WorksheetsThe Immune System + Vessels
Total questions: 13
Worksheet time: 7mins
Blood pressure is the highest in the
venules
veins
arteries
capillaries
lymphatic capillaries
Functionally, there are no valves in arteries (as opposed to in veins) because
Valves direct blood only toward the heart and arterial blood passes away from the heart.
Valves would tear apart from the high arterial pressure.
Arteries get more atherosclerosis, so valves would cause lethal blood clotting.
The blood pressure in arteries is high enough that there is no backflow of blood.
false, there are valves in arteries
Which of the following would best explain why most people are sick more often as children than as adults in their 20s through 50s?
The immune system does not appear until the preteen years.
In children, the thymus is so active in fighting bacteria that it produces stronger symptoms of disease.
Because of their small size, children's bodies cannot contain as much lymphoid tissue as those of adults
During childhood, we build up many varieties of memory lymphocytes, which provide immunity to more and more antigens during adulthood
Adults have fewer infections because their body temperature becomes less favorable for pathogens as they age
Lymphatic vessels perform all of the following functions EXCEPT which one?
Returns excess tissue fluid back to the bloodstream.
Returns leaked blood proteins back to the bloodstream.
Serves as a pathway for absorption of fats.
carry oxygen and metabolic waste throughout the body.
Transports white blood cells.
The systemic circuit supplies all of the following except
oxygenated blood to the brain.
oxygenated blood to the tissue of the lungs.
oxygenated blood to the muscles of the upper extremity.
deoxygenated blood to the lungs for gas exchange.
oxygenated blood to the entire body
The bulges that give lymph vessels a string-of-beads appearance are really
temporary constrictions caused by bulging skeletal muscles that squeeze the lymph vessel.
lymph nodes
weakened areas in the walls of the vessels.
nuclei
pockets for valves.
Identify the type of cells that directly destroy infected cells, abnormal cells, and cancerous cells.
B memory cells
Tc memory cells
B effector cells
Th effector cells
Tc effector cells
Lymphoid organs located in the mucosal lining of the pharynx
tonsils
salivary glands
uvulas
tongue
epiglottis
Two-lobed lymphoid organ located posterior to the sternum.
spleen
thymus
lacteals
heart
tonsils
Identify which specific cell assists in 'sounding the alarm' for the specific (or adaptive) immune response
plasma cell
effector B cells
memory Tc cells
effector Tc cells
Th cells
Identify the specific type of cell that produces free floating antibodies
leukocytes
memory Tc cells
plasma cells
memory Th cells
macrophages
The lymphatic capillaries are
completely impermeable.
as permeable as blood capillaries.
less permeable than blood capillaries.
smaller in diameter when compared to arteries
more permeable than blood capillaries.
Which of the following are NOT targets of the lymphatic system?
abnormal cells
keratinocytes
infected cells
toxins
pathogens
thrombocytes
viruses
