The Human Body. workforce planning. Did you Know??!!. Your brain is 80% water A human has 60,000 miles of blood vessels in their body The lining of your digestive system is shed every 3 days More than half the bones in your body are found in your hands and feet
Functions of the Muscular System
Some involuntary functions of the muscular system are muscles to help you breathe, make your heart beat, and help move food through the digestive system.
Some voluntary functions of the muscular system are like playing piano, running, playing video games, and throwing a ball.
Smooth muscles- acts on the lining of passageways and internal organs.
Skeletal muscles- these are attached to the bone and cause body movements
Cardiac Muscles- is a type of striated muscle that forms the wall of the heart
Problems of the Muscle System
Bruise- is a area of discolored skin that appears after an injury.
Tendonitis- is a inflammation of the tendon, caused by injury or over use aging
Hernia- when a organ or tissue protrudes through an area of weak muscle.
Smiling is easier than frowning.
It takes 20 muscles to smile and over 40 to frown.
Study all the notes!! & diagrams
Functions of Skeleton System
Skeletal system provides a structure for the body. It includes a vertebrae of spine and supports upper body and head.
Types of Bones
Small bones-includes bones in legs
Short bones-bones in wrist and ankles
Flat bones-In skull and protect organs like the rib cage
Irregular bones-facial bones or vertebrae bones
Types of Joints
Hairline fractures- is were the fracture incomplete
Transverse fracture- a fracture that is completely across the bone
Dislocation- is when the ligaments attached to the bone are torn or out of place
Torn cartilage- is a sharp blow or twisting of the joint
Arthritis- inflammation of the joint and is a result of natural wear and tear
Care of the Skeletal System
Ways to care for the Skeletal system is to eat foods that contain calcium, vitamin D, and phosphorus, they can help prevent the development of certain skeletal disorders.
Problems of the Skeletal System
Problems of the skeletal system can be a result of poor nutrition, infections, sports, and recreational injuries and poor posture. Osteoporosis and dislocation of the joints are also other problems of the Skeletal System.
Who discovered the X-ray?
Nuclear Medicine, Ultrasound and MR1
Bio 30, Math 30/31, Physics 30 and Chemistry 20.
______________________________________________Red blood cells carry oxygen from the lungs to all the cells of the body while White blood cells are like soldiers protecting the body.______________________________________________
Within a tiny droplet of blood, there are some 5 million red blood cells, 300 000 platelets and 10 000 white cells.
*The branching out of the aleoli creates more surface area which in turn allows for more oxygen to be absorbed.
Functions of the Nervous System
The nervous system coordinates all of the activities in your body, from breathing to digesting food or sensing pain or feeling of fear.
Cerebrum- is the largest and most complex part of the brain, its covered with a thin layer of gray matter
Cerebellum- is the second largest part of the brain and coordinates movement
Brain Stem- is a three inch stalk of nerve cells and fibers that connects to spinal cord to the rest of the brain
Care of the Nervous System
Eating a well balanced diet, exercising regularly, and getting enough sleep affect the health of your nervous system.
Ways to Protect your Nervous System
Keep your nervous system healthy by protecting it from injury. To protect your head and spine wear a helmet and protective gear while riding a bike, motorcycle, skating, and any contact sport.
Parkinson's disease-results in destruction of the nerve cells in an area of the brain that helps coordinate skeletal muscle movement
Multiple Sclerosis- involves the destruction of the myelin sheath that surrounds the axons of the neurons in the CNS
Alzheimer's disease- results with neurons in the brain are destroyed If neurons become clogged with protein deposits, they are unable to transmit impulses result in loss of memory