Exam 1

Question 1

Cell Junction types

Answer 1

Anchoring, communicating, occluding

Question 2

Adherens

Answer 2

make adhesion belt, keep tissues from separating and stretch and contract
Connects multiple cells together

Type of anchoring junction

Question 3

Cadherin

Answer 3

Glycoprotein that forms the belt-like plaque

Question 4

Desmosome

Answer 4

Act as spot welds between cells
Also use cadherin glycoprotein
Common in skin and muscle

Type of anchoring junction

Question 5

Hemidesmosome

Answer 5

Half welds that join cells to a basement membrane

Type of anchoring junction

Question 6

Gap junctions

Answer 6

Pores (connexons) that allow small substances to pass between cells
Common in cardiac and smooth muscle tissue
Seal like safety hatch over sick cell to avoid mass cell death

Type of communicating junction

Question 7

Ions can pass between cells using what type of junction

Answer 7

Gap junctions

Question 8

Tight junctions

Answer 8

Found where leak proof seal is needed between adjacent cells

Type of occluding junction

Question 9

Where are tight junctions found

Answer 9

Bladder and stomach

Question 10

4 basic tissue types

Answer 10

Connective, epithelial, muscle, nervous

Question 11

Epithelial tissue

Answer 11

Covers body surfaces, forms glands, lines hollow organs, body cavities and ducts

Question 12

Function of epithelial tissue

Answer 12

Protection, absorption, filtration, excretion, secretion, and sensory reception

Question 13

Layer types of epithelial tissue

Answer 13

Simple, stratified, pseudo stratified

Question 14

Cell shape of epithelial tissue

Answer 14

Squamous, cuboidal, columnar

Question 15

Connective tissue function

Answer 15

Protection, support, and binding of organs

Question 16

Adipose (fat)

Answer 16

A connective tissue type that stores energy

Question 17

Connective tissues of blood

Answer 17

RBC, WBC, platelets

Question 18

Muscle tissue

Answer 18

Generates physical force needed to make body structures or substances move
Also generate heat that can be used by the body

Question 19

Nervous tissue

Answer 19

For internal communication, to detect changes in the body, and respond

Question 20

Nervous tissue found

Answer 20

Brain, spinal chord, nerves

Question 21

Muscle tissue found

Answer 21

Skeletal, cardiac, smooth

Question 22

Epithelial tissue found

Answer 22

Lining of digestive tract organs and other hollow organs
Skin surface

Question 23

Connective tissue found

Answer 23

Bones, tendons, fat and other soft padding tissue

Question 24

Which layer does epithelial tissue derive from

Answer 24

Endoderm, mesoderm, ectoderm

Question 25

Where does CT and muscle tissue derive from

Answer 25

Mesoderm

Question 26

Where does nervous tissue derive from

Answer 26

Ectoderm

Question 27

Epithelium

Answer 27

Used to line surfaces and form protective barriers Also used in secreting mucus, hormones, and other substances

Question 28

Types of surfaces for epithelia

Answer 28

Apical - facing surface Basal - attached to membrane Lateral - attached to other cell

Question 29

What makes up the basement membrane

Answer 29

Basal lamina and reticular lamina

Question 30

Basal lamina

Answer 30

Formed by secretion from the basal layer of epithelium

Question 31

Reticular lamina

Answer 31

Formed by underlying CT secretion

Question 32

Squamous

Answer 32

Flat, wide

Question 33

Cuboidal

Answer 33

Cube like shape

Question 34

Columnar

Answer 34

Rectangular shape

Question 35

Simple

Answer 35

One later, all in contact w basement membrane

Question 36

Pseudo stratified

Answer 36

Appears to have layers but all cells go from apex to base

Question 37

Stratified

Answer 37

Two or mor layers, only one basal layer in contact w basement membrane

Question 38

Transitional epithelium

Answer 38

Able to change shape

Question 39

Simple squamous epithelium function

Answer 39

Diffusion and filtration where protection is not important Secretes lubricating substances in serosae

Question 40

Simple squamous epithelium location

Answer 40

Kidney glomeruli, air sacs of lungs, lining of heart, blood vessel, lymphatic vessels, lining of ventral body cavity

Question 41

Simple cuboidal epithelium function

Answer 41

Secretion and absorption

Question 42

Simple cuboidal location

Answer 42

Lines ducts and sweat glands

Question 43

Simple columnar epithelium function

Answer 43

Absorption and secretion of mucus enzymes, and other substances Cilia, microvilli, goblet cells

Question 44

Simple columnar epithelium location

Answer 44

Non ciliated: Digestive, tract, gallbladder, excretory, ducts Ciliated: small bronchi, uterine tubes, and some regions of the uterus Digestive tract

Question 45

Pseudostratified, columnar, epithelium function

Answer 45

Secrete substances, movement of mucus, buy ciliary action

Question 46

Pseudostratified columnar epithelium

Answer 46

Non ciliated: Male, sperm, carrying ducts and ducts of large glands Ciliated : upper respiratory tract

Question 47

Stratified squamous function

Answer 47

Protects underlying tissue and areas subject to abrasion

Question 48

Stratified squamous location

Answer 48

esophagus, mouth, vagina, epidermis of the skin Outer layers of the skin

Question 49

Stratified cuboidal location

Answer 49

Sweat, mammary, and salivary glands

Question 50

Stratified, columnar location

Answer 50

Ocular conjunctiva of the eye, pharynx uterus, salivary glands

Question 51

Transitional epithelium function

Answer 51

Able to change shape, depending on stretch of the tissue

Question 52

Transitional epithelium location

Answer 52

Bladder, uterus, parts of urethra