A&P1 Explain the difference between concentric and eccentric muscle contractions and give an example of an exercise or activity using each.

Q: Identify the major parts of a skeletal muscle fiber anddescribe the functions of each.

A: The muscular framework is an organ framework comprising of skeletal, smooth and cardiovascular…

Q: (a) Describe the structure of a sarcomere and indicate the relationship of the sarcomere to…

A: NOTE:- "As you have posted two parts under one, we will solve the first part for you, to get the…

Q: On a muscle twitch recording, label the latent period, period of contraction, and period of…

A: Muscle cells are specific for contraction. It allows for motions and facilitates bodily processes…

Q: Explain the characteristics of these muscle fibers: slow twitch, fast twitch oxidative and fast…

A: Skeletal muscle fibers are striated tissues. These tissues are under the control of the somatic…

Q: Name the sources of muscle energy and briefly explain each.

A: The muscular system comprises of skeletal muscles, smooth muscles and tendons. This system plays an…

Q: Describe the structural features of a neuromuscular junction andthe role of acetylcholine in…

A: Introduction  Complex organisms such as Multicellular organisms needs control and coordination…

Q: Explain the types of exercise that require more fast-twitchversus slow-twitch muscle fibers.

A: Skeletal muscles are made up of different types of muscle fibers (cylindrical muscle cell) which…

Q: Name the stages of a muscle twitch in order

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

Q: Which type of contraction develops more muscle tension: isotonic or isometric?

A: Muscles are the tissues that can change their length and cause movement of the body parts.

Q: List the three typical stages of a muscle twitch, as seen in amyogram.

A: Myogram is a graphic representation of the phenomena of muscular contractions.

Q: List four causes of muscle fatigue.

A: Muscle fatigue makes the muscles harder to move.

Q: Explain the different causes of muscle fatigue with reference to the various fiber types.

A: The energy for the cycle of muscle contraction in people is provided by ATP (adenosine…

Q: List the four primary signal transduction pathways in skeletal muscle.

A: Signal transduction is defined as the ability of a cell to change behaviour in response to a…

Q: Describe the effect of increasing the load on a skeletal muscle fiberon the velocity of shortening?

A: A skeletal muscle is a type of muscle that remains attached to the skeletal system i.e. bones in the…

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: Explain the movement of ions into, out of, and within the muscle fber after Acetylcholine (ACh)…

A: The sarcolemma is the plasma membrane of the muscle cell that is surrounded by a basement membrane…

Q: Define and describe hypertrophy of skeletal muscles. Whatconditions stimulate it?

A: Hypertrophy is described as a condition where there is an increase in the skeletal muscles. This…

Q: Discuss the 5 steps involved in voluntary muscle contraction.

A: Skeletal muscles are known as the voluntary muscles of the body as they carry out the voluntary body…

Q: Compare the mechanisms involved in the major typesof muscle fatigue.

A: Muscle fatigue is defined as a decrease in maximal force or power production in response to…

Q: On the sustained contraction recording, indicate when the muscle twitches began to combine…

A: The neuron that transmits the stimulus to muscle is known as motor neuron. The motor unit consists…

Q: Explain the role of tetanus in normal muscle action.

A: All the sensory activities are controlled and coordinated by the nervous system. The external…

Q: Explain what the zone of overlap is, and how it contributes to muscle contraction (hint: include…

A: We are answering the first part only. For rest of question pls repost.

Q: Sketch a myogram of a single muscular twitch, and identify the latent period, period of contraction,…

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

Q: Explain how the three forms of adult muscle have various potentials for regeneration after injury.

A: Cell organelles are the building blocks of a cell. They are useful for conducting various cell…

Q: Differentiate muscle hypertrophy from atrophy and give acause of each.

A: Atrophy It is defined as reduce in size of cells, tissues or organs. Muscle wasting It is…

Q: List the phases of a muscle twitch, and describe theevents that occur in each phase.

A: Phases of Muscle twitch:                   When an stimulant action potential travels down through…

Q: Give a part of the body that uses the 2nd class lever system

A: Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: a) Which muscle(s) of these four is (are) the longest at resting length? b) What is the resting…

A: The shape of the force-velocity (F-V) relationship has important implications for various aspects of…

Q: Describe the effects of histamine and NO on smooth muscle activity.

A: Histamine is released in various tissues and maintains immune response, regulates physiological…

Q: post a diagram on how a muscle sarcomere contracts. please make reference to the parts of the…

A: Muscle cells are specific for contraction. It allows for motions and facilitates bodily processes…

Q: Describe the different potentials for regeneration of the three types of adult muscle after injury.

A: Muscle regeneration is a very dynamic process.  This process usually starts during the first of 4–5…

Q: Describe two features of slow-twitch muscle that make it well-adapted for endurance, and explain why…

A: The muscular framework is an organ framework comprising of skeletal, smooth and heart muscles. It…

Q: A decline in a skeletal muscle's ability to maintain a constant level of force or tension after…

A: Skeletal muscles Skeletal muscles are the muscles that cover the bone of the body.

Q: List and describe three changes in muscles that occur duringendurance training and explain how each…

A: Three changes in muscles that occur during endurance training are:   a slower utilization of…

Q: What is muscle fatigue? List the three locations where fatigue can develop.

A: Muscle fatigue is a symptom which decrease the ability of muscles to perform and generate force. It…

Muscle Action

A change in the body or a bodily organ as a result of its functioning is referred to as an action. Muscle action can be defined as the specific movement of a bodily part generated by the contraction of a muscle. The muscle proteins actin and myosin are the important contractile proteins involved in muscle action. Muscle contraction, in addition to movement, serves several other important functions in the body, including posture, heat generation, and joint stability. Muscle contraction maintains posture, which includes standing and sitting.