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Transcript of BRAIN
The function of the nervous system is to control the actions and reactions of the body in response to stimuli from the environment.
THE NERVOUS SYSTEM
Cerebrum, cerebellum, and brain stem
The cerebrum is the part of your brain that you use for thinking, problem solving, and its where your memories are stored. This part of your brain also controls your voluntary movements and allows you to sense touch, light, sound, odor, taste, pain, heat, and cold.
This part of your brain processes information from your body, thus allowing your brain to keep track of your body movements, positions, and it helps to coordinate your body movements.
This part of the brain connects your brain to your spinal cord.
Skeletal muscles, Cardiac muscles, and Smooth muscles.
The skeletal muscles are used to facilitate movement by applying force to bones and joints. This muscle normally contracts voluntarily but it can contract involuntarily.
The cardiac muscles are responsible for pumping blood throughout your whole body system.
The smooth muscles are just kinda there to help things pass through your body system like food and stuff like that.
HOW DOES THIS SYSTEM WORK WITH OTHER BODY SYSTEMS?
The way the nervous system works with your skeletal system is your skull and vertebrae protects your spinal cord and brain.
Your nerves use impulses to allow communication between your brain and the rest of your body, via the spinal cord.
Autonomic Nervous System (ANS)-
Regulates the functions of our internal organs such as the heart, stomach and intestines.
Ex. blood vessels change size or heart beats faster. However, some people can be trained to control these functions like heart rate or blood pressure.
Voluntary Nervous System (VNS)-
The voluntary nervous system is associated with the voluntary control of body movements.
Ex. Moving your arms and legs.
CENTRAL NERVOUS SYSTEM
PERIPHERAL NERVOUS SYSTEM
The brain monitors respiratory volume and blood gas levels and it regulates your breathing rate.
Your heart function and blood circulation is triggered by the nervous system.
The brain controls the way you eat and drink and muscles you use to do so. Also the digestive system sends sensory info to the brain.
Hormones provide feedback to the brain which affects neural processing and reproductive hormones affect the making of the nervous system.
The excretory system gets rid of waste when the nervous system sends signals.
Receptors in your skin send sensory info to the brain, the autonomic nervous system regulates blood flow and sweat glands, and your nerves control muscles connected to hair follicles.
Your reproductive hormones affect brain development and sexual behavior and the brain controls your mating behavior.
Receptors in your muscles give your brain info on body position and movement.
An injury you can get in your head that is usually caused by hitting your head on something/someone. This injury is typically not life threatening but it can put you into a coma.
Ex. Sally got hit in the head and found out she had a concussion, later on she fell asleep. she is now in a coma.
Side effects include a short period of unconsciousness, confusion, dizziness, amnesia, low-grade headaches, a period of amnesia, or not recalling what has happened.
Brain tumors can be found in all ages of adults. There are almost 1,400 new cases of malignant brain tumors in Australia and even more benign brain tumors that can be equally deadly if the tumor is in a vital area of the brain. More than 1,200 people die annually from malignant and benign brain tumors.
Ex. Sally got a benign brain tumor in a vial section of her brain and she died.
Side effects include death.
Spinal cord diseases/injuries!
It really depends on where you get injured on the spinal cord how severe the injury is. You will most likely get paralyzed somewhere on the body, have trouble doing simple tasks, and might have trouble breathing and/or talking.