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Digestive/Excretory/Respiratory/Circulatory/Nervous Systems
N/A
36
Science
7th Grade
02/27/2012

Additional Science Flashcards

 


 

Cards

Term
Alvoli
Definition

Tiny sacs of lung tissue specialized for the movement of gases between air and blood.

Term
Anus
Definition

A muscular opening at the end of the rectum through which waste material is eliminated from the body.

Term
Aorta
Definition

The largest artery in the body; receives blood from the left ventricle.

 

Term
Artery
Definition

A blood vessel that carries blood away from the heart.

Term
Atrium
Definition

Each of the two upper chambers of the heart that receives blood that comes into the heart.

Term
Brain Stem
Definition

The part of the brain that lies between the cerebellum and spinal cord and controls the body’s involuntary actions.

Term
Bronchus (Bronchi)
Definition
The passages that direct air into the lungs.
Term
Capillary
Definition

A tiny blood vessel where substances are exchanged between the blood and the body cells.

Term
Cerebellum
Definition

The part of the brain that coordinates the actions of the muscles and helps maintain balance.

Term
Cerebrum
Definition

The part of the brain that interprets input from the senses, controls movement, and carries out complex mental processes.

Term
Diaphragm
Definition

A large, dome-shaped muscle that plays an important role in breathing.

Term
Esophagus
Definition

A muscular tube that connects the mouth to the stomach.

 

Term
Gall Bladder
Definition

The organ that stores bile after it is produced by the liver.

Term
Heart
Definition

A hollow, muscular organ that pumps blood throughout the body.

Term
Kidney
Definition

A major organ of the excretory system which removes urea and other wastes from the blood.

Term
Large Intestine
Definition
The last section of the digestive system, where water is absorbed into the bloodstream and the remaining material is eliminated from the body.
Term
Larynx
Definition
The voice box; located in the top part of the trachea, underneath the epiglottis.
Term
Liver
Definition

The largest organ in the body; it plays a role in many body processes.

Term
Lung
Definition

The main organs of the respiratory system.

Term
Nephron
Definition

Small filtering structure found in the kidneys that removes wastes from blood and produces urine.

Term
Neuron
Definition

A cell that carries information through the nervous system.

 

Term
Pancreas
Definition
A triangular organ that lies between the stomach and first part of the small intestine.
Term
Pharynx
Definition
The throat; part of both the respiratory and digestive systems.
Term
Rectum
Definition

The end of the large intestine where waste material is compressed into a solid form before being eliminated.

Term
Red Blood Cell
Definition

A cell in the blood that takes up oxygen in the lungs and delivers it to cells elsewhere in the body.

Term
Skin
Definition
The thin layer of tissue forming the natural outer covering of the body of a person or animal.
Term
Small Intestine
Definition
The part of the digestive system in which most chemical digestion takes place.
Term
Spinal Cord
Definition
The thick column of nerve tissue that links the brain to most of the nerves in the peripheral nervous system.
Term
Stomach
Definition

A J-shaped, muscular pouch located in the abdomen.

Term
Trachea
Definition
The windpipe; a passage through which air moves in the respiratory system.
Term
Ureter
Definition
A narrow tube that carries urine from one of the kidneys to the urinary bladder.
Term
Urethra
Definition

A small tube through which urine flows from the body.

Term
Urinary Bladder
Definition
A sacklike muscular organ that stores urine until it is eliminated from the body.
Term
Vein
Definition

A blood vessel that carries blood back to the heart.

Term
Ventricle
Definition
Each of the two lower chambers of the heart that pumps blood out of the heart.
Term
White Blood Cell
Definition

A blood cell that fights disease.

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