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Phys of Exercise final
Final Exam info
60
Physiology
Undergraduate 4
12/09/2011

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Term
Volumes
Definition
There are 4 primary volumes that do not overlap
Term
Tidal Volume
Definition
the depth of breathing, is the volume of gas inspired or expired during each respiratiory cycle
Term
Inspiratory Reserve Volume
Definition
the maximal amount of gas that can be inspired from the end inspiratory position 
Term
Epiratory Reserve Volume
Definition
the maximal volume of gas that can be expired from teh end of expiratory level
Term
Residual Volume
Definition
Volume of gas remaining in the lumgs at eh end of a maximal expiration 
Term
Capacities
Definition
There are 4 capacities, each of which include 2 or more of the primary volumes
Term
Total Lung Capacity
Definition
The amount of gas contained in the lung at the end of a maimal inspiration
Term
Vital Capacity
Definition
Maximal volume of gas taht can be expelled from th lungs by forceful effort following a maximal inspiration
Term
Inspiratory Capacity
Definition
The maximal volume of gas that can be inspired from the resting expiratory level
Term
Functional Residual Capacity
Definition
Volume of gas remain ing in the lungs at the resting expiratory level. Th resting end expiratory position is used here as a baseline because it varies less than the end oinspiratory position.
Term
2 Essential types of respiratoin regarding the human body:
Definition

-Internal

-External

Term
External is getting oxygen where?
Definition
Into the body
Term
Respiration has _____ processes
Definition
4
Term
4 Proceses of respiration:
Definition

Plumonary ventilation

Exchange of O2 and CO2 inthe:

Lungs 

Blood

Tissues

Term
Pulmonary Ventilation
Definition
Breathing, getting O2 into and CO2 out of the lungs
Term
INspiration
Definition
Rib cage is elevated and expands both front to back and side-to-side, diaphragm contaracts and is lowered, thus increasing the volume of the lungs. This causes the pressure to be lowered. Thus the hugher outside atmospheric pressure forces the air to rush into the lungs.
Term
Expiration
Definition
Diaphragm relaxes and rises, rib cage decreases in sze, due to gravity, natureal elasticity of the muscles, and due to muscle concentration causes volume to decrease
Term
Inspiration is ALWAYS_____
Definition
Active
Term
Expiration is ___ during rest and ____ during exercise
Definition

-Passive

-Active

Term
Factors of Respiratory Control
Definition

-CO2

-O2

-Prospective reflexes froom muscles

-Temperature

-Cerebral factors

-Hering Breure reflexes

Term
An increase in __ causes you to want to breathe. A decrease dulls the breathing reflex. This is why hyperventilation is dangerous.
Definition
CO2
Term
 A lower arterial level of ___ stimulates breathing
Definition
Oxygen 
Term
Physical movement bring on an increase in ventilation is called?
Definition
Prospective reflexes from joints and muscles
Term
As the body __ goes up, the ventilation reate goes up. cold causes ventilation to drop. They reduce ___ in some operationssince the body will use less oxygen when cold.
Definition

-Temperature

-Temperature

Term
Thinking leads to anticipatory increases are know as ____.
Definition
Cerebral Factors 
Term

Inhibito-inspiratory or inflatoin reflex

Excito-inspiratiory or eflation reflex

are known as? 

Definition
Hering Breuer Reflexes
Term
Labored breathing
Definition
Dyspnea
Term
Normal breathing
Definition
Eupnea
Term
____ is a local defieciency of blood, usually due to some type of obstruction or blockage. This redues the O2 available to the tissues involved. 
Definition
Ischemia
Term
___  is the absense of O2-may result in permanent damage, depending where it is 
Definition
Anoxia
Term
Low levels of O2 is called?
Definition
Hypoxia
Term
The pain or "___" in the side that you sometimes feel may be spasms in the intercostal muscles of the rib cage. It ma be ischemia of the diaphragm or the intercostal muschles.
Definition
Stitch
Term
The sum total of adjustments made by the body to allow for exercise. THis is dueto adjustments coming in bunches sometimes, and perhaps one at a time sometime else.
Definition
2nd wind
Term
Excessive blowing off of CO2. Dulls the breathing reflex. Build up of CO2 in the blood causes you to to want to breathe. 
Definition
Hyperventilation
Term
___ tends to bring on hyperventilation
Definition
Vibration
Term
Gas exchange in the lungs takes place in the _____
Definition
Aveoli
Term

Aveoli constitutes about ___% of the lung volume 

Definition
95
Term
Average composition of alveoli air is ___% oxygen
Definition
14.5
Term
How easily a gas will diffuse across a membrane is alled?
Definition
Diffusion gradient 
Term
CO2 disolves ____ times more easily than O2
Definition
20
Term
The ability of O2 to go from alveoli to blood. Blood flow increases during exercise
Definition
Lung Disfusion 
Term
How lung diffusion increases during exercise:
Definition

-Blood vessels dilate 

-more blood volume in lungs

-Alveoli are better ventilated 

 

Term
02 during exercise=__
Definition
maybe a slight benefit but it also requires on to carry tanks of O2
Term
Breathing pure oxygen can give you?
Definition
Oxygen poisoning
Term
How much O2 and CO2 is in blood entering lungs?
Definition

O2                 CO2

40mm            45mm

 

 

 

 

Term
How much O2 and CO2 is in Alveoli air?
Definition

O2                   CO2

100mm            40mm

Term
How much O2 and CO2 is in the blood leaving lungs?
Definition

O2                   CO2

100mm           40mm

Term
At __, blood leaves the lungs with an oxygen testion of 100mm and a saturation of 95-98%
Definition
Rest
Term
During __, it stilllwaves the lungs with an oxygen tension of 100mm and a saturation of 95-98%
Definition
Exercise
Term
02 before exerxise=___
Definition
no phsyiological benefit
Term
the blood leaves the heart through the arteries- as the arteries get longer and smaller the blood flow slows down
Definition
Velocity of blood flow 
Term
Factors of increasing the resistance of bolood flow:
Definition

Distane it travels increased

diameter of the tubing is decreased

Viscosity is increased 

Term
Blood slows down when the ___ are involved
Definition
Capillaries
Term
When you hold lyour breath ___ and ___ build up
Definition

-CO2 

-Acid

Term
The body adjusts to holding your breath by increasing the ___ and ____ of ventilation 
Definition

-rate

-depth

Term
When your ____ goes up so does the ventilization
Definition
Temperature
Term
___ most over perfused organ in the body-gets more blood than anywhere else. It filters the impurities 
Definition
Kidneys
Term
__ is the proportion of oxygen in the blood that is given off to the tissues
Definition
Coefficient of Oxygen Utilization
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