Myofibrils - Study guides, Class notes & Summaries

CSCS Exam Practice Questions 2024, NSCA CSCS - Study Review Rated A+ Perimysium (surrounding group of fibers/fascicules) Endomysium (surrounding individual fibers) Fascia Delicate "cobwebby" tissue Motor Unit Motor Neuron and the muscle fibers it innervates Typically several hundred muscle fibers in a single motor unit Sarcolemma The plasma membrane of a cell Transverse Tubules Connect to plasma membrane to interior Action potentials travel through Ensures AP exci...

ISSA Nutrition Final Exam Questions and Answers Graded 100% Latest 2023. Approximately how many calories are in 1 gram of fat? a.6 b.7 c.5 d.9 18. Marathon training primarily recruits which type of fibers? a. Type IIx b. Type II c. Fast twitch d. Slow twitch 19. Fat-soluble vitamins include A, D, E, and which of the following? a. B b. C c. K d. H 20. A client is Type I diabetic and asks for a meal plan, what should the trainer do? 21. The knee is stabilized on the anterior side b...

Bio 161 Exam 4 Latest Version Graded A+ Question 1: What is the term for an individual cell of a muscle? - a. muscle fiber - b. fascicle - c. myofibril - d. sarcolemma - Answer: a. muscle fiber Explanation: A muscle fiber refers to an individual cell of a muscle, containing multiple myofibrils. Question 2: What is the name given to a group of muscle cells within the belly of a muscle? - a. sarcolemma - b. sarcoplasm - c. fascicle 2 - d. myofibril - Answer:...

What is the smallest level of organization in the body that contains the body's genetic information? Select one: a. chemical b. cellular c. tissue d. organism - Answer-B. Cellular The cellular level includes the nucleus, an organelle that contains the body's genetic information. Which is an example of a normally occurring positive-feedback mechanism? Select one: a. elevated blood pressure during exercise b. increase in heart rate after blood loss c. decrease in blood pressure a...

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

NURS 612 Exam 4 with Complete Solutions Osteoblasts Correct answer Primary bone-producing cells -young immature cell Osteocytes Correct answer Transformed osteoblasts that are surrounded by new bone tissue Osteoclasts Correct answer The major reabsorptive cells of the bone (breaks down bone) New bone is soft and hardens when it gets mineralized by _______ and _________ Correct answer calcium and phosphate Joints are also called _________ Correct answer articulations The functional un...

exam 1 = 29 questions  3 essay questions  7 image questions  Rest is M.C. 1. Gross structure of muscle and surrounding connective tissue: a. The muscle is arranged in a hierarchical structure: i. Whole muscle: 1. Made up of multiple muscle fascicles 2. Surrounded by epimysium: a. External sheath of connective tissue surrounding the whole muscle. b. Separates whole muscles from one another ii. Muscle fascicle: 1. Bundles of individual muscle fibers 2. Surrounded by perimysi...

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...

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...

Osteoblasts ~ Primary bone-producing cells -young immature cell Osteocytes ~ Transformed osteoblasts that are surrounded by new bone tissue Osteoclasts ~ The major reabsorptive cells of the bone (breaks down bone) New bone is soft and hardens when it gets mineralized by _______ and _________ ~ calcium and phosphate Joints are also called _________ ~ articulations The functional units of muscle contractions are _________. They are made of _______ and ________ ~ Myofibrils; act...