Explain how a reticulocyte differs from an erythrocyte
What will be an ideal response?
Reticulocytes must eject their organelles to enter the blood stream and become erythrocytes. Reticulocytes are found in the blood stream in small numbers and can bind and transport oxygen on their hemoglobin molecules.
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Catabolism would be best described as a process that ________.
A) causes a decline in circulating ketone bodies B) builds up triglycerides during the postabsorptive state C) breaks down complex structures to simpler ones D) elevates glucagon levels
The coracohumeral ligament is associated with the
A) knee joint. B) elbow joint. C) hip joint. D) shoulder joint.
Which of the following statements is true regarding the thyroid hormones (T3 and T4)?
a. They inhibit hypothalamus secreting TRH (thyrotropin-releasing hormone) b. They inhibit anterior pituitary secreting TSH (thyrotropin or thyroid-stimulating hormone) c. They stimulate hypothalamus secreting TRH (thyrotropin-releasing hormone) d. They stimulate anterior pituitary secreting TSH (thyrotropin or thyroid-stimulating hormone)
What is released from axon terminals to stimulate a muscle fiber to contract?
A. Troponin B. Acetylcholine C. Calcium ions D. ATP