Chapter 19: Animal Tissue and Organs
About this set
Created by:
SGeorgeAZ on March 4, 2012
Subjects:
biology, tissues, organs, blood, smooth muscle, skeletal muscle
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25 terms
Terms | Definitions |
|---|---|
 homeostasis | the process of maintaining favorable conditions inside the body. |
| organ system | Structural unit that is composed of two or more tissues and adapted to carry out a particular task. |
| stem cell | A cell that can divide and create more stem cells or differentiate to become a specialize cell type. |
| tissue | A collection of one or more specific cell types that are organized in a way that suits them to a task. |
| connective tissue | Animal tissue with an extensive extracellular matrix; provides structural and functional support. |
| endocrine gland | Ductless gland that secrete hormones into a body fluid. |
| epithelial tissue | Sheet-like animal tissue that covers outer body surfaces and lines internal tubes and cavities. |
| exocrine gland | Gland that secretes milk, sweat, saliva, or some other substance through a duct. |
| fibroblast | Main cell type in soft connective tissue; secretes collagen and other components of extracellular matrix. |
| gland | Cluster of secretory epithelial cells. |
| adipose tissue | Connective tissue with fat-storing cells. |
| blood | Fluid connective tissue with cells that form inside bones. |
| bone tissue | Connective tissue with cells surrounded by a mineral-hardened matrix of their own secretions. |
| cardiac muscle tissue | Striated, involuntary muscle of the heat wall. |
| cartilage | Connective tissue with cells surrounded by a rubbery matrix of their own secretions. |
| dense connective tissue | Connective tissue with many fibroblasts and fibers in a random or regular arrangement. |
| loose connective tissue | Connective tissue with relatively few fibroblasts and fibers scattered in its matrix |
| skeletal muscle tissue | Striated, voluntary muscle that interacts with bone to move body parts. |
| smooth muscle tissue | Involuntary muscle that lines blood vessels and hollow organs; not striated. |
| dermis | Deep layer of skin that consists of connective tissue with nerves and blood vessels running through it. |
| epidermis | Outermost, epithelial skin layer. |
| nervous tissue | Animal tissue composed of neutrons and supporting cells; detects stimuli and controls responses to them. |
| neuron | Main type of cell in nervous tissue; transmits electrical signals along its plasma membrane and communicates with other cells through chemical messages. |
| negative feedback | A change causes a response that reverses the change. |
| sensory receptor | Cell or cell component that detects stimuli and signals the brain. |
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