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44 Cards in this Set

  • Front
  • Back

Right side of heart chambers

Receive blood from body

Pump blood to lungs left side of hearr

Left side of heart chambers

Receives oxygenated blood from lungs

Pumps into aorta to body

Growth of heart

Developed from single tube

Weight incr. 6x by 9

Left vent wall 2-3x thicker than right

Male heart size

15% larger than females

Respiratory growth

Lungs bud visible 6th week prenatal

Whole lung develop. 26 weeks


Birth 20 million

Age 8- 300 million

Static/elastic recoil force

Older adulthood decreased ability to exhale.

20% more work to exhale

Aerobic power

Vo2 max

Max amt of O2 person can use per unit of time (L/min)

90% related to heredity

Anaerobic power

Max rate metabolic processes occur w/o oxygen

Max effort/short duration (2 mins or less)

Resting HR

Decrease with age

Faster in females

Young child 30-40 bpm faster than adults

Max HR


Heart rate reserve

Determines intensity of ex.


Cardiac output

Rate of blood pumped per unit of time

Main factor in max Vo2

Stroke volume x HR

Decrease 30% older adulthood

Stroke volume

Qty of blood pumped per beat

Blood volume

Constant with growth

Red blood cells

Concave discs, 6-8 micrometers in diameter

120 days then die in spleen

Blood pressure

Product of CO x vascular resist

Systolic bp


The beat.

Strain in arterial walls during vent. Contract.

Diastolic bp

Bottom #

Strain on arterial walls during refilling of chambers

Basal metabolic rate

Min. Level of energy required to sustain body function

Decreases through lifespan

Organ size

Decrease through life

Decreased BMR

Muscular strength

Max force generated by muscle

Peaks 25-29

Lose 25-30% w age

60% total body strength in legs

Muscular endurance

Ability to perform repeated contractions

Strength key variable in endurance


Moving body parts through ROM w/o undue strain


Environ. Agent that can cause birth defects or kill fetus

Internal factors maternal age

35 years+ diff. Conceiving/delivering

Under 16- higher risk of birth defects premature birth and LBW

Down syndrome

Extra chromosome in 21st pair (47 v. 46)

1 in 400 at 35

1 in 100 at 40

Heart defects

Phenylketonuria PKU

Defect in liver enzyme

Can’t digest milk products

Detected at birth through blood test

Sickle cell anemia

RBC sickle shaped

10% AA carry gene

RBC join together when oxygen is low

Turners syndrome

Only female

1 X chromosome instead of XX

No sexual develop.


Only male

Extra X (XXY instead of XY)

Taller than normal


Attacks nervous system

Low birth weight

Infants born bw 38-42 weeks under 5.5 lbs

Deficits in growth and motor behavior

Pre term

Prior to 38 weeks

Combo of pre term and LBW

8% of babies

Poor fine motor and visual integration

Delayed walking

Sedentary lifestyle

Doubles risk of CHD

% obesity in children

Tripled in last 30 years

Type II diabetes in children

30% in 1990s

45% in 2000s



25-40% from heredity

Pituitary gland

Master gland- produces GH

Area not affected by GH

Central nervous system

Thyroid gland

Ranked 2nd after pituitary

Thyroxine- essential for CNS develop.

GH need thyroxine to be effective


Secretes insulin to metabolize blood sugar

Adrenal glands

Sit on top of kidneys

Release androgens

Reg. Fat and carb metabolism