Bio 201 Lab: Histology

Front 1

These cells cover body surfaces, are the external/internal lining of cavities and almost always lie on a layer of loose connective tissue.

Back 1

Epithelial cells

Front 2

The hollow intereriors of tubules is called the ____.

Back 2

Lumen

Front 3

The layer of cells closest to the lumen is the ____.

Back 3

Apical Surface

Front 4

The deepest layer of cells is the ____.

Back 4

Basal Surface

Front 5

The layer of cells between the epithelium and connective tissue is called the ____.

Back 5

Basement membrane

Front 6

Flattened epithelial cells with disc-shaped nuclei are ____.

Back 6

Squamous

Front 7

Cube-shaped epithelial cells with prominent, round nuclei are ____

Back 7

Cuboidal

Front 8

Column shaped epithelial cells with oval nuclei are ____

Back 8

Columnar

Front 9

What is the function of simple squamous epithelium?

Back 9

Allows for rapid diffusion/osmosis

Front 10

Where would simple squamous epithelium be found?

Back 10

Veins/arteries, alveoli, glomerular apparatus

Front 11

What is the function of simple cuboidal epithelium?

Back 11

Absorption and secretion

Front 12

Where is simple cuboidal epithelium found?

Back 12

Gland ducts (salivary/mammary)

Front 13

What is the function of simple columnar epithelium?

Back 13

Secretion of mucus; movement of oocyte and sperm

Front 14

Where would ciliated simple columnar epithelium be found?

Back 14

Uterine tubes or large bronchioles

Front 15

Where would unciliated simple columnar epithelium be found?

Back 15

The lining of the digestive track

Front 16

What is the function of pseudostratified columnar epithelium?

Back 16

Secretion and propelling of mucous

Front 17

Where would pseudostratified columnar epithelium be found?

Back 17

respiratory tract; nasal cavity to bronchi

Front 18

What is the function of keratinized stratified squamous epithelium?

Back 18

resist abrasion; minimize water loss through skin; keep pathogens out

Front 19

Where is keratinized stratified squamous epithelium found?

Back 19

Epidermis

Front 20

What is the function of nonkeratinized stratified squamous epithelium?

Back 20

Resist abrasion and keep pathogens out

Front 21

Where would nonkeratinized stratified squamous epithelium be found?

Back 21

anal canal and vagina

Front 22

What is the function of stratified cuboidal epithelium?

Back 22

Sweat secretion; secretes ovarian hormones and produces sperm

Front 23

Where is stratified cuboidal epithelium found?

Back 23

Ovary follices; seminiferous tubules

Front 24

What is the function of transitional epithelium?

Back 24

Stretch to allow filling of the urinary tract

Front 25

Where is transitional epithelium found?

Back 25

Bladder

Front 26

What kind of muscle tissue is striated, voluntary and multinucleated?

Back 26

Skeletal muscle

Front 27

What kind of muscle tissue is striated, involuntary, mononucleated and has intercalated discs?

Back 27

Cardiac muscle

Front 28

What kind of muscle tissue is not striated, involuntary and mononucleated?

Back 28

Smooth muscle

Front 29

Short branched processes that receive signals from other cells and transmit the information to the soma are called?

Back 29

Dendrites

Front 30

The insulating layer around a nerve fiber is called the what?

Back 30

Myelin sheath

Front 31

Gaps between the myelin sheath are called what?

Back 31

Nodes of Ranvier

Front 32

In the CNS, gray matter is on the ____ and white matter is on the ____.

Back 32

outside/inside

Front 33

Gel-like matrix with different types of connective tissue fibers that wraps and cushions organs and connects epithelial tissue to underlying tissues is what?

Back 33

Areolar Tissue

Front 34

Where is areolar tissue located?

Back 34

Under epithelium

Front 35

Connective tissue that functions in metabolic fuel storage, thermal insulation and organ support/protection is what?

Back 35

Adipose tissue

Front 36

Where is adipose tissue located?

Back 36

Under the skin and within the abdomen

Front 37

A network of reticular fibers in loose ground substance that forms a soft internal skeleton to support other cell types is what kind of connective tissue?

Back 37

Reticular Tissue

Front 38

Where is reticular tissue found?

Back 38

Lymph organs

Front 39

What is the function of dense regular connective tissue?

Back 39

Bind bones together; resist stress

Front 40

Where is dense regular connective tissue found?

Back 40

Tendons and ligaments

Front 41

What is the function of dense irregular connective tissue?

Back 41

Withstand stress from unpredictable directions

Front 42

Where is dense irregular connective tissue found?

Back 42

Deep in the dermis; encapsulates organs

Front 43

What is the function of hyaline cartilage?

Back 43

Ease joint movement; hold airway open during respiration

Front 44

Where is hyaline cartilage found?

Back 44

Covers the end of long bones

Front 45

What is the function of elastic cartliage?

Back 45

Flexible elastic support; maintain shape

Front 46

Where is elastic cartliage located?

Back 46

External ear

Front 47

What is the function of fibrocartilage?

Back 47

Resist compression and absorb shock

Front 48

Where is fibrocartliage found?

Back 48

Inter-vertebral discs and menisci

Front 49

Small spider web looking canals that connect lacunae in bone are called what?

Back 49

Canaliculi

Front 50

Rings of the Haversian system are called what?

Back 50

Lamellae

Front 51

A central canal and its surrounding lamellae is called what?

Back 51

Osteon

Front 52

Canals that run longitudinally through long bones are called what?

Back 52

Central Canals

Front 53

RBC that have no nuclei and transport O2/CO2 are called what?

Back 53

Erythrocytes

Front 54

WBC that defend against infection are called what?

Back 54

Leukocytes