A&P 1 functions of organ systems!

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11 Terms

1
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<p>integumentary (skin) system</p><p>(4)</p>

integumentary (skin) system

(4)

  • it protects deeper organs from mechanical, chemical, and bacterial injury, and keeps them from drying out.

  • it excretes salts and urea

  • it aids in body temp regulation

  • produces vitamin D

<ul><li><p>it protects deeper organs from mechanical, chemical, and bacterial injury, and keeps them from drying out.</p></li></ul><ul><li><p>it excretes salts and urea</p></li><li><p>it aids in body temp regulation</p></li><li><p>produces vitamin D</p></li></ul>
2
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<p>skeletal system</p><p>(3)</p>

skeletal system

(3)

  • it provides body support and protection of inner organs

  • it provides levers for muscular action

  • it has cavities which provide a site for blood cell reformation

<ul><li><p>it provides body support and protection of inner organs</p></li><li><p>it provides levers for muscular action</p></li><li><p>it has cavities which provide a site for blood cell reformation </p></li></ul>
3
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<p>muscular system</p><p>(2)</p>

muscular system

(2)

  • primary function is to contract or shorten to allow locomotion, grasping, manipulation of the environment, and facial expressions.

  • it also generates heat 🔥

<ul><li><p>primary function is to contract or shorten to allow locomotion, grasping, manipulation of the environment, and facial expressions.</p></li><li><p>it also generates heat <span data-name="fire" data-type="emoji">🔥</span></p></li></ul>
4
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<p>nervous system</p><p>(2)</p>

nervous system

(2)

  • it allows the body to detect changes in our environment (internal and external) and to respond to those changes by activating appropriate muscles and glands.

  • it helps maintain homeostasis by rapid transmission of electrical signals

<ul><li><p>it allows the body to detect changes in our environment (internal and external) and to respond to those changes by activating appropriate muscles and glands.</p></li><li><p>it helps maintain homeostasis by rapid transmission of electrical signals </p></li></ul>
5
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<p>endocrine system</p><p>(2)</p>

endocrine system

(2)

  • it helps maintain homeostasis and promotes growth and development

  • it produces chemical “messengers” or hormones that travel in the blood to exert their effects on various “target organs” of the body

<ul><li><p>it helps maintain homeostasis and promotes growth and development </p></li><li><p>it produces chemical “messengers” or hormones that travel in the blood to exert their effects on various “target organs” of the body </p></li></ul>
6
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<p>cardiovascular system</p><p>(2)</p>

cardiovascular system

(2)

  • it is a transport system that carries blood containing oxygen, CO2, nutrients, waste, ions, hormones, and other substances to and from (via pumping of the ♡) the tissue cells where exchanges are made

  • antibodies and other protein molecules in the blood act to protect the body

<ul><li><p>it is a transport system that carries blood containing oxygen, CO2, nutrients, waste, ions, hormones, and other substances to and from (via pumping of the ♡) the tissue cells where exchanges are made</p></li><li><p>antibodies and other protein molecules in the blood act to protect the body </p></li></ul>
7
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<p>lymphatic (immune) system </p><p>(3)</p>

lymphatic (immune) system

(3)

  • it picks up fluid leaked from the blood vessels and returns it to the blood

  • it cleanses blood of pathogens and other debris

  • it houses lymphocytes that act via the immune response to protect the body from antigens

<ul><li><p>it picks up fluid leaked from the blood vessels and returns it to the blood</p></li><li><p>it cleanses blood of pathogens and other debris</p></li><li><p>it houses lymphocytes that act via the immune response to protect the body from antigens </p></li></ul>
8
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<p>respiratory system </p><p>(2)</p>

respiratory system

(2)

  • it keeps the blood continuously supplied with oxygen while removing CO2

  • it contributes to the acid-base balance of the blood via its carbonic acid-bicarbonate buffer system

<ul><li><p>it keeps the blood continuously supplied with oxygen while removing CO2</p></li><li><p>it contributes to the acid-base balance of the blood via its carbonic acid-bicarbonate buffer system</p></li></ul>
9
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<p>digestive system</p><p>(2)</p>

digestive system

(2)

  • it breaks down ingested food into minute particles which can be absorbed into the blood for delivery to the body cells

  • undigested residue is removed from the body as feces

<ul><li><p>it breaks down ingested food into minute particles which can be absorbed into the blood for delivery to the body cells</p></li><li><p>undigested residue is removed from the body as feces</p></li></ul>
10
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<p>urinary system </p><p>(2)</p>

urinary system

(2)

  • it rids the body of nitrogen-containing wastes (urea, uric acid, ammonia) which result from the breakdown of proteins and nucleic acids by body cells

  • it maintains water, electrolytes, and acid-base balance of blood

<ul><li><p>it rids the body of nitrogen-containing wastes (urea, uric acid, ammonia) which result from the breakdown of proteins and nucleic acids by body cells</p></li><li><p>it maintains water, electrolytes, and acid-base balance of blood</p></li></ul>
11
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<p>reproductive system</p><p>(2)M/F</p>

reproductive system

(2)M/F

MALE: provides germ cells (sperm) for continuation of species

FEMALE: provides germ cells (eggs); the female uterus houses the developing fetus until birth; mammary glands provide nutrition for the infant

<p><strong><em>MALE:</em> </strong> provides germ cells (sperm) for continuation of species </p><p><strong><em>FEMALE: </em></strong>provides germ cells (eggs); the female uterus houses the developing fetus until birth; mammary glands provide nutrition for the infant </p>