Section one- Anatomy and Physiology Flashcards
Atrium
The top chamber in the heart and the first place that blood enters the heart.
ventricle
The bottem chamber in the heart
Aorta
Takes oxygenated blood into the muscles
Vena Cava
Take de oxygenated blood into the heart
Carotid
The place in your neck where you can feel your pulse
Radial
The place in your wrist where you can feel your pulse
Temporal
The place in the side of your head where you can feel your pulse.
Trachea
Takes air into your lungs
Bronchioles
Take air from your bronchi to your alveoli
Bronci
Take air from the trachea into the bronchioles
Alveoli
Where the air diffuses into the blood
Pharynx
General term for pathways of air
Pulmonary artery
Take de oxygenated blood away from the heart into the lungs
Diffusion
The net movement of particles from high to low concentration
Graidient
the concentration
Tidal Volume
the amount of air you breath in
expiratory reserve volume
the amount of air left in the lungs when you breath all the way out
Expiration
Breathing out
Inspiration
Breath in
Ejected
Pushed out
Describe how the heart pumps blood around the body
Oxygenated blood enters the left atrium through the pulmonary veins. The left atrium contracts, pushing blood through the bicuspid valve into the left ventricle. The left ventricle then contracts forcing the blood through the semi lunar valve into the aorta to the muscles.
When the de oxygenated blood returns, it enters through the vena cava into the right atrium. This process then follows the same for the left side until it exits out through the pulmonary artery.
What are the adaptions of the arteries which make it good at its job?
They have thick muscular walls to allow them to carry blood flowing at high pressure away from the heart.
How veins adapted to be good at their job?
They carry blood at low pressure towards the heart so they have thinner walls.
How are capillaries adapted to be good at their job?
Vey thin walls to allow oxygen, carbon dioxide and nutrients to pass easily through to the muscles and organs.
What is vascular shunting?
When the body redistributes blood around the body to increase the supply of oxygen to your muscles during exercise.
What happens to your blood vessels when you exercise?
- Your arteries widen to stop blood pressure from getting to high
- Blood vessels in the muscles widen(vasodilation)
- Blood vessels in inactive organs narrow to divert blood towards the active muscles (vasodilation)
- Blood is shunted closer to the skin to cool down.
What is the function of the skeleton?
- support and structure
- Movement
- protection
- making blood cells
- mineral storage
What is the ulna?
Bottom bone in your forearm
What is the radius?
Top bone in your forearm