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 5 Which of the following are characteristics of smooth muscle tissues, making it…

A: Smooth muscles are also called involuntary muscle .This muscle shows no striping under the…

Q: 14. View the images below and circle the image which shows the sarc tension – and WHY Explanation:

A: Each muscle fibre is composed of units called myofibrils that are consists of alternating dark(A)…

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: 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 part of the sarcolemma contains acetylcholine receptors? A) motor end plate B) any part of the…

A: Skeletal muscles are muscles which are under voluntary control. They are also known as striated…

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: The effect of aging on the muscle tissue include decrease in , and increase in

A: Muscle tissue is a delicate tissue that makes muscles in animal bodies, and offers ascend to…

Q: Which of the following best describes the phenomenon of actin filament treadmilling? O Treadmilling…

A: Actin and myosin are two of the main proteins involved in muscle contraction. Actin is a protein…

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: 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: QUESTION 17 What type of muscle would we find as the predominant muscle type in marathon runners?…

A: The objective of the question is to identify the predominant muscle type in marathon runners.

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: atent phase V [ Choose ] Active return of Ca2+ into SR Ca2+ released from SR Power stroke of…

A: Alpha motor neurons are the neurons which  innervate the skeletal muscle fibers. On entering a…

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: 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: 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: What occurs when the sarcomere length of skeletal muscle is reduced beyond the length w optimum…

A: Skeletal muscle contains connective tissue surrounding the muscle fibers and have their blood supply…

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 -…

Q: QUESTION 9 Which of the following is true about skeletal, smooth and cardiac muscle? OA. They are…

A: The question is asking us to identify the common characteristic among skeletal, smooth, and cardiac…

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

A: Introduction: The nervous system is primarily responsible for information transmission via…

Q: QUESTION 5 Which of the following is not a function of skeletal muscle? O A. Facilitate the movement…

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

Q: Question 1 In a NMJ, what happens to the sarcolemma when acetylcholine is released into the synpatic…

A: A neuromuscular junction or a myoneural junction is a synapse between the terminal end of a motor…

Q: The transverse tubules store and release calcium ions (Ca<") in response to an action potential in a…

A: The transverse tubules are formed by phospholipid bilayer and play a significant role in the…

Q: During which step of a muscle contraction cycle is ATP needed? when myosin head does a power stroke…

A: Muscle contraction occurs when tension is generated in the muscle fibers. It occurs due to the…

Q: Question 1. Describe an action potential in a muscle fiber in detail, know the changes in voltage…

A: An action potential is a brief electrical signal that travels along the membrane of a neuron or…

Q: QUESTION 19 Which of the following is when muscle contraction occurs with a single electrical shock?…

A: The question is asking to identify the type of muscle contraction that occurs when a muscle is…

Q: QUESTION 2 The transverse tubules store and release calcium ions (Ca2+) in response to an action…

A: A muscle is composed of a group of muscle fibers, and the plasma membrane of the muscle fiber is…

Q: What do synaptic vesicles of a neuromuscular junction contain?   a serotonin   b sodium   c…

A: A neuromuscular junction is a chemical synapse between a motor neuron and a muscle fiber. It allows…

Q: QUESTION 8 Which of the following is true about rigor mortis? O A. The muscle relaxes because there…

A: The objective of the question is to identify the correct statement about rigor mortis, a postmortem…

Q: Question 41 The sliding filament model of contraction involves----- A) Actin and myosin sliding…

A: Sarcomeres are a set of simple units organized in a stacked pattern in muscle tissue. Many parallel…

Q: QUESTION 24 Which statement is correct? A В C: E D The structure labeled C is called the A band The…

A: Muscles are the main system of the body that help in movements. Sarcomere is the basic unit of…

Q: The Sarcomere Thick filaments are primarily made of which protein? a. actin b. myosin c. troponin d.…

A: Muscle is important to us to survive. The heart is our body's greatest muscle and still tries to…

Q: Question 3 What part of the muscle fiber is a place of storage for calcium ions that is critical for…

A: Muscle contains muscle fiber cells which are specialized for contraction. Based on location,…

Q: Question 10. Why does the sarcomere length appear to shorten (from Z line to Z line) when a muscle…

A: The striations on muscles are formed due to a pile of sarcomeres. It encompasses the basic structure…

Q: The sliding filament model of contraction involves

A: The sliding filament model: The mechanism of muscle contraction is explained by sliding filament…

Q: How is smooth muscle contraction regulated differently from striated skeletal muscle contraction?

A: Option A is incorrect  Explanation: Smooth muscle have thick and thin filaments which do not arrange…