Pnb 2264 final - Study guides, Class notes & Summaries

PNB 2264 Final Cumulative Exam Questions and Answers 100% Solved During contraction of the sarcomere: A. The size of the I band decreases B. The size of the A band decreases C. The size of the H zone increases D. Both A & B are correct - A. The size of the I band decreases The concentration of sodium ions inside the cell is 10mM, and the extracellular concentration is 100mM. The equilibrium potential for sodium under these conditions is +58mV. If the extracellular concentration of sodi...

PNB 2264 Final Cumulative Exam Questions and Answers 100% Pass Choose the answer that best illustrates hierarchy of organization. A. Blood levels of glucose are maintained within narrow limits B. Organs are made up of molecules and tissues are made up of organ systems C. Diffusion occurs down a concentration gradient D. Tissues are made up of cells and organs are made up of tissues E. All of the above - D. Tissues are made up of cells and organs are made up of tissues The purpose of po...

PNB 2264 Final Exam with 100% Correct Answers 2024/2025 Compared to the hip joint, the shoulder joint has ______ range of motion and _________ degrees of freedom - answerMore, the same The rectus femoris acts to - answerFlex the hip and extend the knee Nutrients reach osteocytes in osteons (Haversian systems) via _______ located in _______ - answerBlood vessels; central (Haversian) canals Joints connecting ribs to vertebral columns allow slight movement - answertrue Choose the correct se...

PNB 2264 Final Cumulative Exam Updated 2024/2025 Actual Questions and Answers Verified by Experts(wiseman)

PNB 2264 Final Exam With 100% Correct Answers 2024/2025 Which of the following are responsible for the relaxation phase of muscle twitch? -the ryanodine receptor (RyR) -SERCA -DHP - answerSERCA Increasing intensity of a pressure stimulus (applied to the same spot on your finger) is coded by ____ (assume threshold is met) -increasing amplitude of receptor potential -increasing frequency of afferent action potentials at first node of ranvier -increasing frequency of afferent action poten...

PNB 2264 Final Cumulative Exam Updated 2024/2025 Actual Questions and Answers Verified __________________ is a filamentous muscle protein made up of polymerized globular proteins that contain binding sites for ________________ a. Actin; Tropomyosin b. Myosin; Calcium c. Tropomyosin; Troponin d. Myosin; Tropomyosin - a. Actin; Tropomyosin __________________ is muscle protein made up of monomers (globular) proteins that polymerize to form chains (filaments) when ___________________ is pre...

PNB 2264 Final Exam with 100% Correct Answers 2024/2025 Compared to the hip joint, the shoulder joint has ______ range of motion and _________ degrees of freedom - answerMore, the same The rectus femoris acts to - answerFlex the hip and extend the knee Nutrients reach osteocytes in osteons (Haversian systems) via _______ located in _______ - answerBlood vessels; central (Haversian) canals Joints connecting ribs to vertebral columns allow slight movement - answertrue Choose the correct se...

1. Choose the answer that best illustrates hierarchy of organization. A. Blood levels of glucose are maintained within narrow limits B. Organs are made up of molecules and tissues are made up of organ systems C. Diffusion occurs down a concentration gradient D. Tissues are made up of cells and organs are made up of tissues E. All of the above: D. Tissues are made up of cells and organs are made up of tissues 2. The purpose of positive feedback mechanisms is to __________ . A. Cause a ra...

7. Phospholipids, a major component of the lipid bilayer, are classified as amphipathic molecules because: A. They contain hydrophilic fatty acid residues and hydrophobic phosphates B. They contain polar heads and non-polar tails C. They are able to interact with water D. All of the above: B. They contain polar heads and non-polar tails 8. Which of the following is NOT an example of passive transport? A. Transport of oxygen across the respiratory membrane B. The antiport of sodium and pot...