The Immune System + Vessels

Front

Blood pressure is the highest in the following: venules, veins, arteries, capillaries, lymphatic capillaries.

Back

arteries

Front

Why are there no valves in arteries?

Back

The blood pressure in arteries is high enough that there is no backflow of blood.

Front

Why are most people sick more often as children than as adults in their 20s through 50s?

Back

During childhood, we build up many varieties of memory lymphocytes, which provide immunity to more and more antigens during adulthood.

Front

Lymphatic vessels perform all of the following functions EXCEPT which one?

• returning excess tissue fluid to the bloodstream
• returning leaked blood proteins to the bloodstream
• transporting digested fats
• carry oxygen and metabolic waste throughout the body
• contains lymph

Back

carry oxygen and metabolic waste throughout the body.

Front

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

Back

deoxygenated blood to the lungs for gas exchange

Front

Identify the type of cells that directly destroy infected cells, abnormal cells, and cancerous cells.

Back

T_c effector cells

Front

Lymphoid organs located in the mucosal lining of the pharynx

Back

tonsils

Front

Two-lobed lymphoid organ located posterior to the sternum.

Back

thymus

Front

Identify which specific cell assists in 'sounding the alarm' for the specific (or adaptive) immune response: plasma cell, effector B cells, memory T_c cells, effector T_c cells, T_h cells

Back

T_h cells

Front

Identify the specific type of cell that produces free floating antibodies: leukocytes, memory T_c cells, plasma cells, memory T_h cells, macrophages

Back

plasma cells