Contemplation

Solved by ramonistry Exercise 4: Endocrine System Physiology: Activity 4: Measuring Cortisol and Adrenocorticotropic Hormone Lab Report Pre-lab Quiz Results You scored 100% by answering 5 out of 5 questions correctly. Cortisol You correctly answered: d. is a hormone important in the body's response to stress. ACTH You correctly answered: d. is a tropic hormone that stimulates cortisol release. CRH You correctly answered: b. has a tropic effect on the anterior pituitary gland. Cushing's syndrome refers to You correctly answered: c. a hypercortisolism, which could be iatrogenic. A condition of hypocortisolism You correctly answered: d. refers to low levels of cortisol in the blood. 06/02/15 page 1 Experiment Results Stop & Think Questions: Normally high levels of cortisol would inhibit release of You correctly answered: c. both ACTH and CRH Which hormone(s) stimulate(s) the pituitary gland to release ACTH? You correctly answered: a. CRH Experiment Data: Patient

Solved by ramonistry Exercise 4: Endocrine System Physiology: Activity 2: Plasma Glucose, Insulin, and Diabetes Mellitus Lab Report Pre-lab Quiz Results You scored 100% by answering 5 out of 5 questions correctly. Which of the following statements is false? You correctly answered: d. Insulin is a hormone secreted into the stomach to aid with starch digestion. Which of the following statements is true? You correctly answered: d. All of these statements are true. A diagnosis of type 1 diabetes mellitus implies that You correctly answered: b. the pancreas is not producing sufficient insulin. A diagnosis of type 2 diabetes mellitus implies that You correctly answered: c. the cells of the body are unresponsive to circulating insulin. Glucagon is a hormone You correctly answered: b. that opposes the action of insulin. 06/02/15 page 1 Experiment Results Predict Question: Predict Question: To measure the amount of plasma glucose in a patient sample Your answer : a. the glucose co

Solved by ramonistry Exercise 4: Endocrine System Physiology: Activity 1: Metabolism and Thyroid Hormone Lab Report Pre-lab Quiz Results You scored 100% by answering 6 out of 6 questions correctly. Which of the following statements about metabolism is false? You correctly answered: d. All of the energy from metabolism is ultimately stored in the chemical bonds of ATP. Thyroxine is You correctly answered: c. the most important hormone for maintaining the metabolic rate and body temperature. Thyroid-stimulating hormone (TSH) is You correctly answered: b. produced in the pituitary gland. An injection of TSH to an otherwise normal animal will cause which of the following? You correctly answered: d. goiter development Thyrotropin-releasing hormone (TRH) is You correctly answered: a. secreted by the hypothalamus. Which of the following statements is true? You correctly answered: b. The hypothalamus primarily secretes tropic hormones that stimulate the secretion of other hormones.

Solved by ramonistry Exercise 2: Skeletal Muscle Physiology: Activity 6: The Skeletal Muscle Length-Tension Relationship Lab Report Pre-lab Quiz Results You scored 100% by answering 5 out of 5 questions correctly. During an isometric contraction You correctly answered: d. the skeletal muscle is generating force, but it remains at a fixed length. The force that results from muscles being stretched is You correctly answered: a. passive force. Active force You correctly answered: b. is determined by the amount of myosin bound to actin. When you generate the isometric length-tension curve, which of the following forces will not be indicated on your screen? You correctly answered: c. tetanic force Passive force in skeletal muscle is largely caused by You correctly answered: c. the protein titin. Experiment Results Predict Question: Predict Question: As the resting length of the muscle is changed, what will happen to the amount of total force the muscle generates during the stim

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Solved by ramonistry Exercise 2: Skeletal Muscle Physiology: Activity 4: Tetanus in Isolated Skeletal Muscle Lab Report Pre-lab Quiz Results You scored 100% by answering 3 out of 3 questions correctly. Stimulus frequency refers to You correctly answered: b. the rate that stimulating voltage pulses are applied to an isolated whole skeletal muscle. Which of the following distinguishes a state of unfused tetanus from a state of complete (fused) tetanus? You correctly answered: d. Muscle tension increases and decreases during a state of unfused tetanus. When the stimulus frequency reaches a value beyond which no further increases in force are generated by the muscle, the muscle has reached its You correctly answered: a. maximal tetanic tension. Experiment Results Predict Question: Predict Question: As the stimulus frequency increases further, what will happen to the muscle tension and twitch appearance with each successive stimulus? Will there be a limit to this response? Your an

Solved by ramonistry Exercise 2: Skeletal Muscle Physiology: Activity 3: The Effect of Stimulus Frequency on Skeletal Muscle Contraction Lab Report Pre-lab Quiz Results You scored 100% by answering 4 out of 4 questions correctly. During a single twitch of a skeletal muscle You correctly answered: b. maximal force is never achieved. When a skeletal muscle is repetitively stimulated, twitches can overlap each other and result in a stronger muscle contraction than a stand-alone twitch. This phenomenon is known as You correctly answered: c. wave summation. Wave summation is achieved by You correctly answered: a. increasing the stimulus frequency (the rate of stimulus delivery to the muscle). Wave summation increases the force produced in the muscle. Another way to increase the force produced by a muscle is to You correctly answered: d. increase the number of activated motor units. Experiment Results Predict Question: Predict Question 1: As the stimulus frequency increases, what

Solved by ramonistry Exercise 2: Skeletal Muscle Physiology: Activity 2: The Effect of Stimulus Voltage on Skeletal Muscle Contraction Lab Report Pre-lab Quiz Results You scored 100% by answering 4 out of 4 questions correctly. Skeletal muscle fibers are innervated (stimulated) by You correctly answered: c. motor neurons. A single action potential propagating down a motor axon results in You correctly answered: d. a single action potential and a single contractile event in the muscle fibers it innervates. In resting skeletal muscle, calcium is stored in You correctly answered: c. the sarcoplasmic reticulum. During the latent period for an isometric contraction You correctly answered: c. the cellular events involved in excitation-contraction coupling occur. Experiment Results Predict Question: Predict Question: As the stimulus voltage is increased from 1.0 volt up to 10 volts, what will happen to the amount of active force generated with each stimulus? Your answer : a. The ac

Solved by ramonistry Exercise 2: Skeletal Muscle Physiology: Activity 1: The Muscle Twitch and the Latent Period Lab Report Pre-lab Quiz Results You scored 100% by answering 5 out of 5 questions correctly. Skeletal muscles are connected to bones by You correctly answered: b. tendons. Skeletal muscles are composed of hundreds to thousands of individual cells called You correctly answered: c. fibers. The term motor unit refers to You correctly answered: c. one motor neuron and all of the skeletal muscle fibers it innervates. The motor neuron and muscle fiber intersect at what is called You correctly answered: d. the neuromuscular junction. A twitch is You correctly answered: a. one contractile response to a single action potential. 05/28/15 page 2 Experiment Results Predict Question: Predict Question: Will changes to the stimulus voltage alter the duration of the latent period? Your answer : b. No, changing the stimulus voltage will not change the latent period duration. Stop &a