Matching: Match the structure to the description.  1. Bundle of muscle fibers 2. Connective tissue surrounding a muscle fiber 3. Connective tissue surrounding a fascicle 4. Z line to Z line 5. Where thick myofilaments attach a. Perimysium b. Sarcomere c. Endomysium d. Fascicle e. Tendon f. Myofibril g. Active site

Q: Muscle contraction can occur when: is it 1,2,3,4? A bands lengthen. myosin filaments shorten.…

A: Muscle is a specialized contractile tissue that is a distinguishing characteristic of animals.…

Q: The Sarcolemma in skeletal muscle is OA. Equivalent to the cell membrane which covers the entire…

A: There is muscle tissue throughout the body. The muscles affixed to the skeletal system are referred…

Q: There are 3 types of muscle... skelatal, smooth and cardiac. What type of contraction are they…

A: The skeletal muscles are the voluntary (control by our own will) whereas the smooth and cardiac…

Q: I I 1 1 1 I I I A. On the box provided, label the components that make up the myofibril. Key C…

A: The muscle contraction involves interaction between actin and myosin filaments. The model of muscle…

Q: The unit of muscle structure that is composed of bundles ofmyofibrils, enclosed within a sarcolemma,…

A: Muscle cells or muscles fibres forms the muscle tissue. The muscle tissue together forms a muscle…

Q: 1. A motor unit is a functional unit formed by a neuron and all the muscle fibres it innervates. II.…

A: The spinal cord is the place where motor neurons are located. It is the site of interneurons and…

Q: What property do all muscle tissues have in common?a. composed of collagen and elastin filamentsb.…

A: Muscles are required in breathing, talking, running, walking, and anybody movement. Actin and…

Q: QUESTION 8 How does the nervous system grade the force of muscle contraction? O a. Only by…

A: Nervous system is made up of highly specialised cells called neurons. The function of neuron is to…

Q: An important protein in contractile muscle. OA. keratin O B. myosin O c. elastin OD. fibrin

A: The proteins have a variety of functions in the body. The functions of the proteins in the body are…

Q: Indicate if the statements are TRUE or FALSE. Statements TRUE FALSE Hematopoiesis would most likely…

A: Muscles are important part of body. Body has about 600 muscles forming up a muscular system. These…

Q: Neutral stimulations modulate muscle force output. In the illustration below, fused tetanus is shown…

A: Fused tetanus is a physiological phenomenon observed in muscle contraction, particularly when…

Q: 7 I myosin heads firmly bound to actin 8. | threshold is reached and muscle action potential is…

A: A neuromuscular junction (NMJ) or myoneural junction is the one where a motor endplate of a motor…

Q: During muscle isometric tension, the maximum tension occurs when: O a. There is no overlapping…

A: Isometric contraction occurs when muscle length remains relatively constant as tension is produced.…

Q: Skeletal muscle will be released in its contracted (rigor) state when: Group of answer choices ATP…

A: Please note that the correct statement for the question should be "Skeletal muscle will be released…

Q: Indicate if the statements are TRUE or FALSE. ________ 11. Actin is found only in the striated…

A: A muscle fiber is produced when numerous muscle cells fuses during the course of development. There…

Q: Below are data indicating the percentage of muscle fibers (Type I or Type Ilb) for three different…

A:

Q: The benefit of __ fascicle architecture is the ability to pack more fibers into a given area and…

A: Whenever a group of muscle strands is packaged as a unit inside the entire muscle it is known as a…

Q: Column I Column II   Ca binds to calmodulin 1.           Elastic fibers that anchor thick…

A: COLUMN-I COLUMN-II 1 Z line  Elastic fibers that anchor thick filaments in place 2 actin and…

Q: 21. Summarize the events that occur during the Excluation-Contraction Coupling Phase in a skeletal…

A: Neurons are the cellular components of the nervous system that help in nerve impulse transmission.…

Q: Motor neuron 4 Muscle fiber nucleus Myofibril of muscle fiber Figure 10.15. Details of the…

A: A neuromuscular junction is the region of chemical interaction between the axon terminal of neurons…

Q: During sarcomere contraction, Select one: Oa. Calcium, troponin Ob. Calcium, microfilaments O c.…

A: The answer is option A- calcium, troponin

Q: Fast oxidative glycolytic fibers in skeletal muscle are used Select one: O a. intermittently, for…

A: "Muscles" perform various functions as movement, which is the fundamental purpose of muscles is to…

Q: Each of the pairs of phrases below describe steps during skeletal muscie contraction. The 2nd phrase…

A: Muscle tissue is a type of tissue which contain actin , Troponin and myosin proteins so as to allow…

Q: There are 3 types of muscle... skelatal, smooth and cardiac. What type of contraction are they…

A: The skeletal muscles are the voluntary (control by our own will) whereas the smooth and cardiac…

Q: The functions of tropomyosin in skeletal muscle include sliding on actin to produce shortening…

A: 1. acting as a relaxing protein at rest by covering up the sites where myosin binds to actin  2.…

Q: The Terminal Cisternae are: OA. The basic contractile unit in skeletal muscle O B. Equivalent to the…

A: Terminal cisternae In anatomy, these are defined as the areas that are present in the muscle cells…

Q: Actin in action, muscle satisfaction. The movement of biceps require sarcomere Select one: a.…

A: Your muscles are extended, shortened, or tightened when you undertake an activity. It might occur…

Q: Describe the sequence of events involved in myosincross-bridge attachment and detachment. Relate…

A: In physiology, myosin is defined as the protein that binds and attach with actin protein on the…

Q: The actual contractile units of muscle, called _____, extend from middle of one _____ to middle of…

A: Muscles are referred to as the soft tissue of the body, contraction, and relaxation of the muscle is…

Q: which type of muscle fibers is ATP synthesized aerobically in mitochondria?…

A: Source of energy which is utilized to power the movement of contraction in working muscles is…

Q: he factor(s) that determine the duration of a twitch in various types of fibers is the speed of the…

A: Muscle contraction is a complex biological process that involves the interaction of various…

Q: Diagram a sarcomere, showing the basic organization ofthin (actin) and thick (myosin) filaments.…

A: Sarcomere- A unit of tissue of striated muscle is called a sarcomere. It is the area falling between…

Q: what happens to skeletal muscle if there is no ATP present but plenty of calcium. Be specific…

A: Sliding filament theory is the most widely accepted explanation for muscle contraction. It states…

Q: • A. Fatigue • 10. Lots of Ca++ in myofibril; • B. Normal Contraction C. No contraction (muscle is…

A: As we know Muscles are tissues that bring about movement by contraction. Each muscle is collected…

Q: Flexing your forearm with no load (nothing in your hand) involves primarily muscle fibers. O Type 2X…

A: Slow twitch muscle filaments, which move all the more slowly however help to keep you moving…

Q: Describe how an action potential triggers muscle contraction. Know the specific molecules involved,…

A: A muscle contraction means a reduction in the length of the muscle or an increase in tension. A…

Q: The cell membrane of a muscle fiber is called________.a. myofibrilb. sarcolemmac. sarcoplasmd.…

A: Muscle is a soft tissue which is found in most animals. They are helpful in providing movement and…

Q: Draw the organization of a skeletal muscle and show the various types of connective tissue,…

A: Skeletal muscle is one of three major muscle types, the others being cardiac muscle and smooth…