Post on 04-Jan-2016
BioEd Online
Introduction to Organ Systems
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Organ Systems
Cardiovascular
Respiratory
Nervous
Digestive
Muscular
Skeletal
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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
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Diagram of Human Heart
Anterior view
Aorta
Pulmonary artery
Left atrium
Mitral Valve
Left Ventricle
Superior vena cava
Right atrium
Tricuspid Valve
Right Ventricle
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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
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Respiratory System Diagram
Nasal Passage
Pharynx
Trachea
Bronchus
Larynx
Bronchioles
Alveoli
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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
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Neuron Diagram
Dendrite
Axon terminals
Cell body
Axon
Myelin sheath
Node of Ranvier
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Diagram of Human Brain
Cerebrum
Corpus callosum
Cerebellum
ThalamusHypothalamus
MidbrainPons
Medulla oblongataSpinal cord
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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)
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Human Digestive System Diagram
Villi
Mouth
Liver
Pharynx
StomachLarge Intestine
Small Intestine
Esophagus
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Muscular System Parts of Muscular System
Muscles Connective tissue
Functions of Muscular System Movement of skeleton Generate heat for the body Maintain posture
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Human Muscular System Diagram
DeltoidPectoralis major
Biceps brachi
Gluteus maximus
Rectus femoris
Gastrocnemius
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Skeletal System
Parts of skeletal system bones cartilage joints
Functions of skeletal system Framework and support Protection Storage for excess calcium
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Human Skeleton Diagram
Sternum
Skull
Clavicle
Ribs
Pelvis
Femur
Patella
Tibia
Scapula
Humerus
Ulna
Radius
Carpals Metacarpals
Fibula
Tarsals
Metatarsals
Phalanges
Phalanges