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Definition
| The gradual diminution of and changes in the male reproductive system, similar to menopause in women |
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Definition
| A cardiovascular disorder, the result of loss of elasticity and accumulation of collagen, that results in a thickening of the arterial walls |
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Definition
| Degenerative changes that promote the accumulation of cholesterols in the walls of large arteries |
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Definition
| Disorder that occurs when the immune system does not distinguish between self-antigens and non-self-antigens |
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Definition
| Any agent known to cause cancer |
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Definition
| Insertion of a flexible tube into a body cavity for the purpose of draining fluid |
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Definition
| A theory of aging that proposes that the accumulation of substances such as lipofuscins interferes with normal function of the cell, thereby contributing to the aging process |
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Definition
| A theory of aging that proposes the formation of cross-links of proteins in aging cells, resulting in dysfunction of these cells |
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Definition
| The layer of the skin beneath the outer epidermis, extending down to deep tissues |
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Definition
| A chronic syndrome of impaired carbohydrate, protein, and fat metabolism caused by insufficient secretion of insulin |
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Term
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Definition
| Painful sexual intercourse, often a result of decreased levels of sex hormones |
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Term
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Definition
| A female sex hormone responsible for the development of female secondary sex characteristics |
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Term
| Follicle-stimulating hormone (FSH) |
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Definition
| A pituitary hormone that stimulates maturation of ovarian follicles and sperm production |
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Term
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Definition
| A theory of aging in which it is posited that free radicals, which are byproducts of normal cellular metabolism, accumulate, contributing to the changes associated with aging |
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Definition
| A theory of aging in which it is posited that gene mutation alters normal cellular function, causing malfunction and, eventually, cell death |
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Definition
| A theory of aging in which it is posited that aging is a programmed process caused by a gene that becomes active later in life |
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Term
| Gonadotropin-releasing hormone (GnRH) |
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Definition
| Hypothalamic hormone that controls the release of follicle-stimulating hormone and luteinizing hormone from the pituitary gland |
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Term
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Definition
| Lacking voluntary control over urination or defecation |
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Term
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Definition
| Any horny growth, such as a wart or callus |
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Definition
| A small, flat macular spot on the skin, resembling a freckle |
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Definition
| A lipid pigment that is a product of oxidation and polymerization of membrane lipids of organelles that have undergone autophagocytosis |
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Term
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Definition
| A pituitary hormone responsible for ovulation and testosterone production |
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Term
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Definition
| A membrane that lines various structures, comprising the epithelium, basement membrane, lamina propria, and lamina muscularis |
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Definition
| A fiber contained in a neuron |
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Definition
| A group of substances that travel across the synapse to excite or inhibit target cells |
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Term
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Definition
| Frequent urination during the night |
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Term
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Definition
| A chronic disorder of cartilage, bones, and some of the tissues that surround the joints, also called degenerative joint disease or "wear and tear" joint disease |
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Term
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Definition
| A common metabolic bone disorder characterized by a decrease in bone mass and density, together with loss of bone matrix and mineralization resulting in brittle and weak bones |
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Term
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Definition
| A solid, elevated, or flat lesion |
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Term
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Definition
| Farsightedness associated with aging caused by a loss of elasticity of the lens |
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Term
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Definition
| A female sex hormone that is primarily responsible for preparing parts of the female body for and maintaining them through pregnancy |
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Term
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Definition
| The period of life from the onset of old age to death |
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Term
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Definition
| Tissue that lies beneath the skin |
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Term
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Definition
| A male sex hormone that is responsible for the development of male sex characteristics and the production of sperm |
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Term
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Definition
| Tissue affected by ulcers, which are local lesions on the surface of an organ or tissue produced by inflamed necrotic tissue |
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