Circulatory System Cardiac Cycle DHO8 7.8, pg 192 HS1/2017-2018 Cardiac Cycle The R & L side of the heart work together. The heart is 2 pumps. Systole=period
of ventricular contraction Diastole=period of ventricular rest (when ventricles arent contracting) https://www.smm.org/heart/heart/top.html About your heart-Science Museum of Minnesota Cardiac Cycle
Blood Pressure=measurement of the force of blood pushing against the artery walls Top number is systolic Bottom number is diastolic If BP is too high, it puts strain on the arteries & heart https://www.youtube.com/watch?v=qWti317qb_w (Understanding BP) 2.49
Cardiac Cycle Normal BP 120/80 Hypertension (High BP) 140/90 https:// www.youtube.com/watch?v=S648xZDK7b0 (Instructional Video for BP) 4.30 Cardiac Cycle
Heart Rate: Number of times heart contracts in 1 min Normal 60-100 Sounds you hear (Lub-dub) are the valves closing. First (S1) the AV valves and second (S2) the semilunar. http://www.stethographics.com/main/physiology_hs_introduction.html Do You Know? The second heart sound (S2), described as dub, is actually the sound of the:
a) Atria contracting b) Ventricles contracting c) Semilunar valves closing d) AV valves closing And the answer isC
Class Trilobita- Trilobites. Successful for over 300 million years. Extinct. 540-200 MYA . One pair of antennae. appendages. Subphylum Chelicerata. Chelicerae( fangs) No antenna. No mandibles. 4 pair of walking legs. 1 pair of pedipalps. Class Merostomata. Limulus
Ch 4: Part 2 - Stress Feb 13th, 2007 Stress Stress - pattern of emotional states and physio reactions in response to stressors Strain - accumulated effects of stress (physical symptoms, perf effects) Key is cognitive appraisal of potential stressors...
ITCZ = Intertropical Convergence Zone = Intertropical Front, Monsoon trough, Doldrums, or Equatorial Convergence Zone = a belt of low pressure girdling Earth at the equator - is formed by the vertical ascent of warm, moist air from the latitudes...
by John Cavanagh, Arthur G., III Palmer, Wayne Fairbrother (Contributor), Nick Skelton (Contributor) (Great; theoretical and for serious student) 5) "Understanding NMR Spectroscopy, second . edition", James Keeler (highly recommended by some of my students and postdocs) 4) " NMR...