Survey
* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
Biology and consumer behaviour wikipedia , lookup
Holonomic brain theory wikipedia , lookup
Haemodynamic response wikipedia , lookup
Metastability in the brain wikipedia , lookup
History of neuroimaging wikipedia , lookup
Selfish brain theory wikipedia , lookup
Stimulus (physiology) wikipedia , lookup
Proprioception wikipedia , lookup
Neuropsychology wikipedia , lookup
Neuroanatomy wikipedia , lookup
Body Systems Study Guide Test on Tuesday, February 4th Skeletal System -There are 206 bones in the body. -The skeleton supports the body. -The skeleton is made up of bones held together by cartilage. -Bones contain calcium. -The smallest bones are in the ear; the strongest bone in the body is the femur (thigh bone) Muscular System -The muscles in our body help us do many important things like: breathe, blink, walk, and grab things. -There are 600 muscles in the body! -It takes 34 muscles to frown but only 13 muscles to smile! -The body is able to move because of muscles. -We have voluntary muscles, which we choose to move, and involuntary muscles, which move on their own. Circulatory System -The heart is a hollow muscle that has two pumps. -The valves closing make the beating sound, as the heart allows blood to pass in and out of the chambers. -Blood passes through the right side of the heart, to the lungs, to the left side of the heart, and out to the body. Respiratory System -Everyone has a set of lungs. They are like balloons. -When we breathe in, our lungs fill with air. -When we breathe out, we exhale carbon dioxide. -Our lungs work together with our heart to carry oxygen all over our body. -There are 4 organs, which work together in this system: the lungs, the nose, the trachea, and the bronchi. -The air first enters our body through the nose. -The trachea is a tube that allows the air to go to the lungs. -The bronchi are also tubes that branch out in the lungs. The Digestive System -Your teeth grind up food into small pieces to be digested by the stomach. -The tongue helps us swallow food, and then the food goes down the esophagus to the stomach. -The stomach is a muscle, which mixes up food. It is like a holding tank for food. -The stomach turns the particles of food into liquid. -In the intestines, some of the liquid is absorbed into the body to be used for fuel. -The rest continues through the intestines as waste. Nervous System -The human brain is a complex organ that allows us to think, move, feel, see, hear, taste, and smell. -It controls our body, receives information, analyzes information, and stores information (our memories). -The brain produces electrical signals to communicate to the body through nerves. -The adult human brain weighs 3 pounds. -The brain is connected to the spinal cord, which runs from the neck to the hip area. -The spinal cord carries nerve messages between the brain and the body. -The cranium (the top of the skull) surrounds and protects the brain. -The spinal cord is surrounded by vertebrae (hollow spinal bones).