Respiratory system + Blood components Flashcards
what does the Nasal cavities do
(stops dirt particles)
Pharynx
It carries air, food and fluid down from the nose and mouth. (Digestive system and respiratory)
Larynx
(voice box)(epiglottis little flap)
trachea
Trachea tube to connects the bronchi is made of rings of cartilage
What is the order of the respiratory system?
1 Nasal cavity 2 Pharynx 3 Larynx 4 Trachea 5 Bronchi 6 Bronchioles 7 Alveoli
what is diffusion
Diffusion from high concentration to low concentration
explain gas exchange
The alveoli is covered in capillaries and transport co2 blood into the alveoli and exchange co2 for o2 in the so that the blood can be filled with oxygen (o2 diffuses into the blood cells) co2 diffuses into the aveoli)
Is there more or less pressure during inhalation?
During Inhalation pressure decreases in the lunges (more space)
is there more or less pressure while exhalation
Exhale the oxygen in the lunges goes up causing less volume (less space) pressure increase
what is plasma made of
The plasma is made of water a transform blood and platelets
what do Red blood cells do
Red blood : transports oxygen and releases carbon dioxide
what do white blood cells do
White blood cells : protect and kill bacteria. ( contains nuclei)
what is a reflex
Reflex: involuntary
Reflexes dont have to travel up to your brain for interpretation and for this reason they happen quickly. A reflex action involves a simple nervous pathway called a reflex arc. Receptors cells send signals along a sensory nerve to the spinal cord which then passes it along to a motor nerve. A muscle receives the signal and contracts.