Question 13 Write down the types of muscle contractions and describe each of them briefly. How is it ensured that our muscles in our body work in coordination?

Q: QUESTION 10 Endurance training increase the number of: O slow fibers, which are fatigue-resistant O…

A: Muscle fibres can be defined as the muscle cells that are functionally accountable for controlling…

Q: question 3

A: 1. With age the collagen increases in the tissues. Collagen is stiff as compared to muscles.

Q: What is the molecular explanation for the observation that the I band appears to shorten in a muscle…

A: The basic contractile unit of muscle fibre is the sarcomere. Each sarcomere is made up of two…

Q: Which of this muscle is found in heart? O cardiac muscle O smooth muscle O skeletal muscle

A: Muscles are in the form of contractile fibres varying in lengths and form muscular tissue. The…

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: Activating a muscarinic receptor coupled to which G protein would cause calcium to be released? Gs

A: Activating a muscarinic receptor coupled to Gq protein causes calcium to be released.

Q: "Motor neurons trigger action potentials in muscle cell membranes that open voltage-sensitive Ca2+…

A: Introduction: The contraction of the muscle is significantly influenced by calcium ions. When…

Q: QUESTION 16 Which of the following term does not fit with smooth muscle? O A. Fusiform O B. Dense…

A: The objective of the question is to identify the term that does not associate with the…

Q: UESTION 1 nge the three types of muscle from the one in which the calcium that causes contraction…

A: Sarcomere is the contractile unit of each muscle. The contractions in muscle cells are initiated by…

Q: If a skeletal muscle is no longer able to make enough ATP, then: There will be low levels of…

A: ATP is essential for muscle contraction. When ATP is lacking, it affects the cross-bridge cycling…

Q: Considering these events, what is the right sequence in muscle contraction? i. Ca2+ released from…

A: Muscles are the connective tissues that are involved in the movement by their contraction and…

Q: QUESTION 10 Which of the following is not a phase of muscle contraction? O A. Excitation O B.…

A: The question is asking us to identify which of the given options is not a phase of muscle…

Q: Question 30 How does muscles stabilize the skeletal system? Muscles... ...create torques at skeletal…

A: Muscles are attached to bones via tendons & are responsible for producing movement and…

Q: What is occurring during the repolarization phase of an action potential? O Voltage-gated…

A: Answer. All cells have an electrical potential difference, or membrane potential, across the plasma…

Q: What happens when troponin and tropomyosin block the active sites of actin? O The muscle contraction…

A: Troponin is basically a complex of three regulatory proteins which are troponin I, troponin C, and…

Q: As mentioned in class, one additional major use of ATP in skeletal muscle (besides powering the…

A: Assumptions:The volume of a single sarcomere is roughly cylindrical.The average diameter of a…

Q: OA. The myogenic response is an extrinsic mechanism that regulates blood flow in response to changes…

A: Myogenic response is the mechanism by which arteries and arteriole react with the increase or…

Q: Using this diagram and the points indicated (A, B, C) please explain how to treat congestive heart…

A: A chronic progressive condition affecting the cardiac muscle's pumping power is Congestive heart…

Q: Sarcomeres are functional units _____muscle A) Cardiac B) Skeletal C) B and C only D) Smooth

A: To say that the sarcomere is the practical unit implies that every one of the segments required for…

Q: Question 6 (1 point) The crossbridge cycle can begin when an action potential travels t-tubules…

A: During the muscle movements, the thick filaments slide over the thin filaments and results in the…

Q: Question 9 of 16 Which of the following causes the merging of synaptic vesicles with the synaptic…

A: In this question synaptic transmission of impulse is shown. So synapse is a connecting point between…

Q: QUESTION 3 In a contracted muscle, sarcomeres are O A. stretched; also stretched O B. narrowed; the…

A: The objective of the question is to understand the changes in the structure of sarcomeres during…

Q: Predict the effect of a substance that inhibits sodium channels from opening. How might this…

A: Introduction The neuron is the small but important functional unit of the central nervous system…

Q: Which of the following is false? O alpha receptors cause smooth muscle to contract O Beta receptors…

A: G protein-coupled receptors such as muscarinic, beta, and alpha receptors are involved in…

Q: Question 37 The Sarcoplasmic Reticulum is: OA. The basic contractile unit in skeletal muscle O B.…

A: Sarcoplasmic reticulum It refers to a membrane-bound structure constituting a network of tubules…

Q: D Question 38 1 pts You take a human smooth muscle cell and block the release of calcium from the…

A: Q 38.) :- ans.In smooth muscle cells, contraction is triggered by the presence of calcium ions…

Q: QUESTION 2 During muscle relaxation, calcium returns to the sarcoplasmic reticulum via: Calcium…

A: Sarcomeres are the fundamental functional units of the muscle cell, which helps in contraction and…

Q: In a contractile unit of muscle, "thin" filaments are composed of А. O A. calcium. O B. actin. OC.…

A: Muscle contraction leads to shorting the length of muscle. Muscle contraction implies that movement…

Q: Question 2 of 16 The relatively light portion of the A band of skeletal muscle Select the correct…

A: Skeletal muscle- Skeletal muscle forms about 40-50% of body mass and is responsible for movement and…

Q: The part of the muscle that is enclosed in perimyskum. The part of a muscle fiber that aids in…

A: Hello you have asked multiple subparts questions. We will be able to answer only first three. For…

Q: None of the other answers. O Contract more quickly O Contain less myoglobin ESTION 4 muscle, when…

A: The two types of skeletal muscle fibers are slow-twitch (type I) and fast-twitch (type II). Twitch”…

Q: QUESTION 6 At the neuromuscular junction, a neurotransmitter called open, allowing an influx of OA.…

A: The question is asking about the specific neurotransmitter and ion involved in the process of muscle…

Q: What is the correct order that a motor nerve stimulation encounters structures in triggering a…

A: Muscular system is a type of body system which is involved in Contraction and relaxation, thus…

Q: Which of the following is the CORRECT relationship?

A: Phosphatidylinositol 4, 5 bisphosphate is known as PIP2 that is a component of cell membrane -…

Q: Question 4 of 16 The physiologic event that takes place at the sarcolemma of a skeletal muscle cell…

A: The skeletal muscles are under the control of central nervous system that regulates the contraction…

Q: What type of tissue is able to generate electrical signals, force and movement? endocrine glands…

A: Biology refers to the branch of science that deals with the study of living organisms. All living…

Q: Why do cardiac muscle fibers have a long re O To allow time for blood filling Refractory period is…

A: The heart is considered a muscular organ located front and middle of the chest region. It is made up…

Q: QUESTION 14 1. As you walk through the Reading Terminal, you browse one of the fish stands. You see…

A: The main distinguishing feature of bony fishes is the that their skeleton is made of true bone and…

Q: QUESTION 6 A muscle organ shortens during: eccentric contraction O isometric contraction O…

A: According to our guidelines we can answer only the first three supbarts of a question. So, upload…

Q: The inferior surface of a neuron’s plasma membrane at resting membrane potential will have--- A)…

A: Resting Membrane potential is a state when the cell do not get impulse and is not excited. It is…

Q: An individual "step" by a myosin head in one cycle pulls the thin filament about 15 nm. How many…

A: To find the number of steps each actin filament/fibre must make in one contraction, you need the…

Q: Sarcolemma is the plasma membrane of the muscle fiber. Myosatellite cells, remain closely associated…

A: “Since you have posted a question with multiple sub-parts, we will solve first three sub-parts for…

Q: Alter death, calcium pumps no longer fünction and the calcium ion concentration of muscle fiber…

A: * After death of an animal or organism the calcium pump stops hence calcium should not be pumped and…

Q: What is the basic functional unit of a myofibril? a. endomysium b. sarcomere c. muscle fiber d. gap…

A: Muscles are specialized tissues which play an important role in body movement along with bones. They…

Q: QUESTION 18 Which of the following binds to calcium? O A. Troponin OB. Tropomyosin O C. Myosin OD.…

A: The question is asking which among the given options - Troponin, Tropomyosin, Myosin, and Actin -…