51. Increased RBC's in the blood leads to a condition called
52. Platelet is also known as
53. Antibodies are produced by
54. Oxygenated blood is carried from the lungs to the ________ by the pulmonary veins.
55. Which one is the largest cells in white blood corpuscles?
56. Which is the innermost layer of the heart?
57. ________ is a hormone that regulates the amount of glucose in the blood.
58. Which one of following is known as pace maker of endocrine gland?
59. The rate of heartbeat is accelerated by the hormone
60. Cortisol is secreted by
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