To make a muscle contract more strongly,the nervous system can activate more motorunits. This process is calleda. recruitment.b. summation.c. incomplete tetanus.d. twitch.e. concentric contraction

Q: The mechanism of muscle contraction is best explained by the sliding filament model. According to…

A: Many different forms of cell motions are caused by actin filaments, which are often linked to…

Q: The cross bridges of the sarcomere in skeletal muscle are made up of                 A. myelin.…

A: Introduction:-  Muscles are delicate tissue present in most animals . These contain filaments like…

Q: Why might multiple, small motor units be advantageous over a single large motor unit?   A. They…

A: Motor units participate in regulation of movement of muscle fibers.

Q: Which of the following effects result(s) from aging on the muscular system? a. Muscle mass declines.…

A: The muscular system is defined as an organ system composed of skeletal muscles, smooth muscles, and…

Q: Single-unit smooth muscle cells can stimulate each other because they have:|- a. pacemakers. b.…

A: Smooth muscles are involuntary in nature and non-striated muscle cell which lines the inner side of…

Q: Which of the following statements about movement and locomotion isfalse?a. Terrestrial animals and…

A: The process called movement is the temporary or permanent displacement of the part of the body of a…

Q: What property do all muscle tissues have in common?a. composed of collagen and elastin filamentsb.…

A: Muscles are required in breathing, talking, running, walking, and anybody movement. Actin and…

Q: Which region of the sarcomere does not change length between muscle relaxation and muscle…

A: Muscle is a kind of tissue as it is made up of group of cells. It is one of the four kind of primary…

Q: Peristalsis is the wavelike, constant, and rhythmic alternating contractions and relaxations of…

A: Peristalsis is the rhythmic movement of the intestinal muscles which results in the movement of food…

Q: Which of the following statements about the connective sheath of skeletal muscle is false? a. the…

A: Muscle system is one of body system  which concerned with the contraction and relaxation of muscle…

Q: Movement of a limb in two directions requires a pair of muscles becausea. a single muscle can only…

A: Bones are the rigid, living tissue that forms the main component of the skeletal system. The bones,…

Q: Which of these events occurs during the lag (latent) phase of musclecontraction?a. cross-bridge…

A: Muscle is a soft tissue found in most animals. Muscle cells contain protein filaments of myosin and…

Q: The type of muscle used to move the leg when walking isa. skeletal.b. cardiac.c. smooth.d. All of…

A: A group of cells having a similar structure, function, and origin is called tissue. Muscles are the…

Q: Botulism toxin inhibits the release of acetylcholine at the neuromuscular junctions. What effect…

A: Neurons are the basic structural and functional unit of the nervous system. Neurons have three…

Q: Nervous stimulation of musclesa. occurs at a neuromuscular junction.b. results in an action…

A: Answer is d.)  All of these Correct.

Q: Which of these increases the least as a result of muscle hypertrophy?a. number of sarcomeres d.…

A: Muscle hypertrophy means increase in the size and strength of the muscles. This in turn results in…

Q: The biggest force of contraction can be produced by: Select one: a. SO fibers b. FOG fibers c. FG…

A: Invertebrates, there are two types of skeletal muscles: red and white muscles. Red muscles are red…

Q: To demonstrate muscle fatigue, a student held an 8 lb dumbbell in her hand and abducted her arm…

A: Ans - the correct answer for the above question is- A) Different motor units were contracting while…

Q: The release of which of the following minerals from muscle cell storage sites stimulates muscle…

A: Sarcoma muscles store calcium in sarcoplasmic reticulum. It gets released when a muscle cell or…

Q: . Before a muscle fiber can contract, ATPmust bind toa. a Z disc.b. the myosin head.c.…

A: Muscle contraction is the process of increase in the tension of muscle fibers or decrease in the…

Q: Muscle that has a striped appearance is described as being a. elastic b. nonstriated c. excitable d.…

A: Muscle refers to a soft tissue found in the majority of animals. The cells of the muscle comprise…

Q: Which of the following is not a role of the muscular system inhomeostasis in the body?a. produce…

A: The muscular and skeletal system work together to allow movements in the body for the maintenance of…

Q: The function of ATP during muscle contraction is toa. cause an allosteric change in myosin so it…

A: ATP(adenosine triphosphate) causes an allosteric change on myosin so it detaches from actin and…

Q: Muscle tone is: a. the result of voluntary shortening of the muscle. b. the result of a small amount…

A: Muscle tone is define as the contraction of muscle at rest Conditions

Q: When muscle fibers are stimulated so frequently they do not have an opportunity to relax, they are…

A: There are two types of skeletal muscle fibers, fast-twitch and slow-twitch, and they each have…

Q: Which of the following does NOT contribute to muscle fatigue? A. K+ accumulation B. ADP and…

A: Introduction Muscle fatigue is a condition in which muscles loses the ability to perform overtime.…

Q: Muscle Fiber Recruitment As intensity increases, in which order are fibers recruited? a. type llx,…

A: We can say that Human skeletal muscle is composed of a different collection of muscle fiber types.…

Q: What happens in a muscle twitch? a. Myosin grabs a thick myofilament. b. Sarcomeres shorten during…

A: Muscle twitches can occur for heaps of reasons like stress, an excess of caffeine, a horrible eating…

Q: This muscle type is described as interconnected, connecting as one. a. skeletal O b. visceral O c.…

A: Muscles are delicate tissues. Numerous stretchy fibers make up your muscles. Every human have more…

Q: Which of the following is the site of calcium ion storage within muscles? a. T tubules b.…

A: Muscles are the body tissues that are principally accountable for causing movement in the body.…

Q: if, in a laboratory, a skeletal muscle cell receives a single stimulus to contract, it produces a…

A: As per our honor code, we are authorized to answer only one question at a moment. So, we are…

Q: Which of the following is arranged in order from smallest tolargest?a. Motor unit < sarcomere…

A: When a nerve impulse travel to the muscle contraction that is an action potential causes the muscles…

Q: The series-elastic component of muscle contraction is responsible for a.increased muscle shortening…

A: Muscle is a delicate tissue found in many creatures, and is one of the four fundamental creature…

Q: The intrafusal fibers OA. are of two types, fast twitch and slow twitch. OB. increase in number with…

A: Muscle is a specialized tissue of mesodermal origin. About 40-50% of the bodyweight of a human adult…

Q: contraction occurs as the length of the muscle increases. O a. Concentric O b. Eccentric O c. Static…

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