4 basic tissues that all body structures are made up of?

epithelial, connective, muscle, nerve/nervous

What are the types of epithelial tissue based on the cell layer?

simple, stratified, and pseudostratified

What does simple epithelial tissue mean?

composed of a single layer

What does stratified epithelial tissue mean?

composed of two or more layers of cells

What does pseudostratified epithelial tissue mean?

single layer that looks like more than one (it's because of the varying heights that give that appearance)

What are the types of epithelial tissue based on the shape of the cells?

squamous epithelial tissue, cuboidal epithelial tissue, and columnar epithelial tissue

What does squamous epithelial tissue mean/shape?

consists of extremely thin cells that resemble the scales of a fish (flat cells)

What does cuboidal epithelial tissue mean/shape?

contains cells that appear square in cross-section but are marginally longer than they are wide (cube-shaped)

What does columnar epithelial tissue mean/shape?

consists of elongated cell involved in absorption of materials (column-shaped)

What is the limbus?

transition zone between the cornea and sclera

How big is the limbus?

1-2 mm wide

What is another name for red blood cells?

Erythrocytes

What do red blood cells do?

carry oxygen

What is another name for white blood cells?

Leukocytes

What do white blood cells do?

engulf foreign substances like plaque and bacteria

Which muscle tissue is Multinucleated?

skeletal muscle

What is the location of the cardiac muscle?

Heart only

What is the function of the cardiac muscle?

continuously pumps blood

How do visceral muscles look?

spindle-shaped, non-striated, smooth, single nucleus

How many rods and cones are in the retina?

120 million rods and 6-7 million cones

What are dendrites?

receive the sensory input

What are ligaments?

connect bone to bone

What are tendons?

connect muscle to bone

What is the main function of the sclera?

protect and/or support the eye

How much of the sclera covers the posterior globe?

5/6ths

Thickness of the sclera toward the back is?

thicker

What is the anterior portion of the sclera covered by?

conjunctiva

Tenons capsule is also known as..

Bulbar Sheath

What is the Tenon's Capsule?

Wraps the outer surface of the eyeball from the optic nerve to the corneal limbus

What shape does the Tenon's capsule make?

shaped like a sling

How many layers does the sclera have?

3 layers

What is another name for the Sclera Stroma?

Sclera Proper

What is the inner layer of the sclera?

Lamina Fusca

What is the middle layer of the sclera?

Sclera Stroma- Proper

What is the outer layer of the sclera?

Episcleral

What is the Lamina Cribosa?

Crosshatching network of collagen fibers that support the optic nerve fibers

What is the Scleral Spur?

A ridge of the sclera from which ciliary muscle fibers start

What is a Pinguceula?

A small patch of yellow tissue that bulges out of the conjunctiva

What is a Pterygium?

It is a larger, wedge-shaped growth that can expand to the cornea and block vision

What is a nevus?

brown spot and/or freckle on the eye

What is a subconjunctival hemorrhage?

This is a broken blood vessel that has leaked between the sclera and the conjunctiva just underneath the white of your eye