BIOS 252 COMP EXAM QUESTIONS AND ANSWERS

BIOS 252 COMP EXAM QUESTIONS AND ANSWERS When compared to a classic lever system, the synovial joints of our Musculoskeletal system play the role of the _________? A. Weight B. Force C. Fulcrum D. Lever E. Resistance - Ans:-C. Fulcrum. Which of the following event will occur when depolarizing graded potential's reach the membrane of the axon Hillock, causing its membrane potential to reach threshold? A. Ligand-gated Ca++ channels close rapidly ©GRACEAMELIA 2024/2025 ACADEMIC YEAR. ALL RIGHTS RESERVED FIRST PUBLISH OCTOBER 2024 Page 2/26 B. Voltage-gated Ca++ channels open rapidly C. Ligand-gated Na+ channels close rapidly D. Voltage-gated Na+ channels open rapidly E. Ligand-gated Cl+ channels close rapidly - Ans:-D. Voltage-gated Na+ channels open rapidly. The attachment of the muscles tendon to the stationary bone is called the _________? ; The attachment of the muscles other tendon to the movable bone is called the__________? A. Origin ; action B. Insertion ; action C. Origin ; insertion D. Stabilizer ; mover E. Insertion ; origin - Ans:-C. Origin ; Insertion Which of the following fascicular arrangements would best be described as fascicles arranged on only one side of the tendon? ©GRACEAMELIA 2024/2025 ACADEMIC YEAR. ALL RIGHTS RESERVED FIRST PUBLISH OCTOBER 2024 Page 3/26 A. Unipennate B. Bipennate C. Fusiform D. Circular E. Multipennate - Ans:-A. Unipennate Which type of synapse involves the secretion of a neurotransmitter across the synapse to stimulate the post-synaptic cell? A. Mechanical B. Nominal C. Electrotonic D. Processing E. Chemical - Ans:-E. Chemical Your friend nods 'yes' to you, going through flexion, extension, and hyper extension in their enthusiastic response. This movement at the fulcrum represents a ©GRACEAMELIA 2024/2025 ACADEMIC YEAR. ALL RIGHTS RESERVED FIRST PUBLISH OCTOBER 2024 Page 4/26 A. First-class lever system B. Second-class lever system C. Third-class lever system D. Fourth-class lever system E. Does not represent a lever system - Ans:-A. First-class lever system The sarcoplasmic reticulum stores A. Oxygen B. Glycogen C. ATP D. Calcium ions E. Glucose - Ans:-D. Calcium ions Which of the following is NOT a function of smooth muscle tissue? ©GRACEAMELIA 2024/2025 ACADEMIC YEAR. ALL RIGHTS RESERVED FIRST PUBLISH OCTOBER 2024 Page 5/26 A. Altering the diameter of the respiratory passageways B. Elevating hairs on the arm C. Blinking the eyelid D. Moving food materials along the digestive tract E. Moving urine from the kidneys into the bladder - Ans:-C. Blinking the eyelid In an isometric contraction, the ,uncle develops tension but does not? A. Shorten B. Lengthen C. Expend energy D. Conduct electrical current E. Exhibit elasticity - Ans:-A. Shorte