Human systems - Respiratory, Circulatory, Excretory

Human systems - Respiratory, Circulatory, Excretory

The respiratory system - gas excchange

major organs - nose, trachae, bronchi, lungs, alveoli

Respiratory system

• Inhalation occurs due to the diaphragm contracting; exhalation occurs when the diaphragm relaxes

• gas exchange occurs in the alveoli by simple diffusion

Multiple Choice

What is the muscle that allows you to breathe involuntarily?

• diaphragm

• heart

Multiple Choice

What is the main function of the Respiratory System?

• blood transports nutrients and gases through the body

• exchanges gases between the body and the environment

• breaks down food to provide energy

• removes solid, liquid and gas waste from the body

Multiple Choice

Which body system is shown here?

• circulatory system

• respiratory system

Circulatory System

Transport of nutrients and gases

Major organs - heart, arteries, veins and capillaries

Parts of the Circulatory system

• The heart - left and right atrium; left and right ventricle

• lungs, vena cava, pulmonary artery, pulmonary vein, aorta,

• Arteries - carry oxygenated blood away from the heart to the rest of the body

• veins - carry deoxygenated blood from the body to the heart for reoxygenation

• capillaries - are tiny blood vessels connecting arteries to veins. These blood vessels carry oxygen and nutrients to individual cells throughout the body

Multiple Choice

What is the main function of the heart ? 

• The heart circulates blood and oxygen throughout the body.
  
• The heart is the control centers for all body activities.
• The heart gets rid of the wastes in your body produced by homeostasis. 
• The heart adds oxygen to the blood

Multiple Choice

When we breathe out the diaphragm...

• Contracts

• Relaxes

Multiple Choice

When we breath in the diaphragm...

• Contracts

• Relaxes

Multiple Choice

What function does the heart do?

• Protects organs and produces red blood cells.
• Generates heat.
• Breaks down food into nutrients.
• The heart is a pump, which moves the blood. The arteries and veins are the pipes where the blood flows.

Multiple Choice

Which is the correct definition of the Circulatory system?

• The system fights disease so the body stays healthy.
• The system that circulates blood and oxygen through the body, consisting of the heart,blood vessels,and blood.
• Breaks down food into smaller pieces and absorbs those nutrients into the body.
• Provides shape and structure for the body.

The Excretory system

•Function: Filters wastes, toxins, and excess nutrients/water from circulatory system for removal from the body.

Excretory System

• •Major Organs:

  •Kidney

  •Urethra

  •Ureter

  •Bladder

• •Blood enters the kidney

  •Nephrons in the kidney filter waste products out of the blood

  •Wastes leave kidney through they ureter

  •Urine accumulates in the bladder

  •Urine leaves the body through the urethra.

Multiple Choice

What is #3?

• Kidney
• Ureters
• Bladder
• Urethra

Multiple Choice

These organs are responsible for what?

• storing urine
• storing water
• filtering blood
• they don't have a particular job 

Multiple Choice

Using the picture, what is the structure of A?

• ureter
• kidney
• urinary bladder
• urethra

Multiple Choice

Which organ of the excretory system stores urine until the body is ready to eliminate it?

• ureters
• urethra
• urinary bladder
• urea

Multiple Choice

What is the main function of the excretory system?

• to collect and remove wastes from the body
• to strengthen skeletal muscles
• to protect the nervous system
• to bring oxygen to body cells