HEART & CARDIOVASCULAR
This ECG component represents ventricular repolarization.
T wave
Molecules on pathogens recognized by the immune system.
antigens
The phase of breathing when air enters the lungs.
inspiration
This structure connects the throat to the stomach.
Esophagus
Tissue type lining the trachea.
pseudostratified columnar epithelium
The QRS complex represents which cardiac event?
ventricular depolarization
Phagocytosis and inflammation belong to this type of immunity.
Innate immunity
This structure prevents food from entering the airway during swallowing.
Epiglottis
This small intestine section contains Brunner’s glands.
Duodenum
This tunic lines the inner surface of blood vessels.
Tunica intima
This structure initiates the heartbeat.
SA node
This leukocyte fights parasitic worms and participates in allergic reactions.
Eosinophil
Violent coughing can be triggered by stimulation at this tracheal landmark.
Carina
This structure protects the duodenum from acidic chyme by secreting alkaline mucus.
Brunner's glands
Aggregated lymphoid tissue found in the ileum.
Peyer's patches
These junctions connect cardiac cells and contain gap junctions.
Intercalated discs
Lymph nodes perform this major function.
filtering pathogens from lymph
Gas exchange occurs in these structures.
Alveoli/Alveoar sacs
These folds allow the stomach to expand after eating.
Rugae
Mechanical digestion refers to this process.
physical breakdown of food without chemical change?
This protein in red blood cells binds oxygen.
Hemoglobin
Blood type A+ contains these antibodies.
anti-B antibodies
The space between the vocal folds.
Glottis
These cells produce the inactive precursor of pepsin.
Chief cells
Pressure difference causing airflow from high to low pressure.
pressure gradient