Transcript Body_Systems

Body Systems
Nervous System
• Controls every part of the body
• Also known as the master system
• Consists of three parts
Nervous System
• The brain
Nervous System
• The Spine
Nervous System
• The peripherals
Nervous System
• Clinic Test
– The ruler drop
1. The physician (doctor) will drop a ruler, without
warning, between the patients fingers.
2. The patient will attempt to catch the ruler as fast as
possible.
3. Divide the number of cm the ruler dropped by 110.
This is the patient’s reaction time.
4. Repeat 2 more times and average the results.
*This experiment is often used by doctors to
see if a patient’s brain is communicating well
with other parts of the body
Circulatory System
• Is responsible for the transport of oxygen
and nutrients
• Also aids in the removal of waste from
muscles and organs
• Consists of three parts
Circulatory System
• The Heart
Circulatory System
• Arteries
– Brings oxygen and
other nutrients to the
cells
– Red because of
oxygen
• Veins
– Removes carbon
dioxide and waste
from the cells
– Blue because of lack
of oxygen
Circulatory System
• Heart Strength
– Resting and active heart rate testing
1. Have the patient sit still for 1 minute.
2. After the 1 minute, count how many times the patients heart
beats in 30 seconds. Multiply this number by 2 to get the
patient’s resting heart rate.
3. Have the patient jog in place for 1 minute.
4. After the 1 minute, count how many times the patients heart
beats in 30 seconds. Multiply this number by 2 to get the
patients active heart rate.
Circulatory System
• Artery and Vein Efficiency
– Blood pressure measurement (to be done under supervision)
1. Place the strap around the patients arm at heart level. Make sure
the hoses are coming out the bottom of the harness.
2. Tighten the strap and close the air release valve on the pump.
3. Squeeze the pump repeatedly until the pressure meter reads 150.
4. While listening to the stethoscope, slightly turn the air valve to
release pressure.
5. Record the pressures at which you first hear beating and when
the beating stops. Normal blood pressure is 120/80
*High blood pressure means the heart is having to work too
hard. This can lead to a heart attack or other heart problems.
Respiratory System
• Is responsible for the intake of oxygen and
the expulsion of carbon dioxide.
• Works very closely with the circulatory
system
• Is split into three stages
Respiratory System
• Breathing
– The expansion of the lungs pulls air into the body
– The deflation of the lungs pushes air back out
Respiratory System
• Exchange of gasses between the lungs
and blood cells
– Tiny capillaries (holes) in the lungs allow oxygen to pass into the
blood stream, and allows carbon dioxide to pass out of the blood
stream
Respiratory System
• Exchange of gasses between blood cells
and other cells
– Capillaries in other parts of the circulatory system allow oxygen
to be passed to various cells, and for carbon dioxide to be
passed to the blood cells
Respiratory System
•
Lung Capacity Test
1.
Have the patient stretch, then inflate a balloon slightly. Then
completely deflate the balloon.
Have the patient inhale as much as possible.
Hand the patient the balloon, and have the patient blow the
balloon up as much as possible using one breath.
Measure the diameter of the balloon.
For accuracy, repeat this procedure multiple times
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