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Anatomy: Tissues
Human Anatomy (Marieb)
| Question | Answer |
|---|---|
| What kind of membrane covers the body surface? | Cutaneous |
| What kind of membrane covers the body cavities that are open to the exterior? | Mucous |
| What kind of membrane covers the body cavities that are closed to the exterior? | Serous |
| What are neurons? | Specialized nerve cells that generate and conduct nerve impulses |
| What are neuroglia? | Supporting cells that support, insulate, and protect neurons |
| What are the three types of muscle tissue? | Skeletal, Cardiac muscle, and Smooth muscle tissues |
| What is the only kind of voluntary muscle tissue | Skeletal |
| True or False. Nerve fibers are found in cartilage as well as in the spinal column | False |
| What does Avascular mean | Lacking blood vessels, cartilage receives nutrients from the surrounding membranes |
| What are the three types of cartilage? | Hyaline, Elastic, and Fibrocartilage |
| What is the tissue name for bone? | Osseous Tissue |
| What are 4 functions of bone? | Supports the body Protects the body Stores fat synthesizes blood cells |
| Does bone have more collagen or cartilage? | Collagen |
| What do Osteoblasts do? | Produce Matrix |
| What do Osteocytes do? | Maintain the matrix |
| What are dense regular connective tissues? | closely packed bundles of collagen fibers running parallel to the direction of pull |
| What is Adipose tissue? | Fat |
| What are three functions of Adipose tissue | Shock absorption Insulation Energy Storage |
| What is adipocyte? | Cell specialized for fat storage |
| What is the medical meaning of "-blast"? | Immature form of cell |
| What are the abilities of extracellular matrix? | bears weight soft packing around organs withstands stretching and abrasion |
| Name three kinds of fibers. | Collagen Elastic Reticular |
| what are some functions of connective tissues? | Binding and support protection insulation storing reserve fuel transporting substances (blood) |
| What is Glandular Epithelial Tissue | Cells that make or secrete a product |
| In what two ways are Glandular Epithelial Tissue classified? | Site of product release unicellular or multicellular |
| Describe Endocrine cells | lose connection to the surface ductless secretions go directly to blood |
| Where are Endocrine cells located? | Adrenal and thyroid |
| Describe Exocrine cells | Retain ducts secretions empty into epithelial surface |
| Where are Exocrine cells located? | Sweat glands, oil glands, mucus, salivary |
| Describe some special characteristics of epithelial tissue | Fit closely together in sheets (except glandular) Have one unattached surface Have a lower surface Depend on diffusion from capillaries for nutrients and oxygen Can regenerate easily if healthy |
| What is the apical membrane? | The unattached surface of the epithelial tissue (Cilia, microvilli here if present) |
| What is the name of the lower surface of the epithelial tissue? | Basement or basal membrane |
| How are Epithelial Tissues characterized? | Cell arrangement (# of layers) Shape |
| What are the main functions of Epithelial Tissues | Protection Absorption Filtration Secretion Excretion Secretion Sensory Recept |
| What are some things that happen to tissues as we age? | Epithelia thin so more easily breached Tissue repair becomes less efficient Bone, muscle and nervous tissues begin to atrophy DNA mutations possible (increased cancer risk) |
Created by:
twolden1
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