Human body systems test

what are five levels of structural organization in order from largest to smallest?

Organisms, organ systems, organs, tissues, cells

What is the importance of homeostasis?

Maintains optimal conditions for enzyme action throughout the body, as well as all cell functions

Give an example of an organ and an organ system.

Organs: Lungs, heart, brain

Organ systems: Respiratory system, Nervous system, Muscular system, Skeletal system

Endocrine system

production and secretion of hormones for regulation of the body

Muscular system

movement and stabilization

Nervous system

collect, process, and respond to sensory information; control voluntary and involuntary actions

Skeletal system

support, protection for internal organs, and aids in movement

What is the importance of the skeletal system?

It supports and protects the organs.

What are the two different kinds of bones in our body?

compact and spongy

What two systems work together to allow our body to move?

muscular and skeletal

How does your nervous system take on information?

neurons

Example of voluntary control:

running; hitting someone

Example of involuntary control:

blinking; breathing

What is the first line of defense of the human body?

skin

WHat is the second line of defense of the human body?

the immune system

What does the liver do in the human body?

It filters blood and removes waste.

What is the importance of the excretory system?

It gets rid of waste.

How are the lungs a part of the excretory system?

They help eliminate carbon dioxide.

What is responsible for making white blood cells?

bone marrow

What are three types of muscle cells?

Skeletal muscle, smooth muscle, cardiac muscle

List the three main types of blood.

Arteries, Veins, Capillaries

What is the function of the lymphatic system?

It keeps fluid levels in balance and defends the body against infection. Produces white blood cells.

Arteries function:

carry blood away from the heart

Veins

carry blood to your heart

Capillaries

connects arteries and veins

Skeletal muscle location:

attached to bones or tendons

Smooth muscle location:

the walls of hollow visceral organs

Cardiac muscle location:

in the heart