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Human Body Systems. 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. Human Organ Systems. Figure 35-2 Human Organ Systems Part I. Section 35-1.
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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
Human Organ Systems Figure 35-2 Human Organ Systems Part I Section 35-1 Nervous System Integumentary System Skeletal System Muscular System Circulatory System
Figure 35-2 Human Organ Systems Part I Section 35-1 Nervous System Integumentary System Skeletal System Muscular System Circulatory System
Figure 35-2 Human Organ Systems Part I Section 35-1 Nervous System Integumentary System Skeletal System Muscular System Circulatory System
Figure 35-2 Human Organ Systems Part I Section 35-1 Nervous System Integumentary System Skeletal System Muscular System Circulatory System
Figure 35-2 Human Organ Systems Part I Section 35-1 Nervous System Integumentary System Skeletal System Muscular System Circulatory System
Figure 35-2 Human Organ Systems Part 2 Section 35-1 Respiratory System Digestive System Excretory System Endocrine System Reproductive System Lymphatic System
Nervous System • Brain, Spinal cord, periperal nerves • Function: Coordinates the body’s response to changes in its internal and external environments
Nervous System Figure 35-2 Human Organ Systems Part I Section 35-1 Nervous System Integumentary System Skeletal System Muscular System Circulatory System
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
Figure 35-2 Human Organ Systems Part I Section 35-1 Nervous System Integumentary System Skeletal System Muscular System Circulatory System
Respiratory System • Nose, pharynx, larynx, trachea, bronchi, bronchiales, lungs • Function: Provides oxygen needed for cellular respiration and remove excess carbon dioxide from the body
Figure 35-2 Human Organ Systems Part 2 Section 35-1 Respiratory System Digestive System Excretory System Endocrine System Reproductive System Lymphatic System
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
Figure 35-2 Human Organ Systems Part 2 Section 35-1 Respiratory System Digestive System Excretory System Endocrine System Reproductive System Lymphatic System
Excretory System • Skin, lungs, kidneys, ureters, urinary bladder, urethra • Function: Eliminates waste products of metabolism from the body; maintains homeostasis
Figure 35-2 Human Organ Systems Part 2 Section 35-1 Respiratory System Digestive System Excretory System Endocrine System Reproductive System Lymphatic System
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
Figure 35-2 Human Organ Systems Part I Section 35-1 Nervous System Integumentary System Skeletal System Muscular System Circulatory System
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
Figure 35-2 Human Organ Systems Part I Section 35-1 Nervous System Integumentary System Skeletal System Muscular System Circulatory System
Circulatory System • Heart, Blood vessels, blood • Function: Brings oxygen, nutrients, and hormones to cells; fights infection; regulates body temperature
Figure 35-2 Human Organ Systems Part I Section 35-1 Nervous System Integumentary System Skeletal System Muscular System Circulatory System
Endocrine System • Hypothalamus, pituitary, thyroid, parathyroids, adrenals, pancreas, ovaries(in females), testes (in males) • Function: Controls growth, development, metabolism, and reproduction
Figure 35-2 Human Organ Systems Part 2 Section 35-1 Respiratory System Digestive System Excretory System Endocrine System Reproductive System Lymphatic System
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
Figure 35-2 Human Organ Systems Part 2 Section 35-1 Respiratory System Digestive System Excretory System Endocrine System Reproductive System Lymphatic System
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.
