Heart Flashcards
(32 cards)
when facing the heart, where are the 2 ventricles place
The bottom of the heart.
When facing the heart what order do the ventricles go in. (right - left or left - right )
Right to left
When facing the heart where are the atrium placed
The 2 sides of the heart in the middle
when facing the heart in what order are the atrium placed in
Right to left
what are the 2 vena cava called
superior and the inferior
Where is the superior vena cava found in the heart
At the top right of the heart
Where is the inferior vena cava found in the heart
At the bottom right of the heart
What is at the top middle of the heart
Aorta
What is in the left middle of the heart.
The pulmonary veins
What is at the top left of the heart
The pulmonary artery
How does oxygen enter the heart
It enters the left atrium through the 4 pulmonary veins.
What does the heart look like
An upside down pear `
Name 5 things in the heart
- Left ventricle
- Right ventricle
- Right artery
- Left artery
- Aorta
Name 3 valves in the heart
- pulmonary valve
- Aortic valve
- Tricuspid valve
How many pulmonary veins are the on the heart
4
What are the 4 main types of blood
A
B
AB
O
Name the pathway of air.
Nasal cavity, mouth, Pharynx, larynx, Trachea, bronchi, bronchioles, alveoli.
How many alveoli does an adult human have?
500-700 million
What is special about alveoli to allow gaseous exchange?
Their cells are one cell thick and contain squamous epithelial cells.
During inspiration, what happens to the diaphragm?
Contracts and flattens
During inspiration, what happens to the rib cage?
Moves upwards and outwards
During inspiration, what happens to the volume of the thoracic cavity?
Increases
During expiration, what happens to the diaphragm?
Pushes upwards and expands
During expiration, what happens to the rib cage?
Inwards and downwards
