statements. 1. Muscle twitch is caused by ____ 2. The 3 phases of muscle twitch are ____ 3. Fast twitch muscle fibers differ from slow twitch fibers because ____ 4. The muscle can't be stimulated to contract during ____ period. 5. Myogram shows ____
Q: Column I Column II Ca binds to calmodulin 1. Binds calcium in skeletal muscle cells Ca binds to…
A: Muscle tissue is a well-vascularized soft tissue present in the muscles of animal body. Muscle…
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: Ans Column I Column II Ca binds to calmodulin 1. Binds calcium in skeletal muscle cells Ca binds to…
A: Muscles are soft tissues present in most animals. They contain protein filaments called actin and…
Q: Which of the following cells have multiple processes extending from the soma? Multiple Choice…
A: Huamns have different cells and cell type which make different tissues .
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: How is muscle contraction stopped? Which of the following is/are correct? A) The brain stops…
A: The process of muscle contraction is a sequence of events that are responsible for the contraction…
Q: Why does a person with muscles that have a higher percentage of slow fibers have greater endurance…
A: In humans muscles constitute about 40 to 50 percent of the total body weight. These muscles are…
Q: Underline the error in each of the following statements and provide the correction. ii. Smooth…
A: Introduction Smooth muscles are involuntary muscles i.e. these muscles are not under conscious…
Q: Hello. Why does a person with muscles that have a higher percentage of slow fibers have greater…
A: Muscle is a soft tissue found in most animals. Muscle cells contain protein filaments of actin and…
Q: Ans Column I Column II Ca binds to calmodulin 1. Elastic fibers that anchor thick filanments in…
A: Muscle is a soft tissue found in animals which consists of actin and myosin that slides over each…
Q: How can weight lifters have such enormous muscles, while long-distance runners have lean muscles?
A: Weightlifting and distance running being two different sports need a different type of body power.…
Q: Progressive fluctuating muscle weakness, often starting in the favial or eye muscles are signs and…
A: The correct answer is option (c) myasthenia gravis. Myasthenia gravis is an autoimmune disease that…
Q: Column I Column II Ca binds to calmodulin 1. Elastic fibers that anchor thick…
A: COLUMN-I COLUMN-II 1 Z line Elastic fibers that anchor thick filaments in place 2 actin and…
Q: a. Explain why a cast placed around a fracturedleg in which extensive tissue damage hasoccurred…
A: Casts are supportive devices used to hold the injured bone intact in a location while the healing…
Q: Ans Column I Column II Ca binds to calmodulin Binds calcium in skeletal muscle cells 1. Ca binds to…
A: Muscle is a soft tissue found in animals which consists of actin and myosin that slides over each…
Q: What would be affected if the globular head of myosin was misshapen? a) The ability to bind to…
A: Myosin is a protein, but specifically, a motor protein and a fibrous globulin of muscle that can…
Q: Label the visible parts in the ff. images 1.1 Skeletal muscle 1.2 Smooth muscle 1.3 Cardiac muscle
A: The skeletal system working is carried out by the muscles. There are three types of muscles in the…
Q: Muscle contraction incorrect order Calcium allows myosin to bind to the actin. A message travels…
A: Note: the question is attempted to write the correct order of muscle contraction. Muscle is the…
Q: ___________ steroids are designed to promote musclegrowth but have harmful side effects.
A: The muscular framework is an organ framework comprising of skeletal, smooth and cardiovascular…
Q: Fill in the blank: The P wave corresponds to depolarization of the muscle fibers of the…
A: A human heart is 4 chambered mascular organ. Its present inside chest and its similar to a fist in…
Q: Column I Column II Ca binds to calmodulin 1. Elastic fibers that anchor thick filaments in place Ca…
A: The muscular system is a system of muscles of all kinds- skeletal, smooth and cardiac. These muscles…
Q: Which of the following best describes the response of the circular muscle layer to distention of the…
A: E) Relaxation above and contraction below the point of distention
Q: Describe the results of the muscle biopsy.
A: Muscle biopsy is the procedure of removal of cells or tissues from a particular area of the human…
Q: 3- a muscle contracts more forcefully if: a- its motor units contracted simultaneously. b- the…
A: Muscle contraction is regulated through the the function of alpha motor neuron/lower motor neurone…
Q: Arrange the following
A: The sliding filament mechanism describes the mechanism of contraction of skeletal muscles.
Q: Provide one difference and one similarity in the process of contraction of smooth, skeletal, and…
A: Muscles are divided into three categories: cardiac, smooth, and skeletal. Cardiac muscle is found in…
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: Lactic acid contributes to muscle fatigue because it affects: a) the enzyme that activates myosin.…
A: Glycogen is the stored form of glucose found in muscles , which is used to synthesize ATP( energy)…
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: Describe the following terms: Platysma Muscle Origin Synergist Abductor
A: 1. Platysma. The muscle originates from the fascia of the infraclavicular and supraclavicular area.…
Q: Is there a smooth muscle in this photo? Yes or No?
A: Smooth muscles are a type of muscular tissue, which play very important role in contraction.They…
Q: answer all the questions correctly and in details. 1. CREATE DIAGRAMS to outline the muscle…
A: To get the remaining questions to be solved, please repost the complete question and mention the…
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: What is the cause of the fused/complete tetanus (4) in the figure below? * Average tension…
A: ANSWER;- At higher stimulus frequencies, there is no relaxation at all between stimuli. Explain;-…
Q: The disease poliomyelitis (po′le-o-mi′˘e-li′tis) destroys motor neurons, causingloss of muscle…
A: Poliomyelitis is caused by a virus that may cause paralysis in the person. Poliomyelitis can be…
Q: Assuming the ultrasound beam strikes the muscle layer at 90◦ , how wide will the fat muscle boundary…
A: The ultrasound technique is used to measure thickness of fats between skin and muscles.Transducer…
Q: Fill in the blank: The T wave corresponds to repolarization of the muscle fibers of the…
A: Step 1 Repolarization takes place when the membrane potential returns to a negative value.…
Q: 7. Describe the process of muscle contraction from nerve impulse (start) to relaxation (end).
A: Processes of muscle contraction and relaxation.
Q: Now in your own words, EXPLAIN (1) howa neural impulse is transferred to a muscle cell this is the…
A: Neural impulse or a nerve impulse refers to a signal that is transferred along the nerve fiber. It…
Q: Maximum contraction strength is achieved when, prior to contraction, the H zone contains no myosin…
A: Skeletal muscle fiber has alternatively repeating units having alternate light and dark bands known…
Q: Clonus :-a- is a sign of decreased supraspinal facilitationb- initiated by briefly stretching the…
A: The nervous system is the system of nerves that are spread in every part of the human body. These…
Q: Of the below, could you please assist with what applies to Muscle tone? is a condition in…
A: Muscle tone - Muscle tone is a kind of continuous or partial contraction of muscles. Muscle tone…
Q: A 45 years old old man visit physician with an autoimmune disease characterized by weakness and…
A: Autoimmune diseases occur, when the immune system fails to recognise self molecules and starts…
Q: Matching between Column I and corresponding definition or function in column II ( please answer all…
A: Muscles are soft tissues present in most of the animals. They play an important role in the motion…
Q: Choose the incorrect statement about skeletal muscle. Question 3 options: Skeletal muscle is…
A: Skeletal muscles account for 30 to 40% of total body mass. They are the muscles that connect to your…
Q: Can you match the sacromere anatomy with the proper answer from the list below the table graph?…
A: A typical myofibril have striated appearance due to he presence of light bands and dark bands. The…
Q: Discuss the similarities and differences by which Ca2+ activity is involved in initiating muscle…
A: "Muscles" perform various functions as movement, which is the fundamental purpose of muscles is to…
Fill in the blanks to complete the
statements.
1. Muscle twitch is caused by ____
2. The 3 phases of muscle twitch are ____
3. Fast twitch muscle fibers differ from slow twitch fibers because ____
4. The muscle can't be stimulated to contract during ____ period.
5. Myogram shows ____
Trending now
This is a popular solution!
Step by step
Solved in 2 steps
- Column I Column II Ca binds to calmodulin 1. Elastic fibers that anchor thick filaments in place Ca binds to troponin 2. Occurs in smooth muscles only Oxidative type I muscle fibers 3. Is the primary source of Ca that drives muscle contractionplease fill in the blanks: 25. The combination of alternating dark A bands and light _______________ bands gives a muscle fiber its striated appearance 27. neurotransmitters are stored in ______________, which are located within synaptic end bulbs 30. cardiac muscle tissue has a long _____________ that allows time for the chambers of the heart to relax and fill with blood between beats 31. smooth muscle tissue contains thick filaments, thin filaments, and ____________ filaments 34. the minimum stimulus required for skeletal muscle contraction is called a ____________ stimulusRelate these conditions to the normal contraction of muscle fibers. Identify the ultimate effect on the ultrastructure and physiology of muscle fibers.1. Muscle hypertrophy2. Muscle atrophy3. Muscle hyperplasia4. Rigor mortis5. Muscular dystrophy
- Watch the video about skeletal muscle structure then answer the questions below. https://youtu.be/XoP1diaXVCI 1. What is stored in the sarcoplasmic reticulum? 2. What are the names of the “junction points” between sarcomeres? 3. What is the “double strand of pearls” described in the video? 4. What is the actual name for the "accessory proteins" that block the myosin-binding sites? 5) What gives a skeletal muscle fiber its striated appearance?Ans Column I Column II Ca binds to calmodulin 1. Elastic fibers that anchor thick filanments in place Ca binds to troponin 2. Occurs in smooth muscles only Oxidative type I muscle fibers 3. Is the primary source of Ca that drives muscle contraction Titin 4. Is a dense connective tissue that surrounds the entire muscle H zone 5. Anchors thin filaments together Z line 6. Have high concentration of mitochondria Sarcomere 7. The region of thick filaments that has no overlap with thin filaments Actin and myosin 8. Is the functional unit of skeletal muscle Epimysium 9. Occurs in skeletal and cardiac muscles Sarcoplasmic reticulum 10. Generate the mechanical force of a muscle through crossbridge cyclingAns Column I Column II Ca binds to calmodulin 1. Elastic fibers that anchor thick filaments in place Ca binds to troponin 2. Occurs in smooth muscles only Oxidative type I muscle fibers 3. Is the primary source of Ca that drives muscle contraction Titin 4. Is a dense connective tissue that surrounds the entire muscle H zone 5. Anchors thin filaments together Z line 6. Have high concentration of mitochondria Sarcomere 7. The region of thick filaments that has no overlap with thin filaments Actin and myosin 8. Is the functional unit of skeletal muscle Epimysium 9. Occurs in skeletal and cardiac muscles Sarcoplasmic reticulum 10. Generate the mechanical force of a muscle through crossbridge cycling Matching between Column I and corresponding definition or function in column II ?
- Part B Matching Choose the appropriate words or phrases from column "B" that match the terms in column "A." Words or phrases in column "B" may only be used once. Column B Column A 13. Elasticity A. Every one fires B. Binds muscle fibres together 14. Neuromuscular junction C. Muscle's ability to stretch 15. Myosin D. Attaches to troponin 16. Perimysium E. Has a "head and tail" 17. Neurotransmitter Sarcolemma F. Acetylcholine 18. G. muscle membrane 19. Calcium H. Where nerve contacts muscle 20. All-or-none-principleIndicate if the statements are TRUE or FALSE. ________ 11. Actin is found only in the striated fibers of cardiac and skeletal muscles.________ 12. Slow twitch msucle fibers are more resistant to fatigue than other muscle fiber types.________ 13. A sarcomere is the region of a myofibril that lies between two consecutive Z lines.________ 14. An action potential in a muscle fiber is initiated by stimulation across the neuromuscular junction.________ 15. A muscle triad consists of sarcoplasmic reticulum, a T tubule, and a terminal cisternum.Please answer all of this following questions in your own words, thank you. Q1: Which muscles form the quadriceps? How do they function together? Q2: studied the steps of skeletal muscle contraction (sliding filament mechanism). Briefly outline the steps of the sliding filament model of muscle contraction. just mention what is happening with each of the "filaments." Q3: What would be the effect on the muscle if acetylcholinesterase was not present? (8)
- 1. muscle contraction Skeletal muscle contraction is initiated by _______________________ motor neurons. 2.Ligand gated receptors in the synaptic cleft bind ____________________________ before opening. 3._________________ is the structure that allows an action potential to spread from the motor end plate to the sarcoplasmic reticulum.Watch the video about skeletal muscle structure then answer the questions below. https://youtu.be/XoP1diaXVCI 1. What is the actual name for the "accessory proteins" that block the myosin-binding sites? 2. What is the “double strand of pearls” described in the video?H b. The smooth muscles and glands O c. Skeletal, smooth, and cardiac muscle O d. The skeletal muscles and the parts of the nervous system that control them QUESTION 8 How does the nervous system grade the force of muscle contraction? O a. Only by recruiting additional motor units O b. Only by varying the firing rate of the motor neurons O c. By varying the firing rate of the motor neurons and by recruiting additional motor units O d. By using more motor neuron pools esc QUESTION 9 Which is the first step in the contraction phase of the excitation-contraction coupling? a. Action potential occurs at the neuromuscular junction. Ob.Ca2+ binds to troponin. Oc. Nicotinic receptor channels in the sarcolemma open. O d. Myosin heads pivot. Click Save and Submit to save and submit. Click Save All Answers to save all answers. Type here to search 1 ? f2 (8) # * M f4 LA O 101 4 E f5 ,C n % 5 f6 10 6 17 7 &