Human Body Systems - Paulding County School District

Human Body Systems - Paulding County School District

Human Body Systems Nervous System Functions Controls all bodys functions Senses and recognizes information from inside and outside of the

body Nervous System Main Parts Brain Nerves Spinal cord

What it helps you do Move Sense things from the environment And much more! Interactions with other systems:

All systems helps keep the systems functioning Integumentary (Skin) System Function 1st line of defense against disease Helps maintain body temperature Keeps fluids inside

Main Parts Skin Sweat glands Hair nails

What it helps you do Helps you maintain fluids (dont dehydrate) Helps you know your environment by feeling things around you Protect organs Remove waste

Interactions with other systems Works with the excretory and the immune system to help remove cellular waste and protect us from disease. Skeletal System Support and protect body parts.

Helps maintain homeostasis Makes red blood cells (red bone marrow) Skeletal System: Parts & Function Main parts: Bones Cartilage

Connective Tissue Function: Helps support your body parts Helps support your body during movement Helps protect your major organs: Skull protects the brain

Sternum and ribs protects the heart and lungs Vertebra protect the spinal cord Skeletal System Interactions Works with the muscular system to help you move.

Muscular System Function Helps you move. Moves materials through the body Main parts Muscles

Tendons Ligaments Muscles in organs Three types of muscles found in the body: Cardiac found in the

_______________ (____________ muscle) _______________ - attaches to the bones (____________ muscle) Smooth lines ____________ and vessels. (____________muscle)

Muscular Systems help you Helps you move Helps you move materials through the body Maintain homeostasis Skeletal muscles work in pairs: one contracts and the other returns to its original length.

Interactions with other systems Works with the skeletal system to help you move by your muscles pulling on your bones. Works with the nervous system and controls the types of movements: voluntary (under your control ex: talking) and involuntary (NOT under your control ex: heartbeat)

Three types of muscles found in the body: Cardiac found in the heart (____________ muscle) Skeletal- attaches to the bones (____________ muscle) Smooth lines organs and vessels.

(____________muscle) Circulatory (Cardiovascular) System Function Carries blood and nutrients to the cells of the body Carries waste away from the cells, such as carbon dioxide.

Main Parts Heart Blood (made up of plasma, red blood cells, white blood cells & platelets) Veins Arteries What it helps you do

Arteries help carry oxygenated blood away from the heart Veins carry un-oxygenated blood toward the heart Capillaries are tiny blood vessels that connect arteries and veins. Gas exchange takes place here.

Interactions with other systems: Works with the respiratory system to help you transport oxygen and carbon dioxide. Works with the excretory to help remove waste from the body. Works with the digestive system to transport nutrients.

Works with the muscular system to help circulate nutrients. Respiratory System Function Puts oxygen into the body & removes Carbon dioxide

Main parts Lungs

Nasal passages Throat Nose What it helps you do Breathe Sustain life

Interactions with other systems: Circulatory transports vital materials to the cells Digestive System Function Takes food & breaks it down into nutrients the body needs

Digestive System Main parts: Mouth Stomach Liver Pancreas

Small intestines Large intestines Rectum What it helps you do It provides nutrients to your bodys cells

Interactions with other systems: Circulatory helps transport nutrients to the bodys cells Excretory System Functions Removes wastes from blood

Removes harmful substances from blood Regulates body fluids Excretory System Main Parts Kidneys

Urinary bladder What it helps you do Maintain homeostasis Removes waste What system does it interact with:

Circulatory to help remove waste from the blood Immune System Functions Fights off disease

Immune System Main Parts Lymph nodes White blood cells Skin What it helps you do

Maintain a healthy body Interactions with other systems: Circulatory, integumentary, lymphatic helps fight diseases Reproductive System

Functions Produce offspring Males- make sperm Females- make eggs Reproductive System Main Parts

Male Penis Testes Female Uterus Ovary

Vagina What it helps you do Continuation of the species

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