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Sookdeo-Human Body

Skeletal System Function 1.Gives shape & support to your body 2.Protect internal organs 3. Major muscle are attached to bones 4. Blood cells are formed in the center of many 5.Calcium and phosphorus stored in bones
Major Structure of the Skeletal System Bones, joints & ligaments
joints a place where bones meet
cartilage cushion between two bones, helps reduce friction and allows bones to move smoothly
Muscular System Function 1.Make all your movements possible 2.Provide force to move, relax, contract 3. Energy is used and work is done
Voluntary Muscles muscles you control Ex: face, hands, arms, legs
Involuntary Muscles not able to control consciously Ex: heart, stomach, intestines
Three type of muscles smooth, cardiac and skeletal
Functions of the Integumentary System (Skin) Protects internal organs, sensory organ, controls body temperature,produce vitamin D & gets rid of waste
Cancer uncontrolled growth of mutated cells
Melanin Pigment that protects your skin and gives you color
Circulatory System Function Carries blood through the body and removes waste
Parts of the Circulatory System Heart,blood cells, & blood vessels (veins, arteries &capillaries)
The heart A muscle; 2 atrium that receives blood; 2 ventricles that pump blood out of the heart
Arteries Artery-Blood vessels that carry blood away from the heart.
Veins Blood vessels that carry blood back to the heart
Capillaries very small blood vessels that connect arteries and veins
Function of the Respiratory System The main function is to supply the body with oxygen and remove carbon dioxide waste from the body.
Path of the Respiratory System 1. Air enters the nose & mouth. 2. Pharynx 3. Larynx 4. Trachea 5.Bronchi 6. Lung 7. Alveoli (where gases exchange)
Function of the Digestive System Breaks down food into nutrients that is used by the body
Parts of the digestive tract mouth, esophagus, stomach, small intestine, large intestine, rectum and anus
Accessory organs for the digestive system tongue, teeth, salivary glands, liver, gallbladder, and pancreas
Peristalsis muscle contractions that move food through the digestive tract
Bacteria in digestion Feed on undigested materials Make Vitamin K & two B vitamins
Functions of Excretory System (Urinary) Gets rid of waste from the blood
Organs of the Excretory System Two kidneys (filter blood), ureter, bladder, urethra
Function of the Nervous System The nervous system allows your body to adjust to changing stimuli.
Central Nervous System Made up of the brain and spinal cord
Peripheral Nervous System Made up of the nerves that travel through the body
Major organ of the nervous system axon & dendrite (nerve cell; brain:cerebrum (thinking), cerebellum (coordination), brainstem (functions that keep you alive), and spinal cord where nerves send signals to the body.
Stimulus Any internal or external change that causes an organism to respond
Homeostasis maintaining a balance
Function of the Endocrine System The endocrine system is a collection of glands that secrete hormones to maintain homeostasis.
Hormones Chemical messengers that regulate the activity of other cells in the body and they travel in the bloodstream
Function of the Reproductive System Facilitate fertilization (joining of egg & sperm cell).
Function of the Lymphatic System Collect and return fluids that have leaked from the blood usig lymph nodes. Tonsils, thymus and spleen are examples of lymphatic organs.
Created by: dsookdeo