Topics: domestic animals, cell, embryology, energy production, tissues, body cavities, body water, water balance, dehydration, blood, leukocytes, erythrocytes, iron metabolism, anemia, polycythemia, hemostasis, blood coagulation, plasma, nervous system, nerve impulse, reflexes, meninges, nervous system, cerebrospinal fluid, central nervous system metabolism, sensory organs, Sensory Receptors, Sensory Receptor Responses, pain, taste, smell, hearing, vision, endocrine system, hormones, pituitary gland, thyroid gland, parathyroid gland, adrenal glands, pancreatic gland, prostaglandins, bones, joints, synovial fluid, bone structure, bone formation, bone repair, Skeletal-Muscle Harnessing, muscle, Skeletal-Muscle Contraction, cardiovascular system, heart, pericardium, blood vessels, lymphatic system, spleen, cardiac contractility, electrocardiogram, heart sounds, heart rate, blood pressure, blood flow, capillary dynamics, respiratory system, respiratory apparatus, pulmonary ventilation, oxygen transport, carbon dioxide transport, respiratory clearance, Avian respiration, urinary system, Glomerular Filtration, Nephron, Extracellular Fluid Volume Regulation, aldosterone, micturition, Renal Clearance, Avian Urinary System, Acid–Base Balance maintenance, digestion, absorption, oral cavity, pharynx, intestines, accessory organs, Gastrointestinal Motility, Ruminant Stomach, Ruminant Metabolism, Ruminant Digestion, body temperature, body heat, hibernation, Hypothermia, Hyperthermia, male reproduction, penis, Spermatogenesis, erection, female reproduction, Ovarian Follicle Activity, Sexual Receptivity, Estrous Cycle, pregnancy, parturition, lactation, Mammogenesis, Lactogenesis, Milk Removal, milk composition