weakness fatigability hypoglycemia and related metabolic problems lowered

Weakness fatigability hypoglycemia and related

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weakness, fatigability, hypoglycemia and related metabolic problems, lowered response to stressors, hyperpigmentation, vitiligo, and manifestations of hypovolemia and hyperkalemia.11. Hyperfunction of the adrenal medulla is usually caused by a pheochromocytoma, a catecholamine-producing tumor. Symptoms of catecholamine excess are related to their sympathetic nervous system effects and include hypertension, palpitations, tachycardia, glucose intolerance, excessive sweating, and constipation.1. Differentiation of female and male genitalia begins around 7 to 8 weeks of embryonic development when the gonadsof genetically male embryos begin to secrete male sex hormones, primarily testosterone, under the influence of SRYgene expression and testosterone-determining factor (TDF). Female gonadal development occurs in the absence of SRYgene expression. Until that time, the primitive reproductive organs of males and females are homologous (the same).2. The structure and function of both male and female reproductive systems depend on interactions among the central nervous system (hypothalamus), the endocrine system (anterior pituitary), the gonads (ovaries, testes), and the hypothalamic-pituitary-gonadal (H-P-G) axis. A set of complex neurologic and hormonal interactions accelerate at puberty and lead to sexual maturation and reproductive capability.3. Production of primitive female gametes (ova) occurs solely during fetal life. From puberty to menopause, one female gamete matures per menstrual cycle. Production of the male gametes (sperm) begins at puberty; after that, millions are produced daily, usually for life.4. Puberty is the onset of sexual maturation. Adolescence is a stage of human development between childhood and adulthood and includes social, psychologic, and biologic changes.5. At puberty, extrahypothalamic factors cause the hypothalamus to secrete gonadotropin-releasing hormone (GnRH), which stimulates the anterior pituitary to secrete the gonadotropins follicle-stimulating hormone (FSH) and luteinizing hormone (LH) that stimulate the gonads (ovaries and testes) to secrete female (estrogen and progesterone) or male sex hormones (testosterone). Puberty is complete in females with the first ovulatory menstrual period and is complete in males with the first ejaculation that contains mature sperm.The Female Reproductive System1. The function of the female reproductive system is to produce mature ova and, when they are fertilized, to protect andnourish them through embryonic and fetal life and expel them at birth.2. The external female genitalia are the mons pubis, labia majora, labia minora, clitoris, vestibule (urinary and vaginal openings), Bartholin glands, and Skene glands. They protect body openings and may play a role in sexual functioning.7993. The internal female genitalia are the vagina, uterus, fallopian tubes, and ovaries. Although all these organs are Module 7 – Reproductive (ch. 32-34) Did You Understand? Chapter 32 Development of the Reproductive Systems
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