BSC 2086 Exam 2 Questions and Answers with Verified Solutions |
Latest Update
QUESTION
Lymphatic capillaries to lymphatic vessels to lymph nodes to larger lymphatic vessels to
lymphatic trunks to right lymphatic duct OR thoracic duct to subclavian veins (back into blood
circulation)
Answer:
What is the path of lymph flow through the body?
QUESTION
lymphedema, decreased immune surveillance, and impaired nutrient absorption (especially fats if
lacteals are involved)
Answer:
What happens when lymph flow is disrupted?
QUESTION
lymph capillaries
Answer:
characteristics: blind-ended, very permeable; endothelial cells overlap like flap-like mini-valves,
allow entry of proteins, pathogens, and cancer cells; found in most tissues except CNS, bone,
teeth, bone marrow; specialized ones in small intestine = lacteals (absorb dietary fats)
QUESTION
lacteal
Answer:
lymphatic capillary in the intestinal villi that absorb dietary lipids and fat-soluble vitamins,
transporting them as chyle
QUESTION
Chyle
Answer:
white or pale yellow substance in lymph that contains fatty substances absorbed by the lacteals
QUESTION
MALT
Answer:
What lymphatic tissue is found in the submucosa of the intestine?
,QUESTION
Peyer's patches
Answer:
large collections of lymphoid follicles/ nodules in the ileum that monitor intestinal bacteria and
generate immune responses
QUESTION
cortex, paracortex, medulla
Answer:
What are the structural parts of a lymph node?
QUESTION
cervical (neck), axillary (armpit), inguinal (groin), thoracic, and abdominal region
Answer:
Where are lymph nodes located?
QUESTION
cortex
Answer:
part of lymph node that mainly has lymphoid follicles with germinal centers (B cells, follicular
dendritic cells, macrophages)
QUESTION
paracortex
Answer:
part of lymph node that mainly has T cells and dendritic cells
QUESTION
medulla
Answer:
part of lymph node that mainly has medullary cords (B cells, plasma cells, macrophages)
QUESTION
B lymphocytes
Answer:
present antigens to helper T cell to assist their own activation; form in the bone marrow and
release antibodies that fight bacterial infections
, QUESTION
T lymphocytes
Answer:
attack cancer cells, viruses, and foreign substances
QUESTION
Macrophages
Answer:
present antigens to T cells which activates it and the macrophage itself
QUESTION
dendritic cells
Answer:
phagocytize pathogens that enter tissues, then enter lymphatics to present antigens to T cells in
lymph node
QUESTION
APCs (antigen presenting cells)
Answer:
What types of cells are these?
- dendritic cells
- macrophages
- B cells
QUESTION
palatine tonsils
Answer:
tonsils on either side of the oropharynx (most commonly removed)
QUESTION
pharyngeal tonsils (adenoids)
Answer:
tonsils in posterior nasopharynx either side of the oropharynx (most commonly removed)
QUESTION
lingual tonils
Answer:
tonsils at base of tongue.
Latest Update
QUESTION
Lymphatic capillaries to lymphatic vessels to lymph nodes to larger lymphatic vessels to
lymphatic trunks to right lymphatic duct OR thoracic duct to subclavian veins (back into blood
circulation)
Answer:
What is the path of lymph flow through the body?
QUESTION
lymphedema, decreased immune surveillance, and impaired nutrient absorption (especially fats if
lacteals are involved)
Answer:
What happens when lymph flow is disrupted?
QUESTION
lymph capillaries
Answer:
characteristics: blind-ended, very permeable; endothelial cells overlap like flap-like mini-valves,
allow entry of proteins, pathogens, and cancer cells; found in most tissues except CNS, bone,
teeth, bone marrow; specialized ones in small intestine = lacteals (absorb dietary fats)
QUESTION
lacteal
Answer:
lymphatic capillary in the intestinal villi that absorb dietary lipids and fat-soluble vitamins,
transporting them as chyle
QUESTION
Chyle
Answer:
white or pale yellow substance in lymph that contains fatty substances absorbed by the lacteals
QUESTION
MALT
Answer:
What lymphatic tissue is found in the submucosa of the intestine?
,QUESTION
Peyer's patches
Answer:
large collections of lymphoid follicles/ nodules in the ileum that monitor intestinal bacteria and
generate immune responses
QUESTION
cortex, paracortex, medulla
Answer:
What are the structural parts of a lymph node?
QUESTION
cervical (neck), axillary (armpit), inguinal (groin), thoracic, and abdominal region
Answer:
Where are lymph nodes located?
QUESTION
cortex
Answer:
part of lymph node that mainly has lymphoid follicles with germinal centers (B cells, follicular
dendritic cells, macrophages)
QUESTION
paracortex
Answer:
part of lymph node that mainly has T cells and dendritic cells
QUESTION
medulla
Answer:
part of lymph node that mainly has medullary cords (B cells, plasma cells, macrophages)
QUESTION
B lymphocytes
Answer:
present antigens to helper T cell to assist their own activation; form in the bone marrow and
release antibodies that fight bacterial infections
, QUESTION
T lymphocytes
Answer:
attack cancer cells, viruses, and foreign substances
QUESTION
Macrophages
Answer:
present antigens to T cells which activates it and the macrophage itself
QUESTION
dendritic cells
Answer:
phagocytize pathogens that enter tissues, then enter lymphatics to present antigens to T cells in
lymph node
QUESTION
APCs (antigen presenting cells)
Answer:
What types of cells are these?
- dendritic cells
- macrophages
- B cells
QUESTION
palatine tonsils
Answer:
tonsils on either side of the oropharynx (most commonly removed)
QUESTION
pharyngeal tonsils (adenoids)
Answer:
tonsils in posterior nasopharynx either side of the oropharynx (most commonly removed)
QUESTION
lingual tonils
Answer:
tonsils at base of tongue.
