Sarcolemma Study guides, Class notes & Summaries

Which of the following is the largest? a. myofilament b. myofibril c. muscle cell d. fasicle correct answer: muscle cell muscle cells correct answer: Shorten to cause movement of the body. They move the skeleton, heart, and internal organs Sacrolemma correct answer: muscle cell membrane scaroplasm correct answer: cytoplasm of a muscle cell sarcoplasmic reticulum (SR) correct answer: specialized smooth endoplasmic reticulum, which stores, releases, and retrieves Ca++ wha...

What is the function of the tricuspid valve? A. It acts as a pacemaker. B. To pump blood through the heart. C. Prevents backflow of blood to the left atrium. D. Prevents backflow of blood to the right atrium. - correct answer Answer: D What is the fundamental unit of muscle contraction? A. Myofibril B. Sarcomere C. Myosin D. Sarcolemma - correct answer Answer: B Which chamber of the heart is responsible for pumping oxygenated blood to the body? A. Right ventricle B. Left ventri...

NSCA CSCS Vocabularies Review (Latest 2023/ 2024 Update) Questions and Verified Answers | 100% Correct| Grade A Q: perimysium Answer: covers bundles of muscle fibers (fascicli) Q: endomysium Answer: surrounds each individual muscle fiber Q: sarcolemma Answer: continuous with the muscle fibers membrane and endomysium Q: motor neuron Answer: nerve cell Q: neuromuscular junction Answer: where a nerve cell innervates muscle fibers, ...

2024 NSCA-CSCS EXAM - TOP 100 PREP QUESTION WITH CORRECT DETAILED AND ANSWERS/100% VERIFIED patella. - ANSWER: superior Which of the following is the smallest contractile unit of skeletal muscle? myosin epimysium sarcolemma sarcomere - ANSWER: sarcomere

Kin 1A03 McMaster Final Exam Review (2023/2024) 100% Pass excitation-contraction coupling AP from NS turns into muscle contraction -MAP propagated along sarcolemma into t-tubules -Ca+ channels in SR open and release into sarcoplasm -Ca+ binds to troponin and tropomyosin detaches -X bridge forms myofibril entire muscles length - series of sarcomeres state of each of the bands when muscle is relaxed vs contracted A band (all of myosin) H zone - only myosin I band - only actin A band doesn't ch...

what does the SR store - proteins and calcium what is the role of the transverse tubules in the muscle fiber - allow inside of muscle to communicate with the outside of the muscle how is a sarcomere measured - from z-disc to z-disc what is contained in the I band of the sarcomere & what color is the band - thin filaments titin z-disc light (isotropic) what is contained in the A band of the sarcomere & what color is the band - thick filaments thin filaments dark (scatters lig...

BIO 264 FINAL EXAM 2024 WITH 100% CORRECT ANSWERS Once excitation-contraction coupling has occurred, calcium ion concentration increases dramatically in the: a. sarcoplasmic reticulum b. cytosol of the muscle fiber c. sarcolemma d. terminal cisterna e. there is no change in calcium concentration - correct answer b. cytosol of the muscle fiber As Lisa drove home, she was suddenly alerted to the sound of a blaring horn and realized she had drifted off to sleep. Which nervous system ...

What is a sarcolemma? A calcium storage unit in the muscle A contractile cell in the muscle Connective tissue putting muscle fibers into groups The cell membrane which encloses a muscle fiber - correct answer The cell membrane which encloses a muscle fiber ` You make a 1:5 dilution of a serum sample and measure the urea nitrogen. The analyzer reads that the concentration of urea nitrogen is 30 mg/dl. What is the urea nitrogen level of the patient's serum? 35 mg/dl 120...

ISSA STRENGTH AND CONDITIONING STUDY GUIDE QUESTIONS AND ANSWERS stretch-shortening cycle - ANS eccentric contraction followed immediately by concentric contraction intradiscal pressure - ANS Pressure present between vertebral discs. insulin - ANS A hormone produced by the pancreas or taken as a medication by many diabetics sinoatrial node - ANS a mass of cardiac muscle cells that lies at the junction of the superior vena cava with the right atrium and that initiates and r...

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...