9.3 Flashcards
How much water does your body lose each day?
2.3L of water, even more when you exercise
What role does water play in your body?
Helps you absorb food, transfer nutrients, remove waste, and help protect tissue
How much percent of your body is made up of water?
66%
Circulatory system?
Transports blood around the body
Blood pressure?
Force of the blood on the walls of blood vessels
When is your blood pressure is too high or too low, how does your body bring it up or down?
Messages are sent to your brain by nerve cells to raise or lower blood pressure
What is a Normal heart rate for adults and children?
Adults..60-100per min
Kids…80-100per min
What is the typical blood pressure reading for a adolescent?
120/75 mm Hg
What does the first number mean in a blood pressure reading?
A measure of the pressure caused when blood is pushed outta the heart
What does the second number mean on a blood pressure reading?
A measure of the pressure that it occurs as the heart relaxes and filled with blood
Sphygmomanometer
Measures blood pressure by applying enough pressure to an artery in your arm to briefly stop the flow of blood
What can Hybla pressure due to your arteries?
Hardin them and even make them burst
What can smoking cause in your blood vessels?
Can cause blood vessels to contract
High blood pressure can do … To ur arteries
Too much force on the walls of the arteries can damage the arteries
Low blood pressure can.. To ur arteries
Not enough blood flow could be an indication of heart problems, or low water levels in the body
Respiratory system?
A set of organs and pathways that involves with breathing
What happens when you inhale?
Chest cavity expands , an area of low pressure is created. Higher pressure air from the atmosphere rushes into lungs
Exhale?
When the chest cavity contracts the air in the lungs is squeezed, so the pressure in the lungs increases. This makes air rush out of the lungs
What 2 muscles make the chest cavity bigger?
The muscles between the ribs , which move the rib cage up and down
The diaphragm
Diaphragm?
A sheet of muscle in the lower chest that moves downward as you inhale
Disorders of breathing?
Clogged or swollen pathways affect natural system as well as constructed systems
Bacteria, viruses, and other micro organisms can also cause infection
Breathing in smoke, polluted air, coal dust, or asbestos can be harmful to ur respiratory system
Asthma?
A disease of the respiratory system interfere with the normal flow of air into the lungs
What can asthma stacks be triggered by?
Cold air, dust, exercise and stress
What do asthma attaches cause?
Causing the pathway to the Lungs to narrow, making it difficult to breathe
What gives medication to your lungs when your having an asthma attack?
Inhaler
