Depolarization Study guides, Class notes & Summaries

Portage Learning A&P II: Final Exam Question with complete solution 2023This is a collection of cell bodies found in the peripheral nervous system. Ganglia This part of the autonomic system increases digestion. Parasympathetic The ventral root of a nerve contains what type of neurons? Motor (Efferent) This part of a neuron conducts nerve impulses away from the cell body. Axon An interneuron inside the spinal cord is part of the: Central nervous system De...

ventricular filling QRS Complex Normal is <0.12 seconds usually between 0.06 to 0.10 seconds Ventricular depolarization QT Interval Normal 0.36-0.46 6 Steps for Rhythm Interpretation Determine Regularity Calculate the Rate Evaluate the P wave Measure the PRI Evaluate the QRS Width Evaluate the T wave and Calculate the QTI Normal Sinus Rhythm Regularity: atrial and ventricular rate are regular Rate: 60 to 100 beats per minute P wave: upright, smooth, round and uniform shape, on...

allows blood to flow directly from the right atrium into the left atrium to bypass pulmonary circulation - foramen ovale carries blood from the umbilical vein to inferior vena cava; allows some blood to bypass the liver - ductus venosus atrial contraction; systole; p wave - atrial depolarization max volume of air that can be exhaled following maximal inhalation - vital capacity allows blood in pulmonary artery to flow directly into the descending aorta to bypass the pulmonary circula...

Why is myelin important in the nervous system? A. It allows signals to travel faster along axons because depolarization occurs only at myelinated locations. B. It allows signals to travel faster along axons because depolarization occurs only at nonmyelinated locations. C. It bundles the dendrites of adjacent neurons together. D. It increases capacitance across the cell membrane, which helps electrical signals to leave the axons. E. It traps neurotransmitters, increasing their concentratio...

NHA CCMA Test | 2023/ 2024| Questions and 100% Verified Answers| LATEST!! 1. What is the epicardium? Answer: The outer most layer of the heart. 2. The sudden rush of blood pushed into the ventricles as a result of atrial contraction is known as Answer: Atrial kick 3. The U wave represents Answer: repolarization 4. What is not necessary in administering an ECG? Answer: Sterilizing the leads 5. Which type of lead is lead III? ...

Which of the following BEST describes universal and standard precautions? - correct answer Standard precaution conbine universal and body substance isolation When might you be required to perform a 'stat' ECG? - correct answer When a patient has chest pains or changes in his or her cardiac rhythm Telemedicine monitoring is generally used to evaluate which of the following? - correct answer Artificial pacemaker functioning Which of the following is NOT a reason for performing an ...

Excitability - Answer- the ability of non-pacemaker heart cells to respond to an electrical impulse that begins in pacemaker cells. Depolarization - Answer- occurs when the normally negatively charged cells within the heart muscle develop a positive charge. Conductivity - Answer- the ability to send an electrical stimulus from cell membrane to cell membrane. As a result, excitable cells depolarize in rapid succession from cell to cell until all cells have depolarized. Ex: the wave of depolarizat...

Resting membrane potential is created by differences between the inside and outside of the cell in ion concentrations of 1. K+ 2. K+ and Ca++ 3. K+, Na+ and Cl- 4. Na+, Ca++ and Cl- - Answer- K+, Na+, and Cl- Excitation of the postsynaptic neuron is caused by the neurotransmitter 1. gamma amino butyric acid 2. glycine 3. para amino butyric acid 4. glutamate - Answer- Glutamate Wave III of the BAER is generated by the 1. superior olivary complex 2. inferior colliculus 3. la...

What lab level should be checked for a possible MI? correct answer: Troponin What indicates metabolic acidosis? correct answer: Low bicarb and low pH What signs would be expected for sustained blood loss? correct answer: Hypotension and a weak, thready pulse What does the P wave indicate on a rhythm strip? correct answer: Atrial depolarization before the QRS What is a possible reason for lower extremity edema and what lab is used to diagnose? correct answer: R sided heart failur...

A & P 2 Straighterline Final Exam Questions and Answers / Straighterline Anatomy and Physiology When erythrocytes are destroyed, which of the following events occurs? -ANS>> The globin portion of the molecule is broken down into amino acids. Type AB blood -ANS>> has both A and B antigens on the red cells In the platelet release reaction, -ANS>> ADP and thromboxanes stimulate other platelets to become activated. The hematocrit is -ANS>> d. the percentage of RBC...

ATI CARDIAC 2023/ 2024 Updated Questions and Verified Answers| 100% Correct| Grade A Q: You are providing teaching to a group of PTs which of the Pts is at risk for developing PAD? 1. PT with hypothroidism 2. PT with Diabetes Mellitus 3. PT whose daily diet consists of 25% fat 4. Pt who consumes 2 bottles of beer a day Answer: 2. PT with Diabetes Mellitus-at risk for microvascular and progressive peripheral arterial disease Q: You are planning a presentation about HTN which...