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A&P2 Test 2 Vocab
Mrs. Fletcher Test 2 Weatherford College
| Word | Definition |
|---|---|
| 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. |
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