Your optometrist shines a light in your eye and notices your pupil constricts (becomes smaller) in response to the light. She tells you the iris (the colored part of the eye) is a muscle that adjusts the size of the pupil automatically in response to the amount of light entering the eye. Based on this information, which type of muscle do you think forms the iris? a. skeletal b. cardiac c. smooth d. visual

Q: Which of the following is a responsibility of the body's muscles? (a) moving food through the body…

A: (d) all of the above is correct answer.

Q: Which is a false statement about skeletal muscle structure?a. A myofibril is composed of multiple…

A: Skeletal or Striated muscle- These are present on muscles that are associated with the skeleton.

Q: Predict what might happen to a muscle cell that is extensible but not elastic. What if the reverse…

A: Extensibility and elasticity are the properties of every muscle of the body.  Extensibility is…

Q: Look at the picture. Which sentence about the structure pictured is correct? A. It brings oxygen…

A: We get oxygen by breathing in fresh air, and we remove carbon dioxide from the body by breathing out…

Q: Calcium plays a crucial role in the contraction of skeletal muscles. i. Where is calcium stored…

A: The sliding filament theory was proposed as an explanation for muscle contraction. It is based on…

Q: During evolution, skeletal muscle became adapted to functional de-mands ranging from sudden,…

A: The skeletal muscles of vertebrates are composed of different types of fibers. This includes slow…

Q: The type of muscle cell under voluntary control is the ________. a. smooth muscle b. skeletal muscle…

A: Tissue constitutes a group of cells, arranged in an orderly manner that communicates together, and…

Q: Which is NOT a benefit of the Cecchetti method? A. efficient movement B. musical awareness C.…

A: Ans-(c)over cross turn out The Cecchetti Method -SEPERATE ART OF DANCING of ballet is a style of…

Q: Tendons and ligamentsa. are dense fibrous connective tissue.b. are associated with the bones.c. are…

A: Connective tissue can be defined as the tissue that helps to attach and reinforce to other types of…

Q: Three kinds of muscle cells- cardiac, smooth and skeletal- differences between their anatomy?…

A: Muscular system There are three types of muscles in our body , they are  Skeletal muscle Smooth…

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: Which system of the body depends upon the sodium potassium pump to transmit signals from one place…

A: A Na+/K+ pump is required to maintain the resting membrane potential of the neurons.

Q: Which statement is accurate about an agonist? a. It opposes the function of the prime mover. b. It…

A: The majority of the animals consist of soft tissue called muscles. They are responsible for…

Q: since the age of 10, you have used glasses for myopia. You have heard about the new types of surgery…

A: Myopia is a condition that is characterized by the difficulty in viewing farther objects while the…

Q: Muscular atrophy occurs when: A. A patient lacks the coordination needed to walk normally. B. Muscle…

A: Muscular atrophy refers to the loss of skeletal muscle. The atrophied muscle normally smaller and…

Q: Check all that you know are true about the abductor pollicis longus muscle based on its name.   A.…

A: The human skeleton comprises of about bones and cartilages that serves as the major framework of the…

Q: What are three muscle tissue types found among animals? Explain how each is specialized for…

A: Muscle tissue is a specialized tissue found in animals, which is composed of cells that have the…

Q: Which cell type helps to repair injured muscle fibers?a. ganglion cellsb. myotube cellsc. myoblast…

A: Muscle fibers, or muscle cells, are formed when the developmental myoblasts fuses together, this…

Q: In muscle cells, magnesium ions compete with calcium ions for binding sites on troponin molecules.…

A: Calcium triggers contraction by reaction with regulatory proteins that in the absence of calcium…

Q: Which of these consists of dense parallel arrangements of collagen fibers? a.skeletal muscle tissue…

A: Cells are the smallest functional and structural unit of all organisms. All cells have a cell…

Q: Which of these is not a type of muscle tissue?   a)  skeletal   b)  smooth   c)  rough…

A: The human body is made up of four fundamental tissues which are groups of cells that act together to…

Q: In an examination of a sample of muscle tissue, you notice that thesample consists of striated cells…

A: Step 1 Muscle tissue is a tissue of mostly mesodermal origin where the cells, called myocytes, are…

Q: Worms use a hydrostatic skeleton to generate movement. How do they do this? a. Their bones are…

A: Annelida is a group of segmented worms. They have a long and segmented body. Annelids are…

Q: Explain in your own words: How and why are avian and human muscles different?

A: There are three types of muscles in the human body: skeletal, cardiac, and smooth. Skeletal muscles…

Q: Select the best answer or answers from the choices given: The function of the T tubules in muscle…

A: Muscle contraction can be defined as the process in which the length of the muscles decreases and…

Q: When you “max out” on reps or pushups or something like that, what kind of stimulus is your brain…

A: Exercise builds and strengthens muscles, which can protect the bones from injury, and support and…

Q: Which of the following is NOT a function of skeletal muscles? O move fluid substances through hollow…

A: Skeletal muscle is the striated, voluntary muscle whose activity is regulated by the somatic nervous…

Q: Which of the following characteristics does not apply to skeletal muscle tissue?   a.  striated…

A: Skeletal muscle tissues are those that are closely attached to skeletal bones. A typical example of…

Q: What is represented on the image above? (A) A cross-section of a cardiac muscle B A longitudinal…

A: Introduction Muscles are soft tissues, Many, stretchy fibers make up our muscles, muscle is a group…

Q: Match the appropriate definition to the appropriate vocabulary word. The muscle that contracts and…

A: The muscle that contracts and causes desired action -- Agonist The muscle that assist the primer…

Q: What are tendons and ligaments composed of?  A. Dense connective tissue  B. Liquid connective…

A: INTRODUCTION Tendons and ligaments are composed of dense connective tissue.Blood and lymph are made…

Q: Under a light microscope, would you see the muscle fibers get narrower, or the striations get…

A: Muscle fibers are cylindrical in shape and they consists of more than one nucleus. They are composed…

Q: Which is true for striated muscles? a) may have spontaneous activity b) is not under the control…

A: Muscle are group of cells which perfom a specific function. They are responsible for movement. They…

Q: Describe how you bend your arm, starting with action potentials and ending with the contraction of a…

A: The bending of the arm is controlled by the action potential that generates and travels along the…

Q: Which type of muscle do you have in your digestive system? A) Cardiac MuscleB) Striated MuscleC)…

A: Digestion involves the breakdown of food into smaller components so that they can be easily absorbed…

Q: Skeletal, smooth, and cardiac muscle are similar in that they all _____.   A are divided into motor…

A: SKELETAL MUSCLES SMOOTH MUSCLES CARDIAC MUSCLES They are striated muscles. They are non-striated…

Q: Identify the tissue in this micrograph. a. skeletal muscle b. smooth muscle c. cardiac muscle

A: There are different types of tissues present in the body that mediates specific function. Skeletal,…

Q: Striations are found in the cytoplasm of which type(s) of muscle tissue? Select all that apply.…

A: Muscle tissue- This tissue is a crucial part of any movement that the body comprises via…

Q: patient spends 6 weeks on bedrest. What happens to the muscles, tendons, and bones in her legs…

A: Skeletal muscles help people move their limbs. Muscles are attached to the bones with the help of…

Q: Whilst fishing, you catch an animal with a long, cylindrical body. You take it back to the lab for…

A: The diverse kind of organisms are present on the earth. A large kind of organisms are present. The…

Q: Compare and contrast human muscles with those of a frog, bird, and snake. Explain the differences…

A: Both frogs and humans have intricate muscular systems, but they are built in accordance to need of…

Q: Which of the following is true?       Tendons join bone to bone       Tendons join muscle to…

A:

Q: Which of the following statements about skeletal muscle is CORRECT? Select one: a. An increase in…

A: Muscle tissue is made up of cells that contract (become shorter) when stimulated by the nervous…

Q: Outline the role of calcium ions on muscle contraction during a biceps curl. In your answer: A)…

A: The muscle cells possess electrical excitability and contraction properties. Their contraction…

Q: Which of the following describes cardiac muscle tissue? Select all that apply.   a striated b…

A: Introduction Cardiac muscles, these types of muscle are found only in the walls of the heart. It is…

Q: Straps of dense, regular connective tissue______ . a. connect muscles to bones c. underlie the skin…

A: Introduction  In our body to maintain the proper shape, structure, and integrity of the body,…

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.