Myosin - Study guides, Class notes & Summaries

Anatomy and Physiology HESI A2 Admission Assessment 4th edition 154 Questions with Verified Answers Medial -CORRECT ANSWER toward the midline Lateral -CORRECT ANSWER away from the midline Proximal -CORRECT ANSWER closer to point of attachment Distal -CORRECT ANSWER farther away from point of attachment What plane divides the body into superior and inferior portions? -CORRECT ANSWER transverse plane What plane divides the body into left and right halves? -CORRECT ANSWER Sagitt...

Myosin correct answers Thick filament in sarcomere Actin correct answers Thin filaments in sarcomere Z line correct answers Connective tissue that binds actin and myosin in a sarcomere What is the first step in muscle movement? correct answers 1. In the ready state, the myosin crossbridge is tightly bound at a 45 degree angle to the actin filament What is the second step in muscle movement? correct answers 2. ATP binds to myosin, allowing it to release from the actin filament What...

NASM FINAL EXAM QUESTIONS AND CORRECT ANSWERS 2024/2025 ALREADY GRADED A+. 2 / 23 1. After leaving the left ventricle, blood enters which of the following struc-tures? Select one: a. Superior vena cava b. Aorta c. Inferior vena cava d. Pulmonary artery: Aorta 2. Which of the following joints is between the metacarpals and phalanxes? Select one: a. Condyloid b. Pivot c. Saddle d. Hinge: Condyloid 3. According to continuing education requirements, which of the following istrue? Se...

GMS 6474 Questions and Answers Rated A+ Lecture 2 Muscles can either be ____ or ____? 1. Voluntary 2. Involuntary What is one question to ask when comparing voluntary to involuntary muscles? How is the underlying tissue metabolized? Cardiac functional syncytial vs smooth muscle functional syncytial? Cardiac - pacemaker cells cause contractions Smooth - vasodilation/vasoconstriction True/False: Smooth muscle has striations? FALSE! what two factors determine the force pro...

A&P 1 101 Module 5 Exam Question 1 2 / 2 pts There are three types of muscle tissue found in the body. Correct! True False Question 2 2 / 2 pts Smooth and cardiac muscle tissue are both un der voluntary control. True Correct! False Question 3 2 / 2 pts The musculocutaneous nerve is part of the central nervous system. True Correct! False False- this is a peripheral nerve Question 4 2 / 2 pts A motor signal is a signal that is sent from a muscle to the central nervous system. True Correct! False F...

Week 1 & 2 Exam: BIOS252 / BIOS 252 (Latest Update 2024 / 2025) Anatomy & Physiology II with Lab | Review Questions with Verified Answers | 100% Correct | Grade A - Chamberlain Question: True or False: Smooth muscles are characterized by striations. Answer: False Question: True or False: Smooth muscles are found in hollow organs of the body. Answer: True Question: True or False: Smooth muscles contain actin and myosin filaments. Answer: True Question: True or ...

Comprehensive Exam: BIOS255 / BIOS 255 (Latest Update 2024 / 2025) Anatomy & Physiology III with Lab | Test Questions & Answers | 100% Correct | Grade A - Chamberlain Question: _____________ channels respond to changes in membrane potential. Answer: Voltage-gated Question: Which of the following regulatory proteins covers the myosin-binding sites on actin? Answer: Tropomyosin Question: Calcium must bind to which protein to initiate muscle contraction? Answer: Tropo...

Phosphatase correct answers This myosin-actin interaction forms the basis of the cross-bridge cycle (CBC), which causes muscle contraction, as in skeletal -bridge cycling (CBC) requires phosphorylation of the myosin light chain (LC20). A .............. is an enzyme that removes a phosphate group from its substrate composed of actin and are dynamic and are lengthen by polymerization or shortened by depolarization correct answers microfilaments are provide strucule support for the cell ...

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 ______ Gactin. 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 calcium ions from the sarcoplasm back into the sarcoplasmic reticulum would...

Which steps involved in the contraction of a skeletal muscle require binding and/or hydrolysis of ATP? I Dissociation of myosin head from actin filament II Attachment of myosin head to actin filament III Conformational change that moves actin and myosin filaments relative to one another IV Binding of troponin to actin filament V Release of calcium from the sarcoplasmic reticulum VI Reuptake of calcium into the sarcoplasm A. I, II, and III only B. II, III, and IV only C. I, III, and ...