Sarcolemma Study guides, Class notes & Summaries

1. To which of the following structures do the cross-bridges attach during muscle action? a. actin b. myosin c. M-bridge d. sarcolemma - correct answeractin 2. Which of the following substances regulates muscle actions? a. potassium b. calcium c. troponin d. tropomyosin - correct answercalcium 3. Which of the following substances acts at the neuromuscular junction to excite the muscle fibers of a motor unit? a. acetylcholine b. ATP c. creatine phosphate d. ser...

Which of the following is a recognized function of skeletal muscle? 1) A) guard body entrances and exits B) maintain posture C) maintain body temperature D) produce movement E) all of the above - Answer-E Nerves and blood vessels that service the muscle fibers are located in the connective tissues of the A) myofibrils. B) sarcolemma. C) endomysium. D) sarcomere. E) perimysium. - Answer-E Which of the following best describes the term sarcoplasmic reticulum? A) largely made of myosin...

What structure runs from Z line to Z line? - Answer-Sarcomere The movement of the troponin-tropomyosin complex requires _______ - Answer-Ca2+. The actin filament is a polymer formed from 300 to 400 globular subunits called ______ - Answer-Gactin. A myofilament is the _________. - Answer-Protein strand composed of actin or myosin T tubules ________. - Answer-Conduct action potentials deep into the muscle cell A drug that interferes with the active transport of calcium ions from the sarcoplas...

Bio 264 Exam 3 Questions and Answers Already Passed What structure runs from Z line to Z line? Sarcomere The movement of the troponin-tropomyosin complex requires _______ Ca2+. The actin filament is a polymer formed from 300 to 400 globular subunits called ______ G- actin. A myofilament is the _________. Protein strand composed of actin or myosin T tubules ________. Conduct action potentials deep into the muscle cell A drug that interferes with the active transport of calci...

1. To which of the following structures do the cross-bridges attach during muscle action? a. actin b. myosin c. M-bridge d. sarcolemma Answer actin 2. Which of the following substances regulates muscle actions? a. potassium b. calcium c. troponin d. tropomyosin Answer calcium 3. Which of the following substances acts at the neuromuscular junction to excite the muscle fibers of a motor unit? a. acetylcholine b. ATP c. creatine phosphate d. serotonin Answer acet...

1. To which of the following structures do the cross-bridges attach during muscle action? a. actin b. myosin c. M-bridge d. sarcolemma - Answer- actin 2. Which of the following substances regulates muscle actions? a. potassium b. calcium c. troponin d. tropomyosin - Answer- calcium 3. Which of the following substances acts at the neuromuscular junction to excite the muscle fibers of a motor unit? a. acetylcholine b. ATP c. creatine phosphate d. serotonin - Ans...

2024 VTNE Exam Prep Surgical Nursing Part 1 New Full Questions and Answers ( Included ) 100% Correct 1. A very young puppy presents with a history of milk coming from his noseand seems to cough and gurgle when he eats. What deformity commonly results in this presentation? Persistent right aortic arch Occluded sinus Esophageal stricture Cleft palate Stenotic nares Answer: A common presentation for cleft palate is milk coming from apuppy's (or kitten's) nose after or during eating....

3 Distinct Types of Muscle correct answers 1. Skeletal muscle ~ 40% BW, has striated, tubular multinucleated fibers, usually attached to skeleton, voluntary 2. Smooth muscle- narrow, atpered rod shaped cells, nonstriated, uninucleated fibers, occurs in the walls of internal organs and blood vessles, involuntary 3. Cardiac muscle (smooth + cardiac= 10% BW) - striated, tubular, branches, uninucleated fibers, occurs in the walls of the heart, involuntary Muscle is an excitable contractil...

CSCS Practice Exam Study Test Bank Questions with Complete Solutions 1. To which of the following structures do the cross-bridges attach during muscle action? a. actin b. myosin c. M-bridge d. sarcolemma - Correct Answer actin 2. Which of the following substances regulates muscle actions? a. potassium b. calcium c. troponin d. tropomyosin - Correct Answer calcium 3. Which of the following substances acts at the neuromuscular junction to excite the muscle fibers of a mo...

Final Exam: BIOS 252 / BIOS252 (2024/ 2025 Update) Anatomy and Physiology II Exam Review| Questions and Verified Answers| 100% Correct| Rated A -Chamberlain Q: Describe the sliding contraction theory Answer: Acetylcholine NT is released from synaptic end bulbs of neuron, crossing over synaptic cleft, binds to ligand gated receptor present on muscle tissue sarcolemma, generating a muscle end action potential traveling down the T-Tubule. This activates the sarcoplasmic reticulum t...