Chapter 45 Overview of Respiratory Function Ventilation of the Lung Key Points Respiratory function 1. The respiratory system’s primary function is the transport of oxygen and carbon dioxide between the environment…
Chapter 1 The Molecular and Cellular Bases of Physiological Regulation Key Points 1. All physiological change is mediated by proteins. 2. Protein function depends on protein shape and shape changes. 3. A series…
Chapter 52 Acid-Base Homeostasis Key Points Acid-Base Regulation 1. Relative constancy of the body’s pH is essential because metabolism requires enzymes that operate at an optimal pH. 2. Hydrogen ion concentration is…
Chapter 21 The Heart as a Pump Key Points 1. Each heartbeat consists of ventricular systole and ventricular diastole. 2. Cardiac output equals heart rate multiplied by stroke volume. 3. Increases in end-diastolic…
Chapter 32 Postabsorptive Nutrient Utilization Key Points 1. Homeostatic mechanisms balance the supply and demand of almost all nutrients. The furnace 1. The tricarboxylic acid (or Krebs) cycle is the major energy-yielding…
Chapter 42 Solute Reabsorption Key Points 1. The renal tubule reabsorbs filtered substances. 2. Renal tubule function may be assessed by determining fractional excretion rate. 3. The proximal tubule reabsorbs the bulk of…
Chapter 22 The Systemic and Pulmonary Circulations Key Points 1. Blood pressure represents a potential energy that propels blood through the circulation. 2. Vascular resistance is defined as perfusion pressure divided by…
Chapter 48 Gas Transport in the Blood Key Points Oxygen transport 1. A small amount of oxygen is transported in solution in plasma, but most is in combination with hemoglobin. 2. A…
Chapter 20 The Electrocardiogram Key Points 1. An electrocardiogram is simply a graph, made by a voltmeter that is equipped to plot voltage as a function of time. 2. Atrial depolarization, ventricular…
Chapter 33 The Endocrine System Key Points General concepts 1. Hormones are chemicals produced by specific tissues that are transported by the vascular system to affect other tissues at low concentrations….
