Unit 1- Tissues (Anatomy)

This contains cells, platelets, and plasma

Blood

What are the four major types of tissues?

Epithelial, connective, muscle, nervous

Some epithelial cells contain additional features such as cilia or goblet cells. What are these structures and what is their function?

Goblet cells secrete mucous and the cilia are hair-like structures on the cells which move to help propel the mucous layer

Muscle (function)

Movement

The upper layer of your skin is lined with this type of tissue

Stratified Squamous

Connective (function)

Supports

Why is it better for air sacs in the lungs to be composed of simple squamous tissue than stratified squamous tissue

Air sacs are lined with simple squamous which better allows materials such as oxygen and carbon dioxide to diffuse across the cell easier

Nerves (function)

Control

Epithelial (function)

Covers

Can transport materials like oxygen and wastes

blood

Which of the following statements about epithelial tissues is true? a.Epithelial tissue has no blood vessels b. Epithelial cells reproduce slowly c. Epithelial cells are nourished by substances diffusing from connective tissue d. Injuries to epithelial tissue heal rapidly as new cells replace damaged ones.

c. Epithelial cells are nourished by substances diffusing from connective tissue d. Injuries to epithelial tissue heal rapidly as new cells replace damaged ones.