Teeth in adults
A. are replaced by osteoblast activity if they are extracted.
B. are distributed so that there is one canine tooth in each half jaw.
C. are all of the same type - molars.
D. are composed of living cells called enamel cells.
E. do not play a role in speech.
B
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The wave of ventricular contraction starts at the apex of the heart and travels up toward the base.
Answer the following statement true (T) or false (F)
What is a weak, thin-walled bulging sac in an arterial wall called?
A. An atheroma B. An aneurysm C. A hematoma D. A varicose vein E. An embolism
Match each term with its definition.
1. the amount of blood pumped out of the heart during one contraction 2. the amount of blood in the ventricle available to be pumped out of the heart during one contraction 3. the volume of blood circulated by the heart in one minute 4. the amount of blood left in the ventricle after it contracts A. cardiac output (CO) B. heart rate (HR) C. end-diastolic volume (EDV) D. stroke volume (SV) E. end-systolic volume (ESV)
In phagocytosis
A. a particle enters a cell by moving down its concentration gradient. B. a carrier molecule moves a substance across a cell membrane using ATP. C. a cell membrane engulfs droplets. D. a cell membrane engulfs solid particles.