BIO 240 1st edition Lecture 34Outline of Last Lecture III. VisionC. Physiology of sightIV. HearingA. Physiology of hearing B. Reflexes Outline of Current LectureI. Overview of Endocrine System and Comparison to other systemsA. A-F: READING ASSINGMENT ON BLACKBOARDG. Hormones and Functions1. Hypothalamus2. Pituitary GlandCurrent LectureII. Overview of Endocrine System and Comparison to other systemsA. A-F: READING ASSINGMENT ON BLACKBOARDG. Hormones and Functions1. Hypothalamus Produces 6 hormones that regulate the anterior pituitary and 2 hormones that it stores in the posterior pituitary. a. Growth Hormone – Releasing Hormone (GHRH) Promotes secretion of Growth Hormone (GH) from the anterior pituitary gland. b. Somatostatin Inhibits secretions of GH and Thyroid Stimulating Hormone (TSH).c. Oxytocin (OT) Causes uterine contractions and lactation in females. Pair bonding in both sexes (may cause males to be monogamous). *stored and released by the posterior pituitary gland*d. Antidiuretic Hormone (ADH)/ Vasopressin Acts on nephrons of the kidneys to retain water. Helps you not become dehydrated. Helps regulate blood pressure. *stored and released by the posterior pituitary gland*2. Pituitary Gland 2 lobes that act like separate glands (anterior and posterior)a. Anterior lobe – Makes 6 different hormones; know 4i. Follicle Stimulating Hormone (FSH) In females, stimulatessecretions of sex hormones (estrogen and progesterone) and follicle production in the ovaries. In males, stimulates sperm production. These notes represent a detailed interpretation of the professor’s lecture. GradeBuddy is best used as a supplement to your own notes, not as a substitute.ii. Leutenizing Hormone (LH) In females, promotes or causes ovulation. In males, signals the secretion of testosterone. iii. Thyroid Stimulating Hormone (TSH) Stimulates the thyroid gland to release thyroid hormone. iv. Growth Hormone (GH) Acts on bones (skeletal tissues) for growth. i. Gigantism Hyperproduction of GH before puberty. Height and diameter of bones are increased. ii. Acromegaly Hyperproduction of GH after puberty. Typical of a pituitary gland tumor. Makes the facial, and especially the nose, bones grow and flare out. iii. Pituitary Dwarfism Hypoproduction of GH before puberty. Person grows less, but organs and everything grows in proportion to the skeletal system, so there are less problems.
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