Anatomy + Physiology- Unit 2

List the six levels of structural organization in the human body. 

Chemical, Cellular, Tissue, Organ, Organ System, and Total Organ System.

What is the first level and what exists there? 

the first level is the most simple level out of the six. In the first level, a particle called a molecule exists.

What do bonded molecules form?

they form cells.

Define the term cell. 

A cell is the basic structural unit that creates all living things.

How do cells communicate? 

they signal each other in order to communicate.

Define the term tissue. 

formed Tissue are formed from cells of the same type join to preform a common task.

What is formed when tissue works together? 

an organ

Define what an organ is and give two examples other than the heart and lungs. 

An organ is a part of the body that preforms a specific and important function.

What is an organ system? 

a group of 2 or more organs that work together to complete an important job.

How is tissue formed? 

tissues are formed when cells of the same type come together to preform a common task

What is tissue responsible for? 

secretion, movement, strength, excretion, and communication

List the four major groups of tissue. 

nervous tissue, epithelial tissue, muscle tissue and corrective tissue

What is the function of nervous tissue? 

they carry messages throughout the body to direct its activities.

Name the two categories of nervous tissue

Neurons and Neuroglia

Neurons

hey transmit electrical impulses and establish a communication system within the body

Neuroglia

Supports and protects neurons, among many other tasks.

What does epithelial tissue cover?

it protects your body from moisture loss, bacteria, and internal injury.

What is the function of muscle tissue? 

muscle tissue contracts to allow the body to move.

List three types of muscle tissue and their functions.

skeletal, cardiac, and smooth

skeletal tissue

supports the body in movements

cardiac tissue

helps the heart to contract

smooth tissue

inside of hollow organs

What is the function of connective tissue? 

provides structure and support for the body.

List the six types of connective tissue.

Adipose tissue (fat), Blood, Loose Connective tissue, bone

, cartilage, and Fibrous connective tissue

Fibrous connective tissue

this tissue is strong, dense tissue that is used to connect muscle and bone to bone

cartilage

Is used as a physical shock absorber and reduces friction

bone

Provides support and protection. it also allows the body to move

Loose Connective tissue

connects epithelial tissues to underlying tissue. it also helps stop pathogens from entering the body's bloodstream

Blood

a transportation mechanism for important chemicals in the body

Adipose tissue (fat)

serves as an energy stockpile, padding and thermal insulation for the body