These cells are responsible for immune defense in blood.
Leukocytes
These cells engulf pathogens and debris.
Phagocytes
This gas diffuses from tissues into blood during internal respiration.
Carbon dioxide
This process physically breaks food into smaller pieces.
Mechanical digestion
This kidney structure contains the renal pyramids.
Renal medulla
This WBC is associated with allergic reactions and histamine release.
Basophil
These proteins are released by virus-infected cells to warn neighboring cells.
Interferons
This muscle group elevates ribs during inspiration.
External intercostals
This structure prevents food from entering the airway during swallowing.
Epiglottis
This ovarian structure contains immature oocytes.
Follicle
This plasma protein group includes antibodies.
Globulins
This structure forms pores in pathogen membranes during complement activation.
Membrane attack complex
This respiratory disorder commonly involves bronchoconstriction and mucus production.
Asthma
This digestive secretion neutralizes acidic chyme in the duodenum.
Bicarbonate
This female reproductive phase follows ovulation.
Luteal phase
This blood condition results in excessive blood viscosity due to elevated RBC count.
Polycythemia
This type of T cell coordinates immune responses using cytokines.
Helper T cell
This condition results when intrapleural pressure equals atmospheric pressure.
Pneumothorax
This peritoneal structure acts like an apron over abdominal organs.
This specialized nephron structure detects NaCl concentration in tubular fluid.
Macula densa
This blood compatibility reaction causes RBC agglutination.
Transfusion reaction
This adaptive immune response directly targets infected host cells.
Cellular immunity
This airway branch lacks cartilage but contains smooth muscle.
Bronchiole
This GI tract plexus regulates secretion and blood flow.
This intrinsic renal mechanism adjusts afferent arteriole tone in response to tubular flow.
Tubuloglomerular feedback