Exsc 463 - Study guides, Class notes & Summaries

Which of the following receptors is found at skeletal muscle? - ANSWER nicotinic Which statement is true of preganglionic motor neurons? - ANSWER They always excite the postganglionic motor neurons. Which of the following statements is true about the activity of an organ of the autonomic nervous system that has dual innervation (such as the heart)? - ANSWER Its activity at rest or during exercise is related to the net stimulation, or sum of both sympathetic and parasympathetic nervous syst...

What releases ACh from its synapse? - ANSWER Preganglionic sympathetic and parasympathetic neurons, postganglionic parasympathetic motor neurons, postganglionic sympathetic neurons of SWEAT GLANDS, and Preganglionic sympathetic neurons at adrenal medulla to stimulate the release of NE/EPI What receptors are found on cells responding to somatic neurons? - ANSWER Nicotinic What receptors are found at preganglionic parasympathetic neurons? - ANSWER Nicotinic

Which type of muscle has neural innervation of every muscle cell or fiber? A. Cardiac muscle B. Smooth muscle C. Skeletal muscle - ANSWER C. Skeletal muscle

8 principles of exercise - ANSWER -personalization-warm-up/cool-down-specificity- overload-adaptation-progression-maintenance-reversal plateau Met conversions - ANSWER 1 met = 3.5 ml/kg/min = 1.05 kcal/kg/hr 1l/min=5kcal

How many total MET-Minutes of physical activity/exercise does Joe accumulate during the week? How many of these MET-minutes count towards meeting the physical activity guidelines? - ANSWER 1725 MET-Minutes

Why active cool down? - ANSWER -maintain blood flow -lactate removal -allow body to switch lactate production rates we should Weight train how often? - ANSWER at least twice a week what determines the net effect on the the effector organ? - ANSWER the sum of the two stimuli (Para/sympath)

hat was the peak plasma lactate value from the graph in the slides? - ANSWER 4 mmol/L What happens to glycolytic activity and lactate production when you increase activity? - ANSWER it increases What is lactate's response to sprint exercise? - ANSWER peaks around 15 minutes

How does training improve fat metabolism - ANSWER 1. Transport FFA into muslce 2. Transport from cytoplasm into the mitochondria 3. Mitochondrial oxidation of FFA Oxygen consumption from rest to steady state exercise - ANSWER - ATP provided anaerobically for first min - oxygen deficit created until steady state is reached. Thats why ATP-PC and glycolysis are used first (anaerobic) - During steady state, oxygen is consumed to meet needs and aerobic kicks in. There is overlap of metabolic ...