ACTH is secreted from the anterior pituitary in response to corticotropin-releasing hormone from the hypothalamus. corticotropin-releasing hormone is secreted in response to many types of stress, which makes sense in view of the stress management functions of glucocorticoids.
9-13 cm: With an ultrasound evaluation, the normal kidney size is 9-13 cm. One kidney may be up to 1.5 CM difference in size from the other and still be in acceptable range. Kidney sizes in females may be some smaller than in males but evenso a kidney smaller than 9 CM is abnormally small.
Kidneys are bean shaped organs approximately 11 to 14 centimeters long, 6 centimeters wide and 4 centimeters thick. Located in the abdominal cavity, they lie retroperitoneally. The right kidney is placed lower than the left, with the latter being slightly more medial than the former. The left kidney is at the level of T12 to L3, and its counterpart slightly lower.[ 2 ]. The image shows the location of both kidneys: the left at the T12 to L3 level and the right lower than the other.