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Toni Collins
Anatomy and Physiology
| Term | Definition |
|---|---|
| A signal is traveling toward a particular center or point of reference in homeostasis. | Afferent |
| In homeostasis, a signal is moving away from a center or other point of reference. | Efferent |
| Organs, such as muscles or glands, that directly influence controlled physiological variables are _____________. | Effectors |
| This is a functional group that is temporarily unattached and is highly reactive because of unpaired electrons. | Free Radical |
| All ___________compounds contain the elements carbon, hydrogen, and oxygen—usually in the ratio of 1:2:1. | Carbohydrates |
| Lipids ordinarily do not dissolve in water because lipid molecules are generally ________________. | Nonpolar |
| __________________ are often called tissue hormones, are lipids com-posed of a 20-carbon unsaturated fatty acid that contains a 5-carbon ring | Prostglandins |
| The sebaceous gland secretes ___________ to lubricate and condition the hair and surrounding skin to keep it from becom-ing dry, brittle, and easily damaged. | Sebum |
| These glands are located deep in the subcutaneous layer of the skin in the armpit (axilla), the areola of the breast, and the pigmented skin areas around the anus | Apocrine Sweat Glands |
| This dermal layer has projections into the epidermis; contains fine collagenous and elastic fibers; contains the dermoepidermal junction; forms a unique pattern that gives individual fingerprints. | Papillary Layer |
| This layer contains dense, interlacing white collagenous fibers and elastic fibers to make the skin tough yet stretchable; when processed from animal skin, produces leather. | Reticular Layer |
| Epidermal dendritic cells trigger helpful immune reaction working with these cells. | Helper T Cells |
| Bones serve the 5 following functions: | Support Protection Movement Mineral Storage Hematopoiesis |
| ____________ is a thin, fibrous membrane that lines the med-ullary cavity of long bones. | Endosteum |
| The _________________ cavity is a tubelike hollow space in the diaphysis of a long bone, also called a marrow cavity. | Medullary cavity |
| The _________________of bone, or bone matrix, can be subdivided into two principal chemical components: inorganic salts and organic matrix. | Extracellular Matrix |
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ToniLisa
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