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44 Cards in this Set
- Front
- Back
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Right side of heart chambers |
Receive blood from body Pump blood to lungs left side of hearr |
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Left side of heart chambers |
Receives oxygenated blood from lungs Pumps into aorta to body |
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Growth of heart |
Developed from single tube Weight incr. 6x by 9 Left vent wall 2-3x thicker than right |
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Male heart size |
15% larger than females |
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Respiratory growth |
Lungs bud visible 6th week prenatal Whole lung develop. 26 weeks |
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Alveoli |
Birth 20 million Age 8- 300 million |
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Static/elastic recoil force |
Older adulthood decreased ability to exhale. 20% more work to exhale |
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Aerobic power |
Vo2 max Max amt of O2 person can use per unit of time (L/min) 90% related to heredity |
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Anaerobic power |
Max rate metabolic processes occur w/o oxygen Max effort/short duration (2 mins or less) |
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Resting HR |
Decrease with age Faster in females Young child 30-40 bpm faster than adults |
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Max HR |
220-age |
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Heart rate reserve |
Determines intensity of ex. MHR-RHR |
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Cardiac output |
Rate of blood pumped per unit of time Main factor in max Vo2 Stroke volume x HR Decrease 30% older adulthood |
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Stroke volume |
Qty of blood pumped per beat |
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Blood volume |
Constant with growth |
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Red blood cells |
Concave discs, 6-8 micrometers in diameter 120 days then die in spleen |
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Blood pressure |
Product of CO x vascular resist |
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Systolic bp |
Top# The beat. Strain in arterial walls during vent. Contract. |
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Diastolic bp |
Bottom # Strain on arterial walls during refilling of chambers |
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Basal metabolic rate |
Min. Level of energy required to sustain body function Decreases through lifespan |
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Organ size |
Decrease through life Decreased BMR |
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Muscular strength |
Max force generated by muscle Peaks 25-29 Lose 25-30% w age 60% total body strength in legs |
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Muscular endurance |
Ability to perform repeated contractions Strength key variable in endurance |
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Flexibility |
Moving body parts through ROM w/o undue strain |
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Teratogens |
Environ. Agent that can cause birth defects or kill fetus |
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Internal factors maternal age |
35 years+ diff. Conceiving/delivering Under 16- higher risk of birth defects premature birth and LBW |
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Down syndrome |
Extra chromosome in 21st pair (47 v. 46) 1 in 400 at 35 1 in 100 at 40 Heart defects |
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Phenylketonuria PKU |
Defect in liver enzyme Can’t digest milk products Detected at birth through blood test |
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Sickle cell anemia |
RBC sickle shaped 10% AA carry gene RBC join together when oxygen is low |
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Turners syndrome |
Only female 1 X chromosome instead of XX No sexual develop. |
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Klinefelters |
Only male Extra X (XXY instead of XY) Taller than normal |
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Syphilis |
Attacks nervous system |
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Low birth weight |
Infants born bw 38-42 weeks under 5.5 lbs Deficits in growth and motor behavior |
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Pre term |
Prior to 38 weeks |
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Combo of pre term and LBW |
8% of babies Poor fine motor and visual integration Delayed walking |
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Sedentary lifestyle |
Doubles risk of CHD |
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% obesity in children |
Tripled in last 30 years |
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Type II diabetes in children |
30% in 1990s 45% in 2000s |
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Overnutrition |
Obesity/overweight 25-40% from heredity |
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Pituitary gland |
Master gland- produces GH
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Area not affected by GH |
Central nervous system |
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Thyroid gland |
Ranked 2nd after pituitary Thyroxine- essential for CNS develop. GH need thyroxine to be effective |
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Pancreas |
Secretes insulin to metabolize blood sugar |
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Adrenal glands |
Sit on top of kidneys Release androgens Reg. Fat and carb metabolism |
