Bio 169 exam - Study guides, Class notes & Summaries

what is required for the flow of air in and out of the lungs? - Answer a pressure difference between the air inside the body and outside of the body Diaphragm - Answer -dome shaped -contraction flattens scalenes - Answer -hold first pair of ribs stationary

Volume of air in one quiet breath - tidal volume warms, humidifies, cleanses air; detects odor, voice amplification - the nose little horn looking cartilage in the larynx - corniculate cartilage the sum of the anatomical and pathological dead space - physiological dead space ______ and _______ insures air contacts mucus membranes - narrowness and turbulance this rotates the corniculate and arytenoid cartilages, changes the pitch of sound - deep intrinsic muscles (infrahyoid group)...

Describe the roll of erythropoietin in erythrocyte production and hemostasis and where it is released from - Answer Erythropoietin is a hormone secreted from the kidneys & liver, and its purpose is to stimulate 'erythrocyte colony forming unit' to transform into a 'erythroblast'. Erythroblast multiply and synthesize hemoglobin. When this is done the nucleus shrivels and leaves the cell, turning it into a 'reticulocyte'. The reticuloctye leaves the bone marrow and after a day or two lo...

BIO 169 Exam 1; Questions & Answers 100% Correct What type of hormone can cross the plasma membrane to bind to a receptor in the cytosol or nucleus? Correct answer-Hydrophobic hormones ADH (antidiuretic hormone) is secreted in response to: Correct answer-Increased solute concentration of the body fluids Urine volume ____ when ADH (antidiuretic hormone) secretion decreases. Correct answer-Increases What is the function of thymosin? Correct answer-Development and maturation of the im...

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Bio 169 Exam 3 (Answered) 231 Questions and Correct Answers With Complete Verified Solution, 100% Correct, Latest 2024/2025. Main function of respiratory system Gas exchange Other functions of the respiratory system Mucous membrane, Speech, pH balance, smell Cardiovascular system with gases Carries O2 to tissues and return CO2 to lungs Two parts of respiratory tract Upper and lower What organs in upper respiratory tract Nose through larynx What organs in lower respiratory tract Tra...

BIO 169 Exam 2 (Answered) 72 Questions and Correct Answers With Complete Solution, 100% Correct. 2024/2025.