The Digestive
System
Circulatory and Respiratory Systems
The Skeletal
System
Excretory System
The Muscular
System
100

This is a mixture of water, mucus, and a digestive enzyme.

What is saliva?

100

The upper chamber of the heart

What is the atrium?

100

Humans have 206 of these

What are bones?

100

This organ filter and regulates the composition of blood.

What is kidneys?

100

Threadlike structures that make up muscle fiber

What is myofibrils?

200

This flap of tissue prevents food from entering the trachea.

What is the epiglottis?

200

These blood cells help defend the body against disease

What are white blood cells or leukocytes?

200

These bones are hollow and cylindrical and found in limbs

What are long bones?

200

This is the most common waste produced by the liver.

What is urea?

200

Muscles that bend joints

What are flexors?

300

The fluid that carries out chemical digestion in the stomach.

What is Gastric fluid?

300

The first phase of a heart beat when ventricles contract

What is the systole phase

300

Red or yellow soft tissue contained in many bones

What is bone marrow?

300

This is surrounded by a capillary bed capillaries then split into the glomerulus which receive blood from renal artery.

What is Bowman's capsule?

300

The point where muscle attaches to moving bone

What is the insertion?

400
The process by which food is broken into molecules that the body can use

What is digestion?

400

A series of pressure wavers within an artery caused by contractions of the left ventricle

What is a person's pulse

400

Located near the ends of long bones where bone elongation takes place

What is the epiphyseal plate?

400

This excretory organ that is part of the integument system removes wastes by sweat.

What is skin?

400

Temporary lack of oxygen availability to muscles that leads to lactic acid build up

What is oxygen debt?

500

Small openings that dot the mucous membrane

What are gastric pits.

500

The trachea branches into two of these that lead to each lung

What are bronchi?

500

This occurs when the immune system begins to attack body tissues

What is rheumatoid arthritis?

500

This makes up 2/3 of the kidney.

What is renal medulla?

500

These overlap in a relaxed muscle

What are the actin and myosin filaments?

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