Selasa, 04 Juni 2013

Vocabulary of concepts from chapter 33

1.       adhering junction           Junction where a mass of anchored proteins help adjoining cells adhere.

2.       adipose tissue  A connective tissue having an abundance of fat-storing cells.

3.       blood    Fluid connective tissue of water, solutes, and formed elements (blood cells, platelets). Transports substances to and from cells, helps maintain internal environment.

4.       bone tissue       A tissue of osteoblast secretions hardened with minerals.

5.       cardiac muscle tissue    A contractile tissue that is present only in the heart wall.

6.       cartilage              Connective tissue with solid, pliable intercellular material that resists compression.

7.       dense irregular connective tissue           Animal tissue with fibroblasts, many asymmetrically positioned fibers in ground substance. In skin and some capsules around organs.

8.       dense regular connective tissue              Animal tissue with rows of fibroblasts between parallel bundles of fibers.

9.       ectoderm           The first-formed outermost primary tissue layer of animal embryos; gives rise to nervous system tissues and integument's outer layer.

10.   endocrine gland              Ductless gland that secretes hormones, which the bloodstream distributes.

11.   endoderm         Inner primary tissue layer of animal embryos; source of inner gut lining and derived organs.

12.   epithelium         Animal tissue that covers external surfaces and lines internal cavities and tubes.

13.   exocrine gland Glandular structure that secretes products, usually through ducts or tubes, to a free epithelial surface.

14.   gap junction      Cylindrical arrays of proteins in the plasma membrane that pair up as open channels for signals between adjoining cells.

15.   gland cell            A cell that secretes products unrelated to their own metabolism for use elsewhere

16.   homeostasis     State in which physical and chemical aspects of internal environment are being maintained within ranges suitable for cell activities.

17.   internal environment   Blood and interstitial fluid.

18.   loose connective tissue               Animal tissue with fibers, fibroblasts loosely arrayed in semifluid ground substance.

19.   mesoderm         Primary tissue layer of all large complex animals; gives rise to many internal organs and part of the integument.

20.   nervous tissue Connective tissue composed of neurons and often neuroglia.

21.   neuroglia            Cells that structurally and metabolically support neurons.

22.   neuron                Type of nerve cell

23.   organ    Body structure with definite form and function that consists of more than one tissue.

24.   organ system    Organs interacting chemically, physically, or both in a common task.

25.   skeletal muscle tissue   Striated contractile tissue that is the functional partner of bone.

26.   smooth muscle tissue   Nonstriated contractile tissue found in soft internal organs.

27.   tight junction    Cell junction where strands of fibrous proteins oriented in parallel with a tissue's free surface collectively block leaks between the adjoining cells.

28.   tissue   a group of cells and intercellular substances that function together in one or more specialized tasks.

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