Understanding Muscle Tissue: Characteristics and Functions

My Classes MULTIPLE CHOICE QUESTION Which of the following best describes cardiac muscle tissue? branching, not striated, voluntary Branching, involuntary, striated Non-branching, striated, involuntary Non-branching, not striated, and involuntary Rewagh Submit !!

Write the names of the three types of muscle tissue in the appropriate blanks

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In which type(s) of muscle cells does each cell have its own neuromuscular junction?                                 skeletal only                                 unitary smooth and skeletal                                 skeletal and cardiac       2. The follow is NOT true of CARDIAC muscle fibers:        - connected by gap junctions       -  include pacemaker cells that can produce produce action potentials at regular intervals without innervation        - without calcium cross bridge cycles will not occur and fibers will not shorten        - each cell in a motor unit has a neuromuscular junction with the same motor neuron                                 actin and myosin filaments are arranged in sarcomeres                                 produce greater force when stretched than at resting length   3. Match the following:   -Skeletal muscle   -Cardiac muscle   -Smooth muscle Can maintain prolonged isometric contractions with very little energy Striated muscle fibers with gap…

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Ans 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 ?

1. Compare the excitation-contraction coupling in the three types of muscle. Skeletal muscle Smooth muscle Cardiac muscle Sarcomere/myofibril Thick filament Thin filament Striations I tubules Sarcoplasmic reticulum

Syllabus BigBlueButton Collaborations What are the characteristics of cardiac muscle? A. Cells are short and branching. B. Cells have multiple nuclei at the periphery of the cell. C. They are composed of thick and thin filaments. E. All of the above D. The functional contractile unit is the sarcoplasm Chat My Media Student Feedback on Instruction Zoom McGraw-Hill Connect MyLab and Mastering Honorlock Announcements Qwickly Tools Library Modules Quizzes ○ A & C ○ A,B &C O B,C &D ○ A & B ◄ Previous No new data to

Name:. Year and Section: F. Muscular Tissues Tissue Type Source EXERCISE NO. 4 Tissue Type Source Tissues skeletal smooth 69 Date Submitted: Group No.:. Tissue Type cardiac Source

In which type of muscle fibers is ATP synthesized aerobically in mitochondria?                                 smooth                                 cardiac                                 skeletal                                 all of the above 2. In which types of muscle fibers are action potentials transmitted from one cell to the next through gap junctions?                                 unitary smooth and cardiac                                 cardiac and skeletal                                 skeletal and smooth   3. All types of muscle have actin and myosin, but not all types have sarcomeres."  True    False

3. [Essay] Do you know "IceBucket challenge"? The purpose of this public welfare activity is to help the patients with amyotrophic lateral sclerosis. The main symptom of amyotrophic lateral sclerosis is that the muscles of the patients gradually shrink until they die. However, not all muscles of the patients with amyotrophic lateral sclerosis are atrophic. Combined with the knowledge of muscle tissue we have learned, please talk about the types of muscle tissue, and what are the differences in the structure and function of these muscle tissues? What type of muscle atrophy in patients with amyotrophic lateral sclerosis?

An autorhythmic muscle type containing mononucleated and striated muscle fibers. cardiac muscle smooth muscle skeletal muscle 2. This type of muscle is found in the lining of the stomach as well as the walls of arteries. cardiac muscle skeletal muscle smooth muscle 3. A muscle type that functions to transport substances through hollow viscera (organs). skeletal muscle cardiac muscle smooth muscle 4. Voluntary, striated and multinucleated muscle. skeletal muscle cardiac muscle smooth muscle

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11. Electrical impulses in muscle fibers are called 12. Groups of muscle fibers are that are surrounded by a type o connective tissue. 13. The is where a neuron synapses with a muscle fiber. ions: On

POS Skeletal muscle cells differ from cardiac muscle cells in that O skeletal muscle cells are spindle shaped and possess one centrally located nucleus O skeletal muscle cells consist of cylindrical, non branched cells wilth multiple nuclei O skeletal muscle cells are branched and generally possess one nucleus O skeletal muscle cells possess cell junctions called intercalated disCS 33 34 35 36 37 38

T/F question Skeletal muscle tissue is under involuntary neurological control. Neurons are the largest cells in the body. A synapse is a component of cardiac muscle cells. Homeostasis involves a negative feedback process. The skull, backbone, and rib cage constitute the appendicular skeleton.

2. Compare excitation-contraction coupling and relaxation in cardiac and skeletal muscles. Include similarities and differences. How is ECC  similar in the two types of muscles (the roles of calcium and ATP, ADP+P for example  mention  action potential generation, sarcoplasmic reticulum, calcium, troponin, tropomyosin, myosin, actin, crossbridge formation, Calcium ATPase (CaATPase), Sodium-Calcium-Exchanger (NCX), t-tubules.



Compared to skeletal muscle, smooth muscle None of the choices are correct Has equal thick and thin filaments Uses calcium from the extracellular fluid only Has the same contractile and regulatory proteins. Has much more thick filaments than thin filaments

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Which of the following is true of cardiac muscle? о а. Cardiac cells are electrically connected via intercalated disks o b. All of these statements are true It is the only type of tissue that produces spontaneous action potentials o d. It is made of multinucleate cells It lacks sarcoplasmic reticulum Ос. Ое.

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One way to keep the body fit and healthy is by means of regular exercise. Im pretty sure we always want to stay healthy. A worthwhile activity we can do during this quarantine period is to be engaged in practical physical activities that can stretch our muscles.  We do not need to go to gyms to exercise. We can do them at home. Now, list down sample exercise routines that can be done at home and identify muscles involved in such body movements.

Differentiation Table:   Visceral Muscle Cardiac Muscle Skeletal Muscle Voluntary or Involuntary       Striated or Non-striated       Location       Controller       Which of the three types of muscle appears to have the most parallel fibers? Which of the three types of muscle has the most irregular fibers? Which of the muscle types appears to have the largest nuclei? Which of the types of muscle appears to consists of fibers that connect side to side like the off ramp of an interstate highways?

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Muscle versus bone Venn diagram Drag each word or phrase to the part of the Venn diagram to which it is associated; if a word or phrase is associated with both muscular and skeletal systems, place it in the overlapping parts of the circles. High use of ATP Bone cells Helps maintain body temperature Contains blood vessels Includes connective tissue Calcium reservoir Produces blood cells Receives signals from nervous system One function is movement Sliding filament model Myofibrils Vertebrate muscular system Vertebrate skeletal system

Work 6. Comparison of physiological properties of different types of muscles. TABLE 4. SKELETAL MUSCLES SMOOTH MUSCLES RESTING POTENTIAL (LEVEL, IN MV) DURATION OF ACTION POTENTIAL CALCIUM-BINDING PROTEINS DURATION OF THE CYCLE CONTRACTION-RELAXATION AYTOMATICITY NTERCELLULAR CONTACTS SENSITIVITY TO BIOLOGICALLY ACTIVE SUBSTANCES

A&P1 Muscle Tissue Lab Continued.... Label the images below: ARRA APAR Leese Syste Disse of heeee Which bands get smaller during a contraction? Which band stays the same during a contraction? Which filaments form the I band?. What is connected to the M line? What does Titin do? The H band? BARA

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