answer main function is to phagocytize foreign substances and they activate T-
cells
dendritic cells - Answer present antigens to T-cells
, reticular cells - Answer produce a fibrous network that supports other lymphoid cells
mucosa-associated lymphatic tissue (MALT) - Answer protects open pathways from infection;
diffuse lymphatic tissues in walls of bronchi and mucosa of genital and urinary organs
primary lymphatic organs - Answer red bone marrow and thymus (areas where B-cells and T-
cells become immunocompetent
secondary lymphatic organs - Answer lymph nodes, tonsils, an the spleen
tonsils - Answer rings of lymphatic tissue at the entrance of the throat; 3 types: palatine,
lingual, pharyngeal
lymph nodes - Answer functions in the filtration of microorganisms and debris from loose
connective tissue by macrophages and in immune system activation
spleen - Answer site of lymphocyte proliferation, immune surveillance, and immune
activation; cleanses blood; site of fetal erythrocyte production
thymus - Answer site where T-lymphocytes become immunocompetent
surface barriers - Answer skin and mucous membranes
innate immunity - Answer non-specific immunity
organs of the urinary tract - Answer ureters, urinary bladder, urethra
organs of the urinary system - Answer kidneys, urinary bladder, ureters, urethra
functions of the kidneys - Answer - removal of metabolic wastes
- regulation of fluid and electrolyte balance
- regulation of acid base balance
- maintenance of blood pressure
- regulation of erythropoiesis
- performance of other metabolic functions
Questions and Answers Graded To Pass
2026.
functions of the organ system - Answer - O2 and CO2 exchange between blood and air
- speech and other vocalizations
- smell
- pH of body fluids
- affects blood pressure
- promotes the flow of lymph and venous blood
- helps expel abdominal contents
principal organs of the respiratory system - Answer nose, pharynx, larynx, trachea, bronchi,
and lungs
functions of the lymphatic system - Answer - fluid recovery
- immunity
- lipid absorption
direction of lymph flow - Answer toward the heart
lymph flow - Answer lymphatic capillaries > lymphatic collecting vessels > lymph nodes >
lymphatic trunks > lymphatic ducts
lymphocytes - Answer mature into T-lymphocytes and B-lymphocytes
T-lymphocyte - Answer also known as a T-cell; they directly attack infected cells and invaders
B--lymphocyte - Answer produce plasma cells that secrete antibodies against antigens
macrophage - Answer main function is to phagocytize foreign substances and they activate T-
cells
dendritic cells - Answer present antigens to T-cells
, reticular cells - Answer produce a fibrous network that supports other lymphoid cells
mucosa-associated lymphatic tissue (MALT) - Answer protects open pathways from infection;
diffuse lymphatic tissues in walls of bronchi and mucosa of genital and urinary organs
primary lymphatic organs - Answer red bone marrow and thymus (areas where B-cells and T-
cells become immunocompetent
secondary lymphatic organs - Answer lymph nodes, tonsils, an the spleen
tonsils - Answer rings of lymphatic tissue at the entrance of the throat; 3 types: palatine,
lingual, pharyngeal
lymph nodes - Answer functions in the filtration of microorganisms and debris from loose
connective tissue by macrophages and in immune system activation
spleen - Answer site of lymphocyte proliferation, immune surveillance, and immune
activation; cleanses blood; site of fetal erythrocyte production
thymus - Answer site where T-lymphocytes become immunocompetent
surface barriers - Answer skin and mucous membranes
innate immunity - Answer non-specific immunity
organs of the urinary tract - Answer ureters, urinary bladder, urethra
organs of the urinary system - Answer kidneys, urinary bladder, ureters, urethra
functions of the kidneys - Answer - removal of metabolic wastes
- regulation of fluid and electrolyte balance
- regulation of acid base balance
- maintenance of blood pressure
- regulation of erythropoiesis
- performance of other metabolic functions
