The functional unit of skeletal muscle is the sarcomere area between two Z lines and sarcomere area between two Z lines smallest contractile component of a muscle fiber all of these

Q: which decreases cytoplasmic calcium ion concentration The relaxation of skeletal muscle relies on…

A:

Q: A major protein in the muscle is a thick fiber called actin.

A: Muscle fibres are made up of just one muscle cell. They aid in the regulation of the body's physical…

Q: Compare and contrast the three skeletal muscle fiber types.

A: Skeletal muscle can be defined as one of three major muscle types, the others being  are the cardiac…

Q: Muscle contraction results from interactions between thin filaments, composed mainly of the…

A: Actin Myosin ATP

Q: When an individual sarcomere undergo contraction, which of the following happens? H band and I band…

A: A sarcomere is the basic contractile unit of muscle fiber. Each sarcomere is composed of two main…

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: Skeletal muscle cell(key terms: striated, contracting proteins, contractions, nucleus location) This…

A: Skeletal muscle cells are the cells that help us move and are compartmentalized in the body into…

Q: Slow twitch (sometimes called type I) muscle is the main muscle tissue used during endurance…

A: Muscle fibres of various types can be found in most of the body's muscles. However, some muscles…

Q: true or false. smooth and cardiac muscle are innervated by autonomic nervous system, whereas…

A: A muscle is a group of tissues, which contract together to produce a force. It is composed of…

Q: Which of the following muscle types and characteristic is correctly matched?    Smooth muscle :…

A: The correct option is 1The smooth muscles are present in the walls of intestine, urinary bladder,…

Q: Which of the following properties is not common to allthree muscle tissues?a. excitabilityb. the…

A: There are three types of muscle tissues namely, cardiac, skeletal, and smooth which perform many…

Q: Myofibis in muscle fibres are made up of repeating units of dark and light bonds called

A: Myofibril is a muscle cell that is shaped like a rod. Many chains of Myofibril bound together to…

Q: Why are calcium ions so important for the muscle contraction process

A: Muscle contraction is a process carried out by the interaction of the actin and myosin proteins. It…

Q: number graded recruitment constant summation contraction Not all muscle contractions are of equal…

A: The muscle fiber helps in the process of muscle contraction, which helps in the movement.  When the…

Q: Muscle tissue that directly attaches to bone and is under voluntary cont All the muscle fibers…

A: 1.A decreased ability for a muscle to sustain or generate force/tension. Answer: Fatigue 2. Muscle…

Q: The motor end plate is _ a folded area of muscle cell membrane a specialized protein on the…

A: Motor end plate  It a special type of synapse where motor axon touches to a targeted muscle cell.

Q: Skeletal muscle cells undergo contractions based on a molecular mechanism involving: 1)the sliding…

A: The skeletal muscle cells contract by using myosin and actin filaments. These cells are accountable…

Q: Multinucleated smooth muscle results from the fusion of embryonic mesenchymal cells called myoblasts…

A: Although the human body is a singular entity, it is composed of billions of smaller entities of the…

Q: A muscle has a limit to how much it can contract, based on the limit of contraction of each…

A: The study of the human body can be divided into anatomy and physiology. The anatomy studies about…

Q: As skeletal muscle shortens with contraction, the length of the I band remains constant as the…

A: Muscle contraction is defined as the process of stimulation of tension generation sites present…

Q: Label different areas of an individual muscle unit known as a sarcomere below: Actin A Band Mline Z…

A: The sarcomere is the contraction unit in the skeletal muscles that are under the control of motor…

Q: A smooth, sustained contraction from rapid stimulation of skeletal muscle fibers is called

A: TISSUE: These tissues differ from others in that they have the ability to contract and relax, which…

Q: A motor unit associated with the stimulation of skeletal muscle is designated as a 1:8 motor unit.…

A: A motor unit is made up of a motor neuron and the skeletal muscle fibres innervated by that motor…

Q: The contractile unit of a muscle fiber is called: O myosin O actin sarcomere O sarcolemma

A: Introduction :- Muscle fibres are made up of just one muscle cell. They aid in the control of the…

Q: During muscle contraction, which of the following processes takes place? Select one: O a. AMP…

A: Please follow step 2 & 3 for detailed explanation.

Q: The concentration of Ca++ in the cytoplasm of the muscle fiber is [ Select ] than that of the…

A: Answer : the concentration of Ca++ in the cytoplasm of the muscle fibre Is lower than that of the…

Q: A fatigued muscle will

A: Muscle refers to the soft tissue present generally in animals. Cells of muscle tissue are made up of…

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: "When a muscle develops increased tension, but does not shorten, it is said to exhibit" O isotonic…

A: Muscle contraction is the development of tension in the muscle fibers. It can be described with two…

Q: Acetylcholinesterase is the enzyme that breaks down and inactivates acetylcholine. Some nerve gases…

A: Nerve gas binds to acetylcholinesterase enzyme but only at 1 site. Nerve gas has a phosphorus group…

Q: Letter C is labeling А Tendon

A: Muscle are basically a soft tissue which have property of undergo contractions with action potential…

Q: Draw the diagram of a sarcomere of skeletal muscle showing different regions.

A: Muscle is formed by skeletal muscle fiber and they contain cytoplasm with cellular structures such…

Q: Describe what is happening to the following parts of a sarcomere during muscle contraction. a. H…

A: H band or H-zone is the central region of the A zone. H zone only contains thick filaments i.e.…

Q: "When a muscle develops increased tension, but does not shorten, it is said to exhibit" isotonic…

A: Muscle contraction It is defined as the tightening, shortening, or lengthening of muscles during the…

Q: Which of the following regions of a sarcomere does not change length during a contraction because it…

A: Skeletal muscles are voluntary muscles. The contraction and relaxation in the skeletal muscle enable…

Q: a muscle cell structural element that consist primarily of an actin filament is a/an______

A: A Muscle cell has actin filaments which formed structural element of muscle.

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: The shortening of _____________ will cause the shortening of a muscle fiber

A: A sarcomere is the basic contractile unit of muscle fiber. Each sarcomere is composed of two main…

Q: The diagram below represents the terminal cisterna in a muscle. Name and briefly explain the…

A: Calcium causes contraction by reacting with regulatory proteins that prevent actin and myosin from…

Q: When Skeletal muscle contracts an arrangement of the alternating light and dark bands traversing…

A: During muscle contraction calcium is released from the sarcoplasmic reticulam which binds with the…

Q: What is the fastest manner in which skeletal muscle  cell produce ATP? Utilization of fatty acids…

A: In movement, organism moves body parts or parts whereas, in locomotion, an organism change its…

Q: The outermost layer of connective tissue surrounding a skeletal muscle is the epimysium tendon…

A: Step 1 Skeletal muscle consists of numerous muscle cells called muscle fibres. These muscle fibres…

Q: Which of the following is FALSE for generating muscular tetanus? The plasma membrane remains…

A: Tetanus When the motor neuron that stimulates a skeletal muscle transmits action potentials at a…

Q: In order to form a cross bridge in skeletal muscle sarcomeres, calcium must bind to __________ and…

A: Calcium is required for muscle contraction. A muscle is made up of actin and myosin. Actin are…

Q: During muscle contraction, calcium ions are released by the

A: During muscle contraction, the calcium ions are released by the sarcoplasmic reticulum.

Q: Which of the following proteins in the skeletal muscle myofiber anchors thick filaments to the Z…

A: Myofilaments are the filaments of myofibrils. The different arrangements of myofilaments lead to the…