Spindle fiber - Study guides, Class notes & Summaries

Movement Science Final Exam Questions and Answers Rated A+ Extensibility of soft tissues that cross joints necessary for unrestricted, pain-free movements through functional ROM Flexibility Ability of muscle/tendon to relax or deform & yield to stretch/lengthening force Extensibility Any therapeutic maneuver designed to increase mobility of soft tissues and subsequently improve ROM by elongating structures that have adaptively shortened and have become hypo-mobile over time Stretching Decrea...

Explain the events occuring in each phase of Meiosis I - Answer Prophase I - Centrioles move to opposite ends. Spindle fibers form, and chromosomes condense Metaphase I- Chromosomes attach to the spindle fibers and line up at the equator of the cell Anaphase I - Chromosomes are spereated by spindle fiber and chromatids go to the poles Telophase I- Chromatides decondense back into chromatin and 2 new nuclear envelopes form.

6 Stages of Cell Cycle Latest Update 100% Solved Interphase The cell grows to its mature size, makes a copy of its DNA, and prepares to divide into two cells. Centrioles are also copied. Prophase Chromatin in the nucleus condenses to form chromosomes. Spindle Fibers form a bridge between the ends of the cell. Metaphase The chromosomes line up across the center of the cell. Each chromosome attaches to a spindle fiber at its centromere. Anaphase The centromeres split. The two chromatids separat...

NSCA CSCS EXAM REVIEW Questions and Answers 2023/2024 (Graded). Which of the following substances regulates muscle actions? potassium calcium troponin tropomyosin calcium Which of the following substances acts at the NMJ to excite the muscle fibers of a motor unit? acetylcholine ATP creatine phosphate serotonin acetylcholine When throwing a baseball, an athlete's arm is rapidly stretched just before throwing the ball. Which of the following structures detects and responds to that ...

Neural Circuitry that travels outside the spinal cord - ANSWER-Peripheral nervous system A sensory receptor within a muscle that detects changes in length and helps regulate contraction - ANSWER-Muscle Spindle Branches of the cell body that act as receivers, collecting information from other neurons - ANSWER-Dendrites Muscle contraction is triggered when the following chemical neurotransmitters binds to receptors on the muscle - ANSWER-acetylcholine Division of the peripheral nervous...

Issa Strength & Conditioning, Strength and Conditioning EXAM ISSA Neural Circuitry that travels outside the spinal cord - answerPeripheral nervous system A sensory receptor within a muscle that detects changes in length and helps regulate contraction - answerMuscle Spindle Branches of the cell body that act as receivers, collecting information from other neurons - answerDendrites Muscle contraction is triggered when the following chemical neurotransmitters binds to receptors on the muscl...

Cell Cycle Worksheet Questions and Answers Already Passed In what phase do sister chromatids move apart? Anaphase Phase?: The nucleolus begins to fade from view. Prophase Phase?: A new nuclear membrane is forming around the chromosomes. Telophase Phase?: The cytoplasm of the cell is being divided. Telophase Phase?: The chromosomes become invisible. Interphase Telophase Phase?: The chromosomes are located at the equator of the cell. Metaphase Phase?: The nuclear membrane begins to fade from...

NFPT Practice Exam 2024 The muscle fiber type recruited for an endurance event, such as a marathon, would be which of the following? - ANSWER Red slow twitch Which of the following could be a reason that muscles experience atrophy? - ANSWER Aging process Where are the rhomboid muscles located? - ANSWER Deep...

CSCS Practice Exam Questions and Answers 100% Correct CSCS Practice Exam Questions and Answers 100% Correct CSCS Practice Exam Questions and Answers 100% Correct CSCS Practice Exam Questions and Answers 100% Correct 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 ...

Binary Fission steps - -Initiated when proteins attach DNA to plasma membrane -Begins along ORI region -Newly synthesized DNA also anchored to membrane -Cell elongates until ~2 times its original size and two has two chromosomes on opposite ends of the cell -Cell splits in two Quiescent stem cells, function - Permanently arrested in G0 phase. In adults: can replace non-reproducing specialized cells) ex adult skeletal muscle/myofiber) Steps of quiescent stem cell to myofiber - -Activate...