T-tubules are invaginations of the sarcolemma of a muscle cell. True or False True False

Q: Muscles in unfused/incomplete tetanus reach maximum tension while relaxing slightly between stimuli.…

A: Tetanic muscle contraction Tetanic muscle contraction can be either complete or incomplete. Complete…

Q: Actin is sometimes called the "thick" filament. It splits ATP and is responsible for the "power…

A: The movements of different body parts are attributed to the systemic contraction and relaxation of…

Q: A nerve fiber,together with all of the muscle fibers it innervates, is called amotor unit. A motor…

A: The plasma membrane of a neuron can change its potential from a resting potential to an action…

Q: description of the observed characteristic of the muscle type in the photo, and observe the muscle…

A: The muscle tissue is a contractile tissue found in animals which aids in different body movements by…

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: The ---- is attached to bones via tendons. muscle fasciculus Whole skeltetal muscle myofilament…

A: Introduction The skeletal system provides a support system to the body of the organisms. It provides…

Q: Hypertrophy is the growth of muscle via formation of new muscle fibers     True   False

A: Introduction:- Hypertrophy increases the size of cells (or tissues) in response to various stimuli.…

Q: The 2 main proteins in muscle cells are _______ and ___

A: According to the question, we have to mention the names of the two main proteins present in muscle…

Q: The I band of a sarcomere is widest when a muscle is relaxed true or false

A: Muscular system is a type of body system which is involved in contraction and relaxation of muscles…

Q: Can you help me the name of the label of all the number of the muscle model?

A: The muscular system consist of smooth muscles, skeletal muscles and cardiac muscles. The cardiac…

Q: Step by Step procedure of a muscle contraction

A: When a muscle is stimulated, it contracts. Muscle contraction is a mechanical event but it's the…

Q: The region where a motor nerve fiber meets a skeletal muscle fiber is called a/an _____.

A: Muscles are the connective tissue that helps in producing movement in the body. There are three…

Q: In a muscle, muscle fibers are arranged in bundles that are wrapped in a thick layer of connective…

A: Tissue is the next level organization of the cells. There are 4 different types of tissue are…

Q: Figure 5-38 Structure of a fascicle Find and label these muscle fascicle components:

A: Muscular system is a type of body system which comprises of muscles that undergo contraction and…

Q: please correct these answer

A: We can say that When the tension-generating sites present in the muscle fibers are activated, then…

Q: A (low or high frequency) of action potentials results in the fusion of muscle twitches to produce…

A: A muscle twitch is defined as the involuntary contraction of the muscle fibers. Muscle fibers are…

Q: Provide a short description of the observed characteristic of the muscle type in the photo, and…

A: Muscles are responsible for the movement of any part of the body via excitation, responding to a…

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: Which statement or statements describe why depletion of ATP after death leads to rigor mortis?

A: Rigor mortis is the third phase of death. It is one of the unmistakable indications of death,…

Q: The methods of attachment of skeletal muscle to bone by the following aponeurosis ligament. tendon…

A: A dense fibrous connective tissue band with a high tensile strength known as a tendon or sinew…

Q: Your anatomy and physiology course is required for a career in forensics, and one of the short…

A: Forensics is a multidisciplinary field. Physicians, entomologists, molecular biologists, and police…

Q: True/False

A: Every living organisms try to maintain a constant homeostatic internal environmental conditions that…

Q: Smooth muscle is characterized by all of the following except _______. Group of answer choices has…

A: Smooth muscle is a non-striated type of muscle found in the walls of hollow organs and blood…

Q: Graded muscle contractions ________. depend on activation of more and more motor units depend…

A: Muscle cells are made up of two key protein filaments called actin and myosin. These proteins are…

Q: Perimysium surrounds individual muscle cells. O True False

A: The tissues in the human body are differentiated into four main divisions – epithelial tissue,…

Q: Indicate if the following statement is true or false and then provide a justification for your…

A: Similar to skeletal muscle, smooth muscle's main job is to contract. To generate limb mobility,…

Q: Embryonic myoblasts fuse to form single muscle fibers during development; thus skeletal muscle cells…

A: Embryonic stem cell is a pluripotent cell which has the ability to differentiate to all other cell…

Q: Contraction of a whole muscle follows the all-or-none principle. True False

A: The all or none law states that the strength with which a muscle fibre responds to a stimulus is…

Q: Contractile muscle cells cannot be created in culture.     True     False

A: Contractile muscle cell present in body as a skeletal muscle, smooth muscle and heart muscles. The…

Q: Muscle fiber contraction and nerve impulse conduction are similar in that both are response.

A: We can say that Muscle fiber contraction takes place when a muscle fiber is signaled by the brain…

Q: The rising phase of a muscle twitch represents ________. the time of relaxation of the muscle…

A: Muscle twitches are involuntary contractions of the muscle fibers. Nerves control these muscle…

Q: Skeletal muscle cells have the ability to do all of the following EXCEPT _____.     activating…

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

Q: Role of tetanus in normal muscle action

A: We know that Muscles are the important tissues of the body that bring about movement and maintain…

Q: Smooth muscle has actin/myosin, why is it not striated? (consider what striation can provided)

A: Muscles are specialized tissues in the body that have the ability to contract and relax, allowing…

Q: Muscle fibres which characterize skeletal and cardiac muscle (dark-light bands):   muscle budle…

A: Hi, According to the Bartleby's guidelines, we are allowed to answer only the first question in case…

Q: Which of the following muscle proteins isnot intracellular?a. actinb. myosinc. collagen

A: The muscle proteins are the filaments that are present in the muscle cells and are principal…

Q: Correctly order the steps of excitation contraction coupling for a muscle fiber. 1. 2. 3. 4. 5. 6.

A: The human body is a plethora of fascination. There are different organ systems that function in the…

Q: difference between muscle strengthening and bone strengthening

A: Introduction  Bones help us stand up straight and shape our bodies. Muscles are related to bones and…

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.