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Flashcards in Terms Deck (23)
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1
Q

histology

A

the microscopic study of tissues and cells

2
Q

epithelium

A

type of body tissue that forms the covering on all internal and external surfaces of your body, lines body cavities and hollow organs and is the major tissue in glands.

3
Q

free surface

A

the surface that is in contact with air.

4
Q

basement membrane

A

thin layers of a specialized extracellular matrix that form the supporting structure.

5
Q

simple epithelium

A

They form the covering of all body surfaces, line body cavities and hollow organs, and are the major tissue in glands

6
Q

stratified epithelium

A

tissue that is composed of more than one layer of epithelial cells.

7
Q

squamous

A

type of epithelial cell characterized by its flat and scale-like shape,

8
Q

cuboidal columnar

A

cuboidal (boxy, as wide as it is tall), or columnar (rectangular, taller than it is wide).

9
Q

transitional epithelium

A

a type of tissue that lines the bladder, ureters, and part of the urethra. It can stretch and expand to accommodate changes in volume, serving as a protective barrier and preventing urine leakage.

10
Q

gland

A

a group of cells or an organ that produces and secretes substances, such as hormones, enzymes, or sweat, either into the bloodstream or into a body cavity or surface.

11
Q

exocrine gland

A

a gland that secretes substances, such as enzymes, mucus, sweat, oil, or saliva, into ducts. These ducts then transport the secretions to specific locations, such as body surfaces or cavities, to perform their functions.

12
Q

endocrine gland

A

a gland that secretes hormones directly into the bloodstream. These hormones are then carried to target organs or tissues in the body, where they regulate various physiological processes and maintain overall balance and homeostasis.

13
Q

connective tissue

A

a type of tissue that provides support, structure, and connection between different tissues and organs in the body. It consists of cells and an extracellular matrix that contains fibers and ground substance. Connective tissue plays a role in cushioning, protecting, and nourishing other tissues, as well as in maintaining the overall integrity and function of the body.

14
Q

matrix

A

refers to the non-cellular component of connective tissue that surrounds and supports cells. It consists of a gel-like substance called ground substance and various fibers, such as collagen and elastin. The matrix provides structural integrity, strength, and flexibility to the tissue, as well as facilitates cell communication and nutrient exchange.

15
Q

dense connective tissue

A

a type of connective tissue characterized by a high density of collagen fibers. It provides strength, support, and resistance to stretching in different parts of the body, such as tendons, ligaments, and the dermis of the skin. Dense connective tissue has fewer cells and more fibers compared to other types of connective tissue, making it well-suited for providing structural integrity and mechanical stability.

16
Q

collagen

A

a fibrous protein that is a major component of connective tissues in the body. It provides strength, structure, and elasticity to various tissues, including skin, tendons, ligaments, and bones. Collagen helps to maintain the integrity and resilience of these tissues, and it plays a crucial role in wound healing and tissue repair.

17
Q

fibroblasts

A

cells found in connective tissue that are responsible for producing and maintaining the extracellular matrix. They play a critical role in wound healing, tissue repair, and the synthesis of collagen, elastin, and other components of the connective tissue matrix. Fibroblasts are involved in maintaining the structural integrity and strength of tissues and are essential for the proper functioning of various organs and systems in the body.

18
Q

loose connective tissue

A

a type of connective tissue that has a loose arrangement of cells and fibers within an abundant ground substance. It fills the spaces between organs, provides support, and acts as a cushioning material. It also facilitates the exchange of nutrients, waste, and immune cells between different tissues. Loose connective tissue is found in various parts of the body, including beneath the skin, around blood vessels, and surrounding organs.

19
Q

adipose tissue

A

a specialized type of connective tissue primarily composed of fat cells called adipocytes. Its primary function is to store energy in the form of fat and serve as insulation and protection for the body. Adipose tissue is found throughout the body and is particularly concentrated in areas such as the abdomen, buttocks, and thighs. It plays a crucial role in regulating energy balance, hormone production, and thermal regulation.

20
Q

cartilage

A

a strong, flexible connective tissue that protects your joints and bones.

21
Q

bone

A

made of connective tissue reinforced with calcium and specialized bone cells.

22
Q

osteocyte

A

a cell that lies within the substance of fully formed bone.

23
Q

blood

A

fluid that transports oxygen and nutrients to the cells and carries away carbon dioxide and other waste products.