List of Systems

<h3>List of mammalian organ systems</h3>

<p>There are eleven major organ systems found in mammals.

<a href="http://en.wikipedia.org/wiki/Mammal" title="Mammal">Mammals</a> such as humans have a variety of organ systems. </p>

<p>

These specific systems are also widely studied in <a href="http://en.wikipedia.org/wiki/Human_anatomy" title="Human anatomy">human anatomy</a>.</p>

<ul>

<li><a href="http://en.wikipedia.org/wiki/Circulatory_system" title="Circulatory system">Circulatory system</a>: pumping and channeling <a href="http://en.wikipedia.org/wiki/Blood" title="Blood">blood</a> to and from the <a href="http://en.wikipedia.org/wiki/Body" title="Body">body</a> and <a href="http://en.wikipedia.org/wiki/Lung" title="Lung">lungs</a> with <a href="http://en.wikipedia.org/wiki/Heart" title="Heart">heart</a>, <a href="http://en.wikipedia.org/wiki/Blood" title="Blood">blood</a> and <a href="http://en.wikipedia.org/wiki/Blood_vessel" title="Blood vessel">blood vessels</a>.</li>

<li><a href="http://en.wikipedia.org/wiki/Digestive_system" title="Digestive system" class="mw-redirect">Digestive system</a>: <a href="http://en.wikipedia.org/wiki/Digestion" title="Digestion">digestion</a> and processing food with <a href="http://en.wikipedia.org/wiki/Salivary_gland" title="Salivary gland">salivary glands</a>, <a href="http://en.wikipedia.org/wiki/Esophagus" title="Esophagus">esophagus</a>, <a href="http://en.wikipedia.org/wiki/Stomach" title="Stomach">stomach</a>, <a href="http://en.wikipedia.org/wiki/Liver" title="Liver">liver</a>, <a href="http://en.wikipedia.org/wiki/Gallbladder" title="Gallbladder">gallbladder</a>, <a href="http://en.wikipedia.org/wiki/Pancreas" title="Pancreas">pancreas</a>, <a href="http://en.wikipedia.org/wiki/Intestine" title="Intestine">intestines</a>, <a href="http://en.wikipedia.org/wiki/Colon_%28anatomy%29" title="Colon (anatomy)">colon</a>, <a href="http://en.wikipedia.org/wiki/Rectum" title="Rectum">rectum</a> and <a href="http://en.wikipedia.org/wiki/Anus" title="Anus">anus</a>.</li>

<li><a href="http://en.wikipedia.org/wiki/Endocrine_system" title="Endocrine system">Endocrine system</a>: communication within the body using <a href="http://en.wikipedia.org/wiki/Hormone" title="Hormone">hormones</a> made by <a href="http://en.wikipedia.org/wiki/Endocrine_gland" title="Endocrine gland">endocrine glands</a> such as the <a href="http://en.wikipedia.org/wiki/Hypothalamus" title="Hypothalamus">hypothalamus</a>, <a href="http://en.wikipedia.org/wiki/Pituitary" title="Pituitary" class="mw-redirect">pituitary</a> gland, <a href="http://en.wikipedia.org/wiki/Pineal_body" title="Pineal body" class="mw-redirect">pineal body</a> or pineal gland, <a href="http://en.wikipedia.org/wiki/Thyroid" title="Thyroid">thyroid</a>, <a href="http://en.wikipedia.org/wiki/Parathyroid" title="Parathyroid" class="mw-redirect">parathyroids</a> and <a href="http://en.wikipedia.org/wiki/Adrenal" title="Adrenal" class="mw-redirect">adrenals</a>, i.e., adrenal glands.</li>

<li><a href="http://en.wikipedia.org/wiki/Excretory_system" title="Excretory system">Excretory system</a>: <a href="http://en.wikipedia.org/wiki/Kidney" title="Kidney">kidneys</a>, <a href="http://en.wikipedia.org/wiki/Ureter" title="Ureter">ureters</a>, <a href="http://en.wikipedia.org/wiki/Urinary_bladder" title="Urinary bladder">bladder</a> and <a href="http://en.wikipedia.org/wiki/Urethra" title="Urethra">urethra</a> involved in fluid balance, <a href="http://en.wikipedia.org/wiki/Electrolyte" title="Electrolyte">electrolyte</a> balance and excretion of <a href="http://en.wikipedia.org/wiki/Urine" title="Urine">urine</a>.</li>

<li><a href="http://en.wikipedia.org/wiki/Immune_System" title="Immune System" class="mw-redirect">Immune System</a>: structures involved in the transfer of <a href="http://en.wikipedia.org/wiki/Lymph" title="Lymph">lymph</a> between <a href="http://en.wikipedia.org/wiki/Tissue_%28biology%29" title="Tissue (biology)">tissues</a> and the <a href="http://en.wikipedia.org/wiki/Blood_stream" title="Blood stream" class="mw-redirect">blood stream</a>, the lymph and the <a href="http://en.wikipedia.org/wiki/Lymph_node" title="Lymph node">nodes</a> and <a href="http://en.wikipedia.org/wiki/Lymph_vessel" title="Lymph vessel" class="mw-redirect">vessels</a> that transport it including the <a href="http://en.wikipedia.org/wiki/Immune_system" title="Immune system">Immune system</a>: defending against <a href="http://en.wikipedia.org/wiki/Disease" title="Disease">disease</a>-causing agents with <a href="http://en.wikipedia.org/wiki/Leukocyte" title="Leukocyte" class="mw-redirect">leukocytes</a>, <a href="http://en.wikipedia.org/wiki/Tonsil" title="Tonsil">tonsils</a>, <a href="http://en.wikipedia.org/wiki/Adenoid" title="Adenoid">adenoids</a>, <a href="http://en.wikipedia.org/wiki/Thymus" title="Thymus">thymus</a> and <a href="http://en.wikipedia.org/wiki/Spleen" title="Spleen">spleen</a>.</li>

<li><a href="http://en.wikipedia.org/wiki/Integumentary_system" title="Integumentary system">Integumentary system</a>: <a href="http://en.wikipedia.org/wiki/Skin" title="Skin">skin</a>, <a href="http://en.wikipedia.org/wiki/Hair" title="Hair">hair</a> and <a href="http://en.wikipedia.org/wiki/Nail_%28anatomy%29" title="Nail (anatomy)">nails</a>.</li>

<li><a href="http://en.wikipedia.org/wiki/Muscular_system" title="Muscular system">Muscular system</a>: movement with <a href="http://en.wikipedia.org/wiki/Muscle" title="Muscle">muscles</a>.</li>

<li><a href="http://en.wikipedia.org/wiki/Nervous_system" title="Nervous system">Nervous system</a>: collecting, transferring and processing information with <a href="http://en.wikipedia.org/wiki/Brain" title="Brain">brain</a>, <a href="http://en.wikipedia.org/wiki/Spinal_cord" title="Spinal cord">spinal cord</a> and <a href="http://en.wikipedia.org/wiki/Nerve" title="Nerve">nerves</a>.</li>

<li><a href="http://en.wikipedia.org/wiki/Reproductive_system" title="Reproductive system">Reproductive system</a>: the <a href="http://en.wikipedia.org/wiki/Sex_organs" title="Sex organs" class="mw-redirect">sex organs</a>, such as <a href="http://en.wikipedia.org/wiki/Ovary" title="Ovary">ovaries</a>, <a href="http://en.wikipedia.org/wiki/Fallopian_tube" title="Fallopian tube">fallopian tubes</a>, <a href="http://en.wikipedia.org/wiki/Uterus" title="Uterus">uterus</a>, <a href="http://en.wikipedia.org/wiki/Vagina" title="Vagina">vagina</a>, <a href="http://en.wikipedia.org/wiki/Mammary_gland" title="Mammary gland">mammary glands</a>, <a href="http://en.wikipedia.org/wiki/Testes" title="Testes" class="mw-redirect">testes</a>, <a href="http://en.wikipedia.org/wiki/Vas_deferens" title="Vas deferens">vas deferens</a>, <a href="http://en.wikipedia.org/wiki/Seminal_vesicle" title="Seminal vesicle">seminal vesicles</a>, <a href="http://en.wikipedia.org/wiki/Prostate" title="Prostate">prostate</a> and <a href="http://en.wikipedia.org/wiki/Penis" title="Penis">penis</a>.</li>

<li><a href="http://en.wikipedia.org/wiki/Respiratory_system" title="Respiratory system">Respiratory system</a>: the organs used for <a href="http://en.wikipedia.org/wiki/Breathing" title="Breathing">breathing</a>, the <a href="http://en.wikipedia.org/wiki/Pharynx" title="Pharynx">pharynx</a>, <a href="http://en.wikipedia.org/wiki/Larynx" title="Larynx">larynx</a>, <a href="http://en.wikipedia.org/wiki/Vertebrate_trachea" title="Vertebrate trachea">trachea</a>, <a href="http://en.wikipedia.org/wiki/Bronchi" title="Bronchi" class="mw-redirect">bronchi</a>, <a href="http://en.wikipedia.org/wiki/Lung" title="Lung">lungs</a> and <a href="http://en.wikipedia.org/wiki/Thoracic_diaphragm" title="Thoracic diaphragm">diaphragm</a>.</li>

<li><a href="http://en.wikipedia.org/wiki/Human_skeleton" title="Human skeleton">Skeletal system</a>: structural support and protection with <a href="http://en.wikipedia.org/wiki/Bone" title="Bone">bones</a>, <a href="http://en.wikipedia.org/wiki/Cartilage" title="Cartilage">cartilage</a>, <a href="http://en.wikipedia.org/wiki/Ligament" title="Ligament">ligaments</a> and <a href="http://en.wikipedia.org/wiki/Tendon" title="Tendon">tendons</a>.</li>

</ul>