Myofibril Study guides, Class notes & Summaries

1. Which of the following tissues is always avascular? A) connective tissue D) epithelial tissue B) muscle tissue E) nervous tissue C) skeletal tissue Ans:  D Difficulty:  Medium 2. A scientist who examines tissue changes that might indicate disease is called a A) histologist. D) epidemologist B) radiologist. E) endocrinologist. C) pathologist. Ans:  C Difficulty:  Easy 3. The tissue lining body cavities is A) epithelial tissue. D) m...

ACSM CPT Exam Review Questions 2023 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. What is the fundamental unit of muscle contraction? A. Myofibril B. Sarcomere C. Myosin D. Sarcolemma Which chamber of the heart is responsible for pumping oxygenated blood to the body? A. Right ventricle B. Left ventricle C. Right atr...

ACSM CPT Exam Review Questions and Answers 100% AccurateACSM CPT Exam Review Questions and Answers 100% AccurateACSM CPT Exam Review Questions and Answers 100% Accurate 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. - ANSWER-Answer: D What is the fundamental unit of muscle contraction? A. Myofibril B. Sarcomere C. Myosin D...

IVY TECH APHY 101 Exam 3 || Questions & Solutions (Graded A+)IVY TECH APHY 101 Exam 3 || Questions & Solutions (Graded A+)IVY TECH APHY 101 Exam 3 || Questions & Solutions (Graded A+)IVY TECH APHY 101 Exam 3 || Questions & Solutions (Graded A+) Name the structure highlighted in this anterior view of the knee joint. - ANSWER - Fibular collateral ligament Organize the following parts of a muscle from smallest to largest: muscle fiber, fascicle, myofibril, filament, muscle. - ANSWER - Filament,...

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...

CSCS Practice Exam 2024/2025 Each muscle fiber is surrounded by a connective tissue called? - ANSWER Endomysium What is released from the sarcoplasmic reticulum into the myofibril, causing tension development in a muscle? - ANSWER Calcium ions that bind to troponin What type of muscular contraction occurs in the pectoralis major during the slow, controlled, d...

Each muscle fiber is surrounded by a connective tissue called? a. Fasiciculi. b. Perimysium. c. Endomysium. d. Epimysium. C 5 What is released from the sarcoplasmic reticulum into the myofibril, causing tension development in a muscle? a. Calcium ions that bind to troponin. b. Calcium ions that bind to tropomyosin. c. Sodium ions that bind to troponin. d. Sodium ions that bind to tropomyosin. A 7 00:11 01:35 What type of muscular contraction occurs in the pectoral...

USMLE STEP1 UWORLD NOTES- CVS Doxorubicin(anthracycline) mechanism of causing HF ? ANSWER IS - generate Fee radical, Early> sarcomere swelling. Late> "myofibril dropout" . cause Biventricular CHF and is cumulative toxicity What causes cellular swelling post MI ischemia ? ANSWER IS - Accumulation of Na and Ca in the cell due to pump failure percentage of libman-sacks of all SLE pts? ANSWER IS - 25%. vegis on both side of the valve after how many seconds of complete myocyte ischemi...

NSCA CPT EXAM PRACTICE QUESTIONS & ANSWERS, RATED A+ Which of the following changes in muscle length and tension are associated with a muscle spindle and a golgi tendon? A. MS - rapid muscle length change, GT - increase in muscle tension B. MS - decrease in muscle tension, GT - slow muscle length change C. Slow muscle length change, GT - decrease in muscle tension D. MS - increase in muscle tension, GT - fast muscle length change - -A. MS - rapid muscle length change, GT - increase in ...

ACSM CPT Review Exam Questions & Answers 2024/2025 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. - ANSWERSAnswer: D What is the fundamental unit of muscle contraction? A. Myofibril B. Sarcomere C. Myosin D. Sarcolemma - ANSWERSAnswer: B Which chamber of the heart is responsible for pumping oxygenated blood to the bod...