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Flashcards in Types of Cells Deck (32)
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1
Q

simplified definition of an epithelial tissue

A

lines and covers surfaces

2
Q

simplified def. of a connective tissue

A

protect,support, and bind together

3
Q

simplified def.of a muscle tissue

A

produces movement

4
Q

simplified def. of a nervous tissue

A

recieve stimuli and conduct impulses

5
Q

describr epithelial tissue

A

Lining or a covering. covers all free body surfaces, covers and lines all organs has no blood supply, Avascular Anchored by a basement membrane classified by shape and number of cell layers functions are protection,absorbtion,diffusion,secretion and lubrication

6
Q

what structure does epithelial cells do not cover

A

ends of bones

7
Q

name and describe the 3 types of cell layers

A

simple- 1 layer striated- multiple layers pseudostriated- cells that appeared to be striated but are not

8
Q

name the the different shapes of tissue

A

Squamas Cuboidal Columnar

9
Q

describe squamas cells

A

flat, leaf-like cells(fried egg shaped) -one layer leaf like cells -found in lungs,lining blood vessels, eardrum Function: diffusion and filtration

10
Q

describe cuboidal tissues

A

-cube shaped, has shape and depth(central nucleus) -one layer of cuboidal cells -found in ducts,tubules of the kidneys,opening on the inside of the tube called the lumen -also found on the surface of ovaries and ducts of some glands

11
Q

describe Columnar tissues

A

-long tall column like cells(nucleus closer to basement membrane, usually in a stragiht line) -one layer of column like cells -white goblet cell(mucous producing cell) w/in columnar cells Function: Absorbtion Found in digestive system, portion of respiratory tract

12
Q

describe pseudostratified epithelial

A

-cells appeared to be stratified bu actually aren’t,NOTE nuclei tha tare at diff. level -NOTE the brush border of cilia along the top of the cells -found mainly in respiratory tract, cilia used for devris out of lungs

13
Q

describe Transitional Epithelium

A

-squamous cells that must stretch and shrink -appears stratified when relaxed -found specifically in the urinary bladder

14
Q

describe connective tissue

A

-most abundant tissue in the body -a connective tissue consists of “cells in a Matrix” Functions: connects, supports,frames,fills spaces,stores fat,makes blood cells

15
Q

matrix

A

composed of fibers and a ground substance. The ground substance can be fluid, gel-like, or solid. Fibers are elastic,collagen, or reticular Functions: Connect,supports,frames,fills spaces, stores fat,makes blood cells

16
Q

name the cell 3 types

A

Fibroblast Mast cells macrophage

17
Q

fibroblast

A

large star shaped cell which produces intercellular matrix. This matrix is mostly the protein collagen

18
Q

Mast cells

A

found near blood vessels,aid in inflammatory response and prevent blood clots

19
Q

macrophage

A

phagocyte attached to fibroblasts -a phagocyte is a cell capable of gulfing bacteria and other loose particles

20
Q

name the 3 types of connective tissue

A

areolar adipose dense connective

21
Q

what type of tissue contains loosely woven fibers and is flexible?

A

loose connective tissue

22
Q

Areolar tissue

A

-found in the hypodermis -contains loosely woven elastic and collagen fibers

23
Q

adipose tissue

A

-functions in fat storage -cells in adipose have very little matrix between them -the cells contain a large amount of fat that pushes all cells organelles to the edge of the cell

24
Q

dense connective tissue

A

contains closely packed fibers -dense regular connective tissue -tendons and ligaments -dense irregular connective tissue -found in the dermis of the skin. Fibers are irregularly arranged

25
Q

tendons connect ____to____ ligaments connects _____to____

A

tendons connect muscle to bone ligaments connect bone to bone

26
Q

describe blood cells

A

note the RBC. they have a white center where the nucleus was removed the white blood cells with the multi-lobed nuclei

27
Q

Bone cells

A

note the osteons that look like key rings

osteocytes- (inside their lacuna) are at the center of each osteon

28
Q

describe cartilage

A

chondrocytes within their lunca

intercellular matrix here is a hard gel like substance

29
Q

describe adipose cells

A

contain mostly fat with their nuclei pushed to the edgesof each cell

very little intercellular matrix

30
Q

describe muscle tissue

A

used to produce movement

smooth-found in walls of hollow organs, such as digestive system,respiratory tract

cardiac- found in heart, involuntary muscle

skeletal- found attached to skeleton. voluntary movement

31
Q

name the 3 types of cells that fall under muscle tissue

A

cardiac

smooth

skeletal

32
Q

describe nuervous tissue(simplified)

A

nervous tissue used for impulse conduction

found in brain, spinal cord, nerves

glial cells support helper cells for the neuron