Bio 669 stuvia 2024 - Study guides, Class notes & Summaries

Bio 669 - Exam 3 Pulmonary & Renal Practice Questions and Answers The main neural control central coordinating ventilation during quiet breathing is the - ANSWER- Dorsal Respiratory Group What helps to keep the expansion forces of the chest wall and the contracting forces of the alveoli/lungs linked so that the lung does not collapse and the chest does not expand further: - ANSWER-The negative pressure of the pleural cavity In response to low alveolar PO2 - ANSWER-Vascular smooth muscle c...

BIO 669 Quiz6 with Correct Answers The renal blood flow and this GFR are kept relatively consistent by: - ANSWER-Myogenic (intrinsic) autoregulation Which of the following is NOT a consistent finding in nephrotic syndrome? - ANSWER-Hypertension and vasoconstriction Which of the following does not stimulate aldosterone release? - ANSWER-Arterial natriuretic peptide Assume that fluid enters the distal tubule with an osmolarity of 100 mOsm, and that the maximum osmolarity of medullary inter...

Bio 669 Quiz 2 well Answered Neuron is composed of - ANSWER-cell body, dendrites, axon densely packed cell bodies in the CNS are called _____ - ANSWER-nuclei densely packed cell bodies in the PNS are called _____ - ANSWER-Ganglia What are dendrites? - ANSWER-Receptive portions of the neuron; receives information What do axons do? - ANSWER-Carry impulses away from the cell body is membrane potential about the inside of the cell or the outside? - ANSWER-inside of the cell what is an electro...

A hormone not involved in sugar metabolism is: - ANSWERAldosterone A possible symptom of an expanding pituitary tumor not related to hormones include: - ANSWERVisual disturbances The regulation shown by a hormone feeding back on the organ that released it, in addition to the physiologic effect feeding back on that same producing/secreting organ that released the hormone is termed: - ANSWERUltra short feedback loop Which of the following characteristics is typical of rapid and long lasti...

The renal blood flow and this GFR are kept relatively consistent by: - ANSWERMyogenic (intrinsic) autoregulation Which of the following is NOT a consistent finding in nephrotic syndrome? - ANSWERHypertension and vasoconstriction Which of the following does not stimulate aldosterone release? - ANSWERArterial natriuretic peptide Assume that fluid enters the distal tubule with an osmolarity of 100 mOsm, and that the maximum osmolarity of medullary interstitial fluid is 1100 mOsm. As plasma...

The ventilation-perfusion ratio is the same in the lung apex and the lung base in a standing normal person. True or False - ANSWERFalse. In a standing normal person, the ventilation-perfusion ratio is higher in the lung base compared to the lung apex. This is due to the effects of gravity, which leads to better ventilation at the base of the lungs where perfusion is also relatively higher. Vital Capacity is comprised of all of the following volumes EXCEPT: Residual Volume Tidal Volume Ins...

When both Na+ and K+ are permeable at the same time, what will happen to the membrane potential? - ANSWERThe cell membrane depolarized Graded potentials are all of the following except: - ANSWERImpulses which travel without diminishing over distance Movement of K+ down its electrochemical gradient will result in what effect on membrane potential? - ANSWERHyperpoloarization

Na+ - ANSWERwhat ion is the best represented by the following concentrations, 150 mM extracellular and 15mM intracellular is? Increased Na+ and water retention - ANSWERADH is released in response to increased Na+ and results in? Retention of Na+ and water and loss of K+ - ANSWERThe renin-angiotensin-aldosterone system when activated will ultimately result in the _________ through the kidneys?

Which of the following conditions is the most immediately at risk for serious complications? - ANSWERSTEMI Thromboangitis Obliterans (Buerger's disease) is an autoimmune condition that is: - ANSWERStrongly associated with smoking Which of the following statements is incorrect? - ANSWERProstacyclins, which are diminished by NSAIDs, are vasoconstrictors