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Download Anatomy Heart Kidney Brain
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Circulatory System 4 chambers of the Heart Atria AV valves AV SL valve AV Ventricles Bicuspid SL valve Pathway of Blood R. atria Tricuspid Valve R. Ventricle Pulmonary Valve Pulmonary artery Pulmonary capillaries Pulmonary vein Pulmonary Circulation L. atria Bicuspid Valve L. Ventricle Aortic Valve Arteries (Aorta 1st) Capillaries Veins (Venae Cavae last) Systemic Circulation Why does blood flow only one way? Valves – cup shaped connective tissue Chordae tendineae Papillary muscle Ductus arteriosus Connects pulmonary artery to Aorta – prevents flow to lungs Urinary System Organs • Kidneys are major excretory organs • Urinary bladder is the temporary storage reservoir for urine • Ureters transport urine from the kidneys to the bladder • Urethra transports urine out of the body Kidney Functions • Removal of toxins, metabolic wastes, and excess ions from the blood • Regulation of blood volume, chemical composition, and pH Kidney Functions: Adrenal Gland • Gluconeogenesis during prolonged fasting Making glucose from fat or protein • Endocrine functions Hormones – Renin: regulation of blood pressure and kidney function – Erythropoietin: regulation of RBC production • Activation of vitamin D Calcium absorption Inferior vena cava Adrenal gland Aorta Renal artery Renal vein Kidney Ureter Rectum (cut) Uterus (part of female reproductive system) Urinary bladder Urethra Figure 25.1 Cortical nephron Juxtamedullary nephron Figure 25.5 Thalamus Choroid plexus Pineal Gland Hypothalamus Pituitary Gland Cerebellum Pons Midbrain Medulla
