Types of Cells

Question 1

simplified definition of an epithelial tissue

Answer 1

lines and covers surfaces

Question 2

simplified def. of a connective tissue

Answer 2

protect,support, and bind together

Question 3

simplified def.of a muscle tissue

Answer 3

produces movement

Question 4

simplified def. of a nervous tissue

Answer 4

recieve stimuli and conduct impulses

Question 5

describr epithelial tissue

Answer 5

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

Question 6

what structure does epithelial cells do not cover

Answer 6

ends of bones

Question 7

name and describe the 3 types of cell layers

Answer 7

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

Question 8

name the the different shapes of tissue

Answer 8

Squamas Cuboidal Columnar

Question 9

describe squamas cells

Answer 9

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

Question 10

describe cuboidal tissues

Answer 10

-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

Question 11

describe Columnar tissues

Answer 11

-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

Question 12

describe pseudostratified epithelial

Answer 12

-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

Question 13

describe Transitional Epithelium

Answer 13

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

Question 14

describe connective tissue

Answer 14

-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

Question 15

matrix

Answer 15

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

Question 16

name the cell 3 types

Answer 16

Fibroblast Mast cells macrophage

Question 17

fibroblast

Answer 17

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

Question 18

Mast cells

Answer 18

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

Question 19

macrophage

Answer 19

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

Question 20

name the 3 types of connective tissue

Answer 20

areolar adipose dense connective

Question 21

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

Answer 21

loose connective tissue

Question 22

Areolar tissue

Answer 22

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

Question 23

adipose tissue

Answer 23

-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

Question 24

dense connective tissue

Answer 24

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

Question 25

tendons connect ____to____ ligaments connects _____to____

Answer 25

tendons connect muscle to bone ligaments connect bone to bone

Question 26

describe blood cells

Answer 26

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

Question 27

Bone cells

Answer 27

note the osteons that look like key rings

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

Question 28

describe cartilage

Answer 28

chondrocytes within their lunca

intercellular matrix here is a hard gel like substance

Question 29

describe adipose cells

Answer 29

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

very little intercellular matrix

Question 30

describe muscle tissue

Answer 30

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

Question 31

name the 3 types of cells that fall under muscle tissue

Answer 31

cardiac

smooth

skeletal

Question 32

describe nuervous tissue(simplified)

Answer 32

nervous tissue used for impulse conduction

found in brain, spinal cord, nerves

glial cells support helper cells for the neuron