BioEd Online Introduction to Organ Systems. www.BioEdOnline.org BioEd Online Organ Systems Cardiovascular Respiratory Nervous Digestive Muscular Skeletal.

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Presentation transcript:

BioEd Online Introduction to Organ Systems

BioEd Online Organ Systems Cardiovascular Respiratory Nervous Digestive Muscular Skeletal

BioEd Online Cardiovascular System This system includes the heart and the blood vessels Blood travels through the vessels to bring oxygen and food to all cells Blood also carries away the waste products of metabolism Erythrocytes White blood cells

BioEd Online Diagram of Human Heart Anterior view Aorta Pulmonary artery Left atrium Mitral Valve Left Ventricle Superior vena cava Right atrium Tricuspid Valve Right Ventricle BioEd Online

BioEd Online Respiratory System Respiratory system provides oxygen to body cells and removes carbon dioxide It includes the lungs and the airways Breathing, or external respiration, is the taking in of oxygen and the giving off of carbon dioxide Internal respiration refers to the gas exchange between the blood and body cells Exhalation Inhalation

BioEd Online Respiratory System Diagram Nasal Passage Pharynx Trachea Bronchus Larynx Bronchioles Alveoli

BioEd Online Nervous System Controls and coordinates conscious and unconscious actions Two major division of the Nervous System Central Nervous System (CNS): brain and spinal cord Peripheral Nervous System (PNS): cranial nerves and spinal nerves Neurons (nerve cells) transmit electrical impulses throughout the body Neuroglia is the connective tissue that supports and protects the nervous tissue BioEd Online

BioEd Online Neuron Diagram Dendrite Axon terminals Cell body Axon Myelin sheath Node of Ranvier BioEd Online

BioEd Online Diagram of Human Brain Cerebrum Corpus callosum Cerebellum Thalamus Hypothalamus Midbrain Pons Medulla oblongata Spinal cord BioEd Online

BioEd Online Digestive System Responsible for the intake and breakdown of food, absorption of nutrients, and removal of solid waste Structures Gastrointestinal or GI tract (mouth, pharynx or throat, esophagus, stomach, small intestine, large intestine) Accessory (teeth, tongue, mouth, salivary glands, liver, gall bladder, pancreas)

BioEd Online Human Digestive System Diagram Villi Mouth Liver Pharynx Stomach Large Intestine Small Intestine Esophagus

BioEd Online Muscular System Parts of Muscular System Muscles Connective tissue Functions of Muscular System Movement of skeleton Generate heat for the body Maintain posture

BioEd Online Human Muscular System Diagram Deltoid Pectoralis major Biceps brachi Gluteus maximus Rectus femoris Gastrocnemius

BioEd Online Skeletal System Parts of skeletal system bones cartilage joints Functions of skeletal system Framework and support Protection Storage for excess calcium

BioEd Online Human Skeleton Diagram Sternum Skull Clavicle Ribs Pelvis Femur Patella Tibia Scapula Humerus Ulna Radius Carpals Metacarpals Fibula Tarsals Metatarsals Phalanges

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