Download Portage Learning:A&P 1 Module 6 Questions and Correct Answers and more Exams Nursing in PDF only on Docsity! Portage Learning:A&P 1 Module 6 Questions and Correct Answers|Graded A+ Portage Learning:A&P 1 Module 6 Questions and Correct Answers|Graded A+ Does the nervous system or the endocrine system react faster to external/ internal stimuli? - ✔The nervous system What are the two major groups of hormones and what are their derivatives? - ✔1- Peptide (derived from proteins and catecholamines) 2- Steroids (derived from cholesterol) Hormones can react with cells that have what on their cell surface? - ✔Receptor Do peptide or steroid hormones react faster? - ✔Peptide True or false: Endocrine glands contain ducts and secrete their contents directly into an epithelial lining. - ✔False True or false: the hypothalamus and pituitary glands are in the abdomen. - ✔False The adrenal glands are found on top of the - ✔Kidneys Name three secondary endocrine organs. - ✔Heart, thymus, kidneys, gonads Describe homeostasis in the body. - ✔(set-point) is a range in which the body acts to maintain all its levels for function. During negative feedback a hormone level is high. What happens to hormone production? - ✔The brain detects the hormone level is too high and hormone production is shut off. The action of oxytocin works through positive or negative feedback? - ✔Positive feedback. Why are the neurons in the hypothalamus called neurosecretory cells? - ✔They are cells that respond to neurotransmitters and produce hormones. Portage Learning:A&P 1 Module 6 Questions and Correct Answers|Graded A+ Axons travel from the hypothalamus terminate in what region of the brain? - ✔Posterior pituitary The posterior pituitary gland stores what two main hormones? - ✔ADH and Oxytocin What does ADH do in the body? - ✔ADH promotes the reabsorption of water from the collecting ducts, which receive urine produced by nephrons within the kidneys. As the blood becomes dilute, the hormone no longer is released until it is needed again. What hormone stimulates the release of milk from the mammary glands? - ✔Oxytocin What major hormones are secreted from the anterior pituitary gland? - ✔GH, Prolactin, MSH, TSH, ACTH, FSH, LH GH (Target) - ✔All body cells GH (Action) - ✔Growth of body (height) Promotion of cell division Protein synthesis Bone growth- stimulation of osteoblasts TSH (Target) - ✔thyroid gland TSH (Action) - ✔Thyroid gland (to produce T3, T4) Gonadotropic hormones (FSH, LH) (Target) - ✔Gonads (Testes, ovaries) Gonadotropic hormones (FSH, LH) (Action) - ✔Control hormonal secretions of testes, ovaries What is a goiter? - ✔When iodine is lacking in the diet, the thyroid gland enlarges, called a goiter. Goiters happen because of the relationship between the thyroid and the anterior pituitary. When there is a low level of thyroxin in the blood, the anterior pituitary continues to produce TSH. The thyroid responds by increasing in size (and producing a goiter). However, this size increase is ineffective because active thyroxin cannot be produced without iodine. True or false: Congenital hypothyroidism occurs in individuals with low thyroid levels in adulthood only. - ✔False
