Myofibril - Study guides, Class notes & Summaries

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 ...

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...

Myocyte Muscle cell Sarcolemma Plasma membrane of myocyte Sarcoplasm Cytoplasm of myocyte Myofibril Tightly packed filament bundles found within skeletal muscle fibers. Contractional unit of a muscle cell. Sarcoplasmic reticulum Site of calcium storage in a muscle cell. Surrounds the myofibrils Transverse tubules (T-tubule) Inward extensions of the sarcolemma that dive into the muscle fiber and surround each myofibril to form a tunnel-like network within the muscle fiber Terminal cisternae...

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...

During swallowing, the hyoid bone moves downward. During swallowing, the larynx elevates. Ans- The first statement is false, the second statement is true Which nervous system produces the fight-or-flight reaction? Ans- Sympathetic What is mobilized in and out of the blood during bone remodeling? Ans- Calcium Which of the following cranial nerves pass through the foramen ovale of the sphenoid bone? Ans- Trigeminal mandibular The maxillary branch of the trigeminal nerve passes through ...

Nsca CPT Practice Questions With 100% Correct Answers 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 - answerA. MS - rapid muscle length change, GT - increase...

A&P Straighteline Final ACTUAL EXAM QUESTIONS AND REVISED CORRECT ANSWERS | UPDATED !! What is smooth muscle tone? Select one: a. can rapidly develop action potentials b. shallow invaginations of cell membrane c. relatively constant tension maintained for a period of time d. intracellular cytoskeleton e. enzyme that removes phosphate from myosin - ANSWER : c. relatively constant tension maintained for a period of time The sites where a chemical substance is transmitted from the ...

Three types of muscle in the human body are the following except: a. striated b. cardiac c. smooth d. celiac - Answer d. celiac The following are FUNCTIONAL characteristics of muscle except: a. heat production b. communication c. excitability d. extendability - Answer C. communication A muscle cell membrane is: a. a sarcolemma b. made of dense connective tissue c. larger the muscle organ itself d. non permeable - Answer a. a sarcolemma The 2 myofilaments in a myofi...

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: D What is the fundamental unit of muscle contraction? A. Myofibril B. Sarcomere C. Myosin D. Sarcolemma - ️️Answer: B Which chamber of the heart is responsible for pumping oxygenated blood to the body? A. Right ventricle B. Left ventricle C. Right atrium...

what is kinesin used for? walk along microtubules (towards plus end) what type of distances do kinesin move items? long distances Previous Play Next Rewind 10 seconds Move forward 10 seconds Unmute 0:03 / 0:15 Full screen Brainpower Read More what are the two types of dineins? cytoplasmic, cilia/flagella what do cytoplasmic dinein do? move inwards in cell what is an example of cilia movement? moving dust out of lungs what is an example of flagella? sp...