Shared Flashcard Set

Details

Supply and Transport Review
Supply and Transport Review
52
Science
7th Grade
04/13/2009

Additional Science Flashcards

 


 

Cards

Term
Five Body Systems
Definition

 

1)  Digestive

2)  Circulatory

3)  Digestive

4)  Lymphatic

5) Respiratory

Term
The five body systems work together to . . .
Definition

- supply nutrients and oxygen

-  transport waste away

Term
Homeostasis
Definition
body systems working together to maintain an internal balance
Term

The main function of the

Digestive System

Definition
digestion, absorption and elimination of solid waste.
Term
Digestion
Definition
the breaking down of food into smaller parts
Term
Mechanical and Chemical digestion begin in the ___________. 
Definition
mouth
Term
____________ adds chemicals in the mouth that begin to break down the food.
Definition
Saliva
Term
Peristalsis
Definition
The process of muscles contracting and pushing food down the esophagus and through the stomach.
Term
Most food is absorbed into the blood stream through the ______  ____________.
Definition
small intestine
Term
Villi
Definition
small finger like structures in the small intestines to allow quick absorption of nutrients.
Term
Most water is re-absorbed in the _______________.
Definition
large intestine
Term
The ______  _________ contain bacteria which are responsible for making some vitamins
Definition
Large intestine
Term
Enzymes
Definition
are responsible for chemical digestion (pepsin, hydrochloric acid).
Term

The main function of the

Circulatory System

Definition

pumps blood to maintain life by

 supplying oxygen,

removing carbon dioxide,

and fighting infection

Term
4 Chambers of the Heart
Definition

Left Ventricle

Right Ventricle

Left Atrium

Right Atrium

Term
3 types of blood vessels in order
Definition

arteries

capillaries

veins

Term
The left side of the heart has thicker muscles to allow . . .
Definition
very strong contraction force (to push the blood through)
Term
Blood components
Definition

plasma

platelets

red blood cells

white blood cells

Term
Plasma
Definition
the liquid that carries cells
Term
Platelets
Definition
work with fibrin to stop bleeding by creating nets across the capillaries
Term
Red Blood Cells
Definition
contain hemoglobin which binds to oxygen and carbon dioxide gases
Term
White Blood Cells
Definition
fight infection and disease in your body
Term
The exchange of food and gases occurs in the ___________.
Definition
Capillaries
Term
Capillaries
Definition
one cell thick
Term
Blood travels toward the heart through________.
Definition
veins
Term
Veins
Definition
Contain valves which prevent back flow of blood.
Term
Blood travels away from the heart in  __________.
Definition
Arteries
Term
Blood cells are mainly produced in  ____________.
Definition
bone marrow
Term
4 main types of blood
Definition
A, B, O, AB
Term

The main function of the

Lymphatic System

Definition
to return extra fluid or cells to the blood.
Term
Lymph nodes
Definition
small knobs of tissue throughout the body which filter lymph.
Term
Lymph
Definition
fluid outside of the circulatory system
Term
_______   _______ enlarge when the body is fighting infection.
Definition
Lymph nodes
Term

The main function of the

Respiratory System

Definition
Uses the lungs as the main organ to take in oxygen for cells and removes carbon dioxide from the cells.
Term
Respiration
Definition
The process that cells use to make energy from oxygen and glucose.
Term
Breathing
Definition
The process of inhaling or exhaling air into the lungs through the mouth.
Term
Pharynx
Definition
This space is also shared with the digestive system.
Term
Larynx
Definition
Voice box or windpipe or tube to the lungs.
Term
Alveoli
Definition
Small sacs in the bronchi, exchanges of gases occur here.
Term
Air travels through the nose, then
Definition

down the pharynx,

past the larynx,

into the trachea,

into the brochi,

which branches into the alveoli

Term
Diaphragm
Definition
Dome shaped muscle under the chest cavity.  Exhaling and inhaling is a result of this.
Term
Inhaling
Definition
Contracting/going down of the diaphragm
Term
Exhaling
Definition
Relaxing of the diaphragm
Term

The main function of the

Excretory System

Definition
removes waste (mostly liquid) from the body.
Term

Blood is filtered through the ___________

to remove poisons and wates from the body.

Definition
kidneys
Term
Inside the kidneys are microscopic filters called  _______________.
Definition
nephrons
Term
Waste from the capillaries enters the kidneys through the _______________.
Definition
Nephrons
Term
__________ forms in nephrons.
Definition
Urine
Term
Urine travels down the _______________ to the bladder.
Definition
ureter
Term
Urine is excreted through the opening of the ____________.
Definition
Urethra
Term
The _________ is also an organ of the excretory system as it helps remove salt and water through pores.
Definition
skin
Term
________ are important in helping maintain the salt and fluid levels in your body.
Definition
Kidneys
Supporting users have an ad free experience!