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A&P2 Test 2 Vocab

Mrs. Fletcher Test 2 Weatherford College

WordDefinition
Stroke Volume Volume of blood released from the heart during a ventricular contraction; usually 70ml on average
Cardiac Output defined by ml/min (Stroke Volume (ml ) X Pulse(bpm) = COml/min)
Parietal Pericardium Lines the pericardial sac
Visceral Pericardium Lines the surface of the heart
Murmur irregular sound associated with the heart beat; Most common is hissing that occurs when valve doesn't get a tight seal, Sounds of left and right valves not operating at the same time. "lubb-lubb-dupp"
Arteriole Carry oxygentated blood within an organ
Venule Carry deoxygenated blood within an organ
Respiration The process od exchanging gases between the atmosphere and the body
Ventilation the movement of air in and out of the lungs
Nare Nose hole
Epiglottis Flap that prevents food from entering the airway during swallowing
Carina Structure that reinforces the split of the L and R bronchi
Alveolar Sacs The expanded portion of the alveolar duct
Alveoli 300,000.000 pockets or sacs that allow for gas exchange with the circulatory system
Retroperitoneal area outside the tissue that lines the abdominal wall and covers most of the organs in the abdomen
Nephron The functional unit of the kidney, each kidney contains about 1 million nephrons
Cortical Nephron Most if not all of renal tubule is within the cortex
Juxtamedullary Nephron part of the tubule dips deeply into the renal medullary; important in regulating water balance
Obligitory reabsorption Occurs in the loop of Henle and restores required minimum water to blood through osmosis.
Urea A non-protein nitrogenous substance produced as a result of protein metabolism
Uric acid Protein of nucleic acid metabolism in the body
Creatine A muscle biochemical that stores energy
Trigone triangular region at the base of the bladder, the urethra is located at the point; very sensitive to expansion and once streched to a certain degree, the urinary bladder signals the brain of its need to empty.
Muscular detrusor Muscular wall of the urinary bladder; consists of multiple layers: The inner and outer run longitudinally and the middle is circular at the urethra and forms the internal urethral sphincter. Contraction of sphincter prevents urine from leaving the bladder
Micurition Urination; voiding.
Tidal volume Volume moved in and out of the lungs during a respiratory cycle. (500ml)
Inspiration reserve volume Volume that can be inhaled forcibly (3000ml)
Expiratory reserve volume Volume that can be exhaled focibly (1100ml)
Residual Volume Volume that remains in the lungs at all times (1,200ml)
Vital Capacity Max volume of air that can be exhaled after taking the largest possible breath VC = TV+IRV+ERV
Total lung capacity Total volume of air that the lungs can hold. TLC = VC+RV
renal hilus indentation through which the renal blood vessels enter/exit as well as lymphatic tissue, nerves and the ureter.
renal sinus A hollow chamber created by the deep indentation of the hilus
renal pelvis Funnel shaped expansion of the ureter located wihin the renal sinus; major calyces
Internal Cortex contains all the renal corpuscles, outer layer, renal columns pass from this layer to the medulla
Medulla consists of 14 triangular renal pyramids; each pyramid projects into a minor calyx
Minor Calyx fuses to form major calyces
Glottis slit-like opening between the true vocal cords.
Created by: DevilDoc