A tissue is defined as:

• A group of similar cells that perform a specific function

• A single cell that performs all functions

• A collection of organs working together

• A fluid that transports nutrients in the body

Tags

NGSS.MS-LS1-3

What are the four main types of tissue?

• Epithelial, Connective, Muscle, Nervous

• Bone, Cartilage, Blood, Fat

• Skin, Bone, Blood, Muscle

• Epidermal, Dermal, Vascular, Ground

Epithelial Tissues Key Characteristics: Cells are ________________ __________________ together.

• tightly packed

• loosely scattered

• randomly arranged

• widely separated

Epithelial tissue Key Characteristics: Attached to underlying connective tissue by a ________________ __________________.

• basement membrane

• epithelial layer

• connective sheath

• supportive matrix

Epithelial Tissue Key Characteristics: ________ blood supply (avascular).

• Lacks (none)

• Has abundant

• Has moderate

• Has excessive

Epithelial tissues are named based on their _______________ and _______________.

• shape, number of layers

• function, color

• location, size

• origin, density

Simple Squamous Epithelium: single layer of flat/thin cells. Function: ________________________________

• Diffusion and filtration

• Absorption of nutrients

• Secretion of hormones

• Protection against abrasion

Simple Cuboidal Epithelium: single layer of cuboidal (square-shaped) cells. Function: ___________________________________________

• Secretion and absorption

• Protection against mechanical stress

• Transport of oxygen

• Production of hormones

What do goblet cells do?

• Secrete mucus

• Absorb nutrients

• Produce insulin

• Transmit nerve impulses

What do microvilli do?

• Increase surface area for absorption

• Produce hormones

• Store genetic information

• Transport oxygen in blood