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Body Organization Bones/Muscles Dig Sys Resp Sys Circ Sys

What is a group of cells doing a similar

job called?

A tissue.

What is an organ?

A group of tissues working together.

List the body organization from simplest to most

complex.

Cell - Tissue - Organ - Organ System - Organism

Name four organ systems.

Name four body systems…

What is homeostasis?

The body’s tendency to keep an internal balance.

Name three bones by their scientific names?

Name them bones!

Name three things that the skeletal system does

for us?

ProtectionSupport

MovementBlood cell production

Stores minerals

What is the difference in appearance between skeletal and smooth muscle tissue?

Skeletal is striated (striped) smooth isn’t.

What is the difference between ligaments and tendons?

Ligaments connect bone to bone.Tendons connect muscle to bone.

What two body systems compbine to help you move your

arms and legs?

Skeletal and Muscular(review joints)

What organs (in order) are part of the digestive

system?

Mouth - Esophagus - Stomach - Small Intestine - Large Intestine

What is the job of the digestive system?

To break down food so it can be ansorbed by the body.

Where does most absorption occur in the digestive system?

The villi of the small intestine

What is an enzyme? What does it do?

It is a chemical that helps to break nutrients down.

What is peristalsis?

Wave like contractions created by smooth muscle which helps to

move food through the alimentary canal.

Name four parts of the respiratory system?

Nose- Trachea- Bronchus- Bronchial Tube- Alveoli

What is the epiglottis?

A flap that covers the traches during swallowing

C6H12O6 + O2 --> Energy + CO2 + H2O

What is this and where does it occur?

Respiration and it occurs in the mitochondria of our cells.

Describe what happens in the alveoli.

These are the tiny air sacs where blood drops off CO2 and

picks up O2. (Respiratory/Circulatory)

Describe the parts of a well run experiment on breathing.

Problem - Hypothesis - Variables (depen/indepen) - Data Table -

Graph

What is the difference between an artery and a vein?

A - Away!

What is a capillary and why are they so important?

Tiny blood vessels that allow gases like O2 and CO2 to exchange.

Describe how digestion gets food into the blood?

From mouth to villi please.

What two body systems come together at the alveoli?

Circulatory and Respiratory

What is the flow of blood through the

heart?

Rt artrium - Rt ventricle - out to lungs - Lt atrium - Lt Ventricle - out to body (through the Aorta)