Epithelium and muscle tissue

Lab anatomy 1

Tissue

covers the body surfaces, lines cavities, and forms glands. It protects, secretes, absorbs, and filtrates.

Apical

Top/ Apex free (unattached surface or ledge

Basal membrane

Basement membrane

Basement membrane

lower surface (attached) edge (basal lamina/ layer and reticular lamina)

Simple depth

one cell deep/layer

Stratified depth

2+ cells deep

Squamous shape

flat

Cuboidal shape

squarish

Columnar

more taller than is wide

Simple Squamous Epithelium

Simple squamous epithelium location and function

Located in lining of blood vessels and cavities. It filtrates and diffuses

Simple Cuboidal epithelium

Simple Cuboidal epithelium function and location

Located in liver, kidneys, and glands. It secretes and absorbs.

Simple Columnar Epithelium

Simple Columnar epithelium function and location

Located at digestive tract and it absorbs and does some secretion.

Stratified Squamous epithelium

Stratified Squamous Epithelium function and location

Located on skin, esophagus, and mouth. It protects.

Define straited muscle

Excitable and contractile

Non-straited muscle

involuntary muscle made of spindle shaped cells.

Voluntary

enables intentional movements

involuntary

enables non intentional movement

Intercalated discs

discs found in cardiac muscle. Play a role in contractions of the heart.

Skeletal muscle specimen

Straited voluntary multinudie

Cardiac muscle specimen

Straited involuntary discs

Smooth Muscle specimen

Nonstriated involuntary uninucleate

Skeletal muscle

Skeletal muscles function and location

Attached to bones and moves bones and skin

Cardiac muscle

Cardiac muscle’s location and function

Located at the heart and pumps blood

Smooth Muscle

Smooth muscles function and location

Located at walls of hollow organs, blood vessels, intestines, and stomach. It moves material through hollow organs.