ex sci 2

55%

• the sum of the vital
• capacity and the residual volume

the individual pressures from each gas in a mixture.

about 15 (14-18)

about 13.5 (12-16)

• all the mechanical and electrical events that occur during one heartbeat.
• Diastole is when chambers fill with blood.
• Systole is when the ventricles contract and
• expel blood into aorta and pulmonary arteries.

• the total volume of blood
• pumped by the ventricle per minute. Product of HR and SV.

diaphram intercoastal and abdominal acount for 11% of total oxygen consumed during exercise

15% cadiac output

2% resting respiratory

during systole most, but not all blood in the ventricles is ejected. Volume of blood pumped per beat.

• large muscular, elastic, conduit vessels for transporting blood away from the heart
• to the arterioles.

• the major artery transporting blood from the left ventricle to all regions of the body
• and it branches into smaller arteries that become smaller and turn into
• arterioles.

pumping pressure. Highest pressure in the artery that occurs during ventricular systole.

passive pressure: lower # represents the lowest pressure in the artery

60-80 beats/min

28-40 beats/min

• oxygen content drops:
• the difference in oxygen content btwn atrial and venus blood in tissue level.

Abnormally fast or deep respiration, which results in the loss of carbon dioxide from the blood, thereby causing a fall in blood

Difficulty in breathing, often associated with lung or heart disease and resulting in shortness of breath.

Toal volume of blood pumped by the ventricle per minute. Redistribution of blood to the working muscles with exercise.

What is the % of cardiac outputof the muscles? UP TO 85%

220-age (sedentary adult)

205-1/2age (active)

• Working above aerobic capacity. Cant get oxygen
• fast enough

42%

no oxygen

• PO2 standard: 159
• PO2 when inhale into alveoli 105
• enters pulmonary capillaries w po2 of 40
• oxygen across the respiratory membrance is typically 65
• deoxygenated blood enters 40
• po2 in vein is 100

• if transporting 1 1/3 ml oxygen how much oxygen
• is transported for a male and female….take value and mult. by 1 1/3. If hemoglobin
• is 15…oxygen transfer is 20

c02 controls acid base balance

• Calc vo2 given ve and true o2. Vo2 =ve * true
• 02. True 02=inspired 02 –expired 02. O2 inspired =21% (not 20.93)