← ch. 18 Test
5 Written Questions
5 Matching Questions
- Pituitary gland & Hypothalamus
- Pineal Body
- Effects of aging on endrocrine system
- a In epithalamus. Produces Melatonin- enhances sleep, immune response. and Arginine Vasotocin- regulates function of reproductive system in some animals
- b Where nervous and endocrine systems interact
- c Gradual decrease in secretory activity of some glands- GH, Melatonin, Thyroid hormones, Kidneys secrete less renin. Familial tendency to develop Type II diabetes.
- d Female, from Gonads, Estrogen and Progesterone- uterine and mammary gland development and function, genitalia structure, sex characteristics, menstrual cycle. Inhibin- inhibits FSH secretion. Relaxin- increases flexibility of symphysis pubis and dilation of the cervix
- e Decreased metabolic rate, Weight gain, reduced appetite, Dry and cold skin, Weak, flabby skeletal muscles, sluggish, Myxedema, Apathetic, somnolent, Coarse hair, rough dry skin, Decreased iodide uptake, Possible goiter, Cretinism
5 Multiple Choice Questions
- Zona reticularis, Androstenedione and testosterone. Cause the development of male secondary sexual characteristics
- Anterior Pituitary. Both hormones regulate production of gametes and reproductive hormones. Testosterone in males. Estrogen and progesterone in females. GnRH from hypothalamus stimulates their secretion
- Embedded in thyroid. Made up of chief cells, which secrete PTH increasing blood calcium levels, stimulates osteoclasts, and promotes calcium reabsorption by kidneys, and Oxyphils whose function is unknown.
- Stomach- Gastrin, Histamine. Duodenum- Secretin, Cholecystokinin
- Produced by many tissues of the body, is an autocrine and paracrine regulatory substance. Promotes inflammation, pain, vasodilation of blood vessels, and is inhibited by aspirin.
5 True/False Questions
Growth Hormone (GH) → Parathyroid gland. Also called Parathormone. Targets bones, kidneys, and intestine. Increases blood calcium levels by stimulating osteoclast activity, increases phosphate release from bone but also increases excretion in the kidney to decrease blood phosphate levels.
Melanocyte-Stimulating Hormone (MSH) → Anterior Pituitary. Increases skin pigmentation
Antidiuretic Hormone → Include Triiodothryronine or T3 and Tetraiodothyronine or T4 or thyroxine. Transported in blood. Bind with intracellular receptor molecules and initiate new protein synthesis. Increase rate of glucose, fat, protein metabolism in many tissues thus increasing body temperature. Normal growth of many tissues dependent on thyroid hormones. Calcitonin from parafollicular cells reduces blood calcium levels
Testes → Female, from Gonads, Estrogen and Progesterone- uterine and mammary gland development and function, genitalia structure, sex characteristics, menstrual cycle. Inhibin- inhibits FSH secretion. Relaxin- increases flexibility of symphysis pubis and dilation of the cervix
Lipotropins → Posterior Pitutitary. Associated with pregnancy and birth. Promotes uterine contractions during delivery. Causes milk ejection in lactating women by stimulating smooth muscle-like cells associated with the alveoli of mammary glands. Also associated with the contraction of the smooth muscle of the uterus during menses and sexual intercourse. Stretch of the uterus, mechanical stimulation of the cervix, and stimulation of the breast nipples as in nursing stimulates oxytocin secretion. Not much is known about the effects of oxytocin in males