BIO 203 Study guides, Class notes & Summaries

emmetropia - ANSWER normal refraction presbyopia - ANSWER natural elasticity of the lens is lost w/ age. Lens is unable to assume more spherical shape for viewing near objects. requires a convex lens hyperopia - ANSWER farsightedness, eyeball is too short, light rays converge toward a point behind the retina. requires a convex lens myopia - ANSWER nearsightedness, eyeball is too long, light rays hit in the front of the retina. requires a concave lens. astigmatism - ANSWER irregular c...

autonomic (visceral) reflex - ANSWER 1 receptor 2 sensory afferent neuron 3 one or more interneurons 4 preganglionic motor neuron 5 postganglionic motor neuron 6 effector 2 systems that determine blood pressure - ANSWER sympathetic nervous system RAA system 4 causes of edema - ANSWER 1. low plasma protein osmotic pressure (liver disease, protein malnutrition) 2. high venous pressure (gen or pulmonary edema standing motionless, failing heart) 3. elevated protein osmotic pressure (le...

The primary action of a drug that dilates the veins and venules would be able to - ANSWER reduce preload According to Starling's Law of the Heart, the force of contraction of the myocardium increases with increased - ANSWER preload A coronary artery embolism is often cleared by injecting - ANSWER plasminogen activator Calcium channel blockers, beta-blockers, angiotensin-converting enzyme inhibitors and angiotensin receptor blockers are all used to treat - ANSWER hypertension One of ...

What is the reason that closely linked genes are typically inherited together? - ANSWER the likelihood of a crossover event between these two genes is low All female mammals have one active X chromosome per cell instead of two. What causes this? - ANSWER activation of the XIST gene on the X chromosome that will become the Barr body In his transformation experiments, what did Griffith observe? - ANSWER Mixing a heat-killed pathogenic strain of bacteria with a living nonpathogenic strain can...

What is the reason that closely linked genes are typically inherited together? - the likelihood of a crossover event between these two genes is low All female mammals have one active X chromosome per cell instead of two. What causes this? - activation of the XIST gene on the X chromosome that will become the Barr body In his transformation experiments, what did Griffith observe? - Mixing a heat-killed pathogenic strain of bacteria with a living nonpathogenic strain can convert some of the ...

2025 Nerves are __________ of the nervous system. A. organs B. tissues C. organ systems D. organelles E. cells - a. organs The term "nerve fiber" refers to a(n) __________. A. nerve cell B. organelle in nerve cells C. organ D. axon E. bundle of macromolecules in nerve cells - d. axon What is the primary site on a neuron for receiving signals from other neurons? a. the axon terminals b. the axons c. the axon collaterals d. the neurosomas e. the dendrites ...

BIO 203 FINAL EXAM LECTURE REVIEW QUESTIONS 29-34 VERIFIED!! List 3 important pressures necessary for respiration to take place. - ANSWER alveolar intra-alveolar intrapleural List the 6 respiratory muscles and what type of breathing are they important for. - ANSWER Diaphragm- normal quiet breathing for respiration External intercostals- normal quiet breathing for inspiration Abdominal muscles- used for force expiration Internal intercostals- used for forced expiration Scalenes- use...

Bio 203 Final Exam Review| 115 Questions| AccuNerves are __________ of the nervous system. A. organs B. tissues C. organ systems D. organelles E. cells - ANSWER a. organs The term "nerve fiber" refers to a(n) __________. A. nerve cell B. organelle in nerve cells C. organ D. axon E. bundle of macromolecules in nerve cells - ANSWER d. axon What is the primary site on a neuron for receiving signals from other neurons? a. the axon terminals b. the axons c. the ax...

Bio 203 Exam 4 practice test questions & answWhat is the reason that closely linked genes are typically inherited together? - ANSWER The likelihood of a crossover event between these two genes is low All female mammals have one active X chromosome per cell instead of two. What causes this? - ANSWER Activation of the XIST gene on the X chromosome that will become the Barr body In his transformation experiments, what did Griffith observe? - ANSWER Mixing a heat-killing pathogenic strain of b...

BIO 203 FINAL EXAM LECTURES 20-28 Verified!! ZSASZA ____ is contraction and emptying of the chamber of the heart. ______ is the relaxation and filling of the chamber of the heart. - ANSWER systole diastole Where does INITIAL amount of Ca++ used in the contractile cell originate from? Where does the MAJORITY of the Ca++ used in the contractile cell originate from? - ANSWER ECF SR Which ions are necessary for the AUTORHYTHMIC cell action potential? Which ions are necessary for the CON...