Listen Which Following Explained for Students (Easy Guide)
Students often encounter this when studying fundamental concepts.
What This Question Is About
This question relates to listen which following and requires a structured academic response.
How to Approach This Question
Structure your response with introduction, analysis, and conclusion.
Key Explanation
This topic involves listen which following. A strong answer should include explanation, application, and examples.
Original Question
Listen Which of the following marks the boundaries of a sarcomere? Question 21 options: I bands H bands Z discs M lines A bands Question 22 (1 point) Listen As you are lifting a box, someone places extra weight on top of it. For your muscle to continue contracting and lifting the box, the muscle must_________. Question 22 options: recruit more muscle fibers lower its threshold reduce its wave summation shift from isometric to isotonic contraction shift from slow-twitch to fast-twitch mode Question 23 (1 point) Listen Which of the following is true concerning isotonic concentric contraction? Question 23 options: The muscle shortens but tension remains constant. The muscle lengthens but tension remains constant. The muscle tenses and shortens. The muscle tenses but length remains unchanged. The muscle lengthens and tension declines. Question 24 (1 point) Listen Which of the following would be caused by a contraction of smooth muscle? Question 24 options: Goose bumps Blood leaving the left ventricle of the heart Elevating the eyebrows Blinking the eyelids Deep inspiration Question 25 (1 point) Listen Increased calcium ion permeability of the presynaptic terminal cell membrane is caused by_________. Question 25 options: an action potential an increased concentration of calcium ions sodium ions acetylcholine acetylcholinesterase Question 26 (1 point) Listen Which of the following is a property of collagen? Question 26 options: Contractility Excitability Elasticity Expendability Impermeability Question 27 (1 point) Listen Which of the following best describes the resting membrane potential (RMP)? Question 27 options: The intracellular environment is negatively charged. The intracellular environment has more positively charged sodium. The extracellular environment is negatively charged. It has a voltage of about +75 mV. It is dependent upon the absorption of potassium ions by the muscle fiber. Question 28 (1 point) Listen If one nerve stimulus arrives at a muscle fiber so soon that the fiber has only partially relaxed from the previous twitch, the most likely result will be_________. Question 28 options: fatigue spasm incomplete tetanus complete tetanus flaccid paralysis Question 29 (1 point) Listen Where would you expect to find numerous gap junctions in muscular tissue? Question 29 options: The sarcoplasmic reticulum of skeletal muscle The A bands of skeletal and cardiac muscle The sarcolemma of skeletal muscle The intercalated discs of cardiac muscle Multiunit smooth muscle Question 30 (1 point) Listen A deficiency of acetylcholine receptors leads to muscle paralysis in myasthenia gravis. Question 30 options: True False Question 31 (1 point) Listen In order for muscle to continue contracting during anaerobic fermentation, which of the following is essential? Question 31 options: Cholinesterase inhibitors Protease Myokinase Acetylcholinesterase Acid phosphatase Question 32 (1 point) Listen Athletes who train at high altitudes increase their red blood cell count, which increases their oxygen supply during exercise. Increased oxygen supply results in_________. Question 32 options: increased glycolysis increased use of myokinase longer aerobic respiration longer anaerobic fermentation reduced ATP consumption Question 33 (1 point) Listen Why is the contraction strength of smooth muscle relatively independent of its resting length? Question 33 options: It gets nearly all of its from the extracellular fluid. It does not have intercalated discs. It does not have sarcomeres. It is regulated by a length-tension relationship. It is involuntary muscle. Question 34 (1 point) Listen A muscle twitch produces external tension and moves an object by shortening the muscles during the_________ phase. Question 34 options: contraction latent twitch relaxation reload Question 35 (1 point) Listen A volleyball player depends on the gastrocnemius muscles for plantar flexion, whereas a marathon runner depends more on the soleus muscles for the same action. What characteristic of the soleus muscles makes this so? Question 35 options: They have smaller mitochondria. They have more glycogen in them. They don’t have as many blood capillaries per gram of tissue. They make more use of aerobic respiration. They break ATP down to ADP and Pi faster. Question 36 (1 point) Listen 80% of the lactate produced by skeletal muscle is converted to pyruvate by the _________. Question 36 options: kidneys liver muscle tissue sarcoplasmic reticulum neuromuscular junction Question 37 (1 point) Listen A skeletal muscle fiber (cell) contains a single nucleus. Question 37 options: True False Question 38 (1 point) Listen The sarcolemma of a resting muscle fiber is most permeable to_________. Question 38 options: calcium potassium sodium lithium magnesium Question 39 (1 point) Listen A bundle of muscle fibers is known as a_________. Question 39 options: fascicle sarcomere myofibril myofilament motor unit Question 40 (1 point) Listen What is contained within the structure at B? Question 40 options: Acetylcholine Calcium ions Sodium ions Acetylcholinesterase Dopamine Question 41 (1 point) Listen Based on their position and attachments, how would you classify the muscles shown here? Question 41 options: Adductors Lateral rotators Flexors Extensors Pronators Question 42 (1 point) Listen Name the arm muscle labeled 3. Question 42 options: Long head of triceps brachii Lateral head of triceps brachii Medial head of triceps brachii Brachialis Biceps brachii Question 43 (1 point) Listen Which muscle acting on the arm assists in deep inspiration? Question 43 options: Pectoralis major Trapezius Teres minor Diaphragm Deltoid Question 44 (1 point) Listen Which of the following extensors of the head is the most superficial? Question 44 options: Trapezius Semispinalis capitis Splenius capitis Sternocleidomastoid Temporalis Question 45 (1 point) Listen What type of muscle is this? Question 45 options: Fusiform Parallel Triangular Bipennate Multipennate Question 46 (1 point) Listen An out of shape middle-aged insurance salesperson accepts a friend’s invitation to a pickup basketball game. When attempting a jump shot, they fall to the ground in pain, grasping at their calf. There is an enormous bulge in their leg immediately below the popliteal fossa, and they are unable to plantar flex that foot. Most likely they have injured their_________ and the bulge is_________. Question 46 options: quadriceps tendon; their rectus femoris calcaneal tendon; their triceps surae patellar ligament; their fibularis longus tibia; a previously undetected bone tumor hamstrings; a large hematoma (blood clot) Question 47 (1 point) Listen The muscles of the head and neck are innervated by the_________. Question 47 options: cranial nerves spinal nerves muscle fibers aponeuroses muscle capillaries Question 48 (1 point) Listen Name the layer of connective tissue labeled 3. Question 48 options: Fascia Epimysium Perimysium Endomysium Retinaculum Question 49 (1 point) Listen Which of the following muscles is not externally visible on the trunk of the body? Question 49 options: Transverse abdominal Latissimus dorsi Trapezius Pectoralis major External abdominal oblique Question 50 (1 point) Listen Together, the group of muscles shown here is referred to as the _________. Question 50 options: Rotator cuff Hamstrings Quadriceps Lateral rotators Iliopsoas
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