Sarcomere TEM 21,600x Courtesy Denah Appelt and Clara Franzini-Armstrong 2.

Q: Is the biceps brachii an extensor or a flexor?

A: A large two-headed muscle that lies on the upper arm's front between the shoulder and elbow is the…

Q: What prevents cross-bridges from attaching to sites on the thinfilaments in a resting skeletal…

A: Muscles are the tissues able to contract in response to stimuli.

Q: When a sarcomere shortens, which event is associated with this?

A: Introduction: The muscle contraction occurs in the following steps: The head of the myosin…

Q: Light less dense area of sarcomere that contains reminder of thin filaments but no thick filaments…

A: SARCOMERE It is the complicated unit of striated muscle tissue. It is the repeating unit between two…

Q: Why do tetanic contractions indicate the frequency of the nerve impulses causing contractions?

A: A muscle contraction can be categorized as twitch, summation, or tetanic contraction. A twitch…

Q: At what length will a sarcomere be able to generate the greatest amount of tension? Why?

A: The basic contractile unit of the muscle fibre is called a sarcomere. It consists of two filaments…

Q: Define sarcomere

A: Sarcomere can be defined as the unit of contraction in the muscle fibres. It consists of the actin…

Q: Why is Excitation Contraction Coupling important?

A: Muscles contraction  The contraction of muscle activated by the tension generating sites present in…

Q: Define suspensory ligament

A: The suspensory ligament is used to give support to the body parts mainly for the internal organs.…

Q: Depolarization of the sarcolemma means

A: A nerve impulse travels to the neuromuscular junction on a muscle cell. Acetylcholine…

Q: Define sarcoplasm

A: The skeletal muscles help in regulating body temperature and release the heat from the muscles.…

Q: Explain why it is important for cardiac muscle to havelonger-lasting contractions than skeletal…

A: The muscular system consists of three types of muscle-smooth muscle, cardiac muscle and skeletal…

Q: Define sarcolemma

A: In anatomy, the term ‘sarcolemma’ which is also known as the myolemma, is described as the…

Q: What effect does a pacemaker potential have on a smooth musclecell?

A: In human physiology, pacemaker potential can be described as the positive increase in voltage in the…

Q: Given these events:(1) The sarcoplasmic reticulum releases Ca2+.(2) The sarcoplasmic reticulum takes…

A: The muscular system is the organ system comprising the skeletal, cardiac, and smooth muscles,…

Q: Polio is a muscle-paralyzing disease caused by infection with poliovirus. This virus, however, never…

A: Ans: Polio virus: It is the causative agent of polio a paralytic disease. It belongs to Enterovirus…

Q: which is the correct sequence that describes the excitation and contraction of a skeletal muscle…

A: Excitation and contraction of skeletal muscle fiber : the term excitation - contraction coupling was…

Q: Draw a relaxed and contracted sarcomere and label the parts of the Z-discs, thick and thin…

A: The tightening, decreasing, or lengthening of muscles during an activity is known as muscular…

Q: The conduction velocities for the Achille's tendon reflex and the Patellar tendon reflex should be…

A: Reflex arc is the process of reflex formation. It consists of a parallel (or sensory) sensor, one or…

Q: Z7

A: We know that Muscles are the soft tissue found in our body. Muscles work to create strength and…

Q: I band H zone A band Reset 000000 Identify each of the following regions of a sarcomere. సాయి కోసం…

A: Sarcomere is the constructional unit of muscle fibre that contain two types of filaments that are-…

Q: What is happening inside the sarcomere during the contraction period?

A: We know that The neurological system controls the muscular systems of vertebrates, however, certain…

Q: Describe the structural relationships among the following in aresting skeletal muscle fiber: A band,…

A: A sarcomere is defined as the segment between two neighbouring Z - lines . In electron micrographs…

Q: 5. Diagram the structure and organization of the actin and myosin filaments including the myosin…

A: Note-  As we are allowed to do only one question at a time so I will provide answer to one question…

Q: Write the name of the sarcomere structure defined. A structure may be used more than once, and a…

A: A sarcomere is the functional unit of striated muscle. This means it is the most fundamental unit…

Q: At what frequency of stimulation did tetanic contraction occur?

A: The muscles are stimulated by the nerve impulses causing the contraction of the muscles. The muscle…

Q: Can cardiac muscle exhibit (normally or under experimental conditions) summation or complete tetanus…

A: The cardiovascular system is an organ system which distributes blood to all the parts of the body…

Q: Why is the increase in velocity inversely proportional to the sarcomere length?

A: A sarcomere is the basic contractile unit of muscle fiber. Each sarcomere is composed of two main…