Human Body Systems

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Human Body Systems
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Organization of The Body

• The eleven organ systems of the human body work
  together to maintain homeostasis
• Homeostasis process which organisms maintain a
  relatively stable internal environment

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Human Organ Systems
Figure 35-2 Human Organ Systems Part I
Section 35-1
Nervous System
Integumentary System
Skeletal System
Muscular System
Circulatory System
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Figure 35-2 Human Organ Systems Part I
Section 35-1
Nervous System
Integumentary System
Skeletal System
Muscular System
Circulatory System
5
Figure 35-2 Human Organ Systems Part I
Section 35-1
Nervous System
Integumentary System
Skeletal System
Muscular System
Circulatory System
6
Figure 35-2 Human Organ Systems Part I
Section 35-1
Nervous System
Integumentary System
Skeletal System
Muscular System
Circulatory System
7
Figure 35-2 Human Organ Systems Part I
Section 35-1
Nervous System
Integumentary System
Skeletal System
Muscular System
Circulatory System
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Figure 35-2 Human Organ Systems Part 2
Section 35-1
Respiratory System
Digestive System
Excretory System
Endocrine System
Reproductive System
Lymphatic System
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Nervous System

• Brain, Spinal cord, periperal nerves
• Function Coordinates the bodys response to
  changes in its internal and external environments

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Nervous System
Figure 35-2 Human Organ Systems Part I
Section 35-1
Nervous System
Integumentary System
Skeletal System
Muscular System
Circulatory System
11
Integumentary System

• Skin, hair, nails, sweat and oil glands
• Function Serves as a barrier against infection
  and injury helps to regulate body temperature
  provides protection against ultraviolet radiation
  from the sun

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Figure 35-2 Human Organ Systems Part I
Section 35-1
Nervous System
Integumentary System
Skeletal System
Muscular System
Circulatory System
13
Respiratory System

• Nose, pharynx, larynx, trachea, bronchi,
  bronchiales, lungs
• Function Provides oxygen needed for cellular
  respiration and remove excess carbon dioxide from
  the body

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Figure 35-2 Human Organ Systems Part 2
Section 35-1
Respiratory System
Digestive System
Excretory System
Endocrine System
Reproductive System
Lymphatic System
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Digestive System

• Mouth, pharynx, esophagus, stomach, small and
  large intestine
• Function Converts foods into simpler molecules
  that can be used by the cells of the body
  absorbs food

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Figure 35-2 Human Organ Systems Part 2
Section 35-1
Respiratory System
Digestive System
Excretory System
Endocrine System
Reproductive System
Lymphatic System
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Excretory System

• Skin, lungs, kidneys, ureters, urinary bladder,
  urethra
• Function Eliminates waste products of metabolism
  from the body maintains homeostasis

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Figure 35-2 Human Organ Systems Part 2
Section 35-1
Respiratory System
Digestive System
Excretory System
Endocrine System
Reproductive System
Lymphatic System
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Skeletal System

• Bones, cartilage, ligaments, tendons
• Function Supports the body protects internal
  organs allows movement stores mineral reserves
  provides a site for blood cell formation

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Figure 35-2 Human Organ Systems Part I
Section 35-1
Nervous System
Integumentary System
Skeletal System
Muscular System
Circulatory System
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Muscular System

• Skeletal muscle, smooth muscle, cardiac muscle
• Function Works with skeletal system to produce
  voluntary movement helps to circulate blood and
  move food through the digestive system

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Figure 35-2 Human Organ Systems Part I
Section 35-1
Nervous System
Integumentary System
Skeletal System
Muscular System
Circulatory System
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Circulatory System

• Heart, Blood vessels, blood
• Function Brings oxygen, nutrients, and hormones
  to cells fights infection regulates body
  temperature

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Figure 35-2 Human Organ Systems Part I
Section 35-1
Nervous System
Integumentary System
Skeletal System
Muscular System
Circulatory System
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Endocrine System

• Hypothalamus, pituitary, thyroid, parathyroids,
  adrenals, pancreas, ovaries(in females), testes
  (in males)
• Function Controls growth, development,
  metabolism, and reproduction

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Figure 35-2 Human Organ Systems Part 2
Section 35-1
Respiratory System
Digestive System
Excretory System
Endocrine System
Reproductive System
Lymphatic System
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Reproductive System

• Testes, epididymis, vas deferens, urethra, and
  penis (in males) Ovaries, fallopian tubes,
  uterus, vagina (in females).
• Produces reproductive cells in females, nurtures
  and protects developing embryo

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Figure 35-2 Human Organ Systems Part 2
Section 35-1
Respiratory System
Digestive System
Excretory System
Endocrine System
Reproductive System
Lymphatic System
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Lymphatic System

• White blood cells, thymus, spleen, lymph nodes,
  lymph vessels
• Helps protect the body from disease collects
  fluid lost from blood vessels and returns the
  fluid to the circulatory system.