Anatomy And Phys. Flashcards
At the capillary level….
Systemic veins….
The flow?
Capillary level…. Oxygen moves from the blood to cell & carbon dioxide (waste) moves into the blood
Systemic veins carry carbon-dioxide rich blood back to the right side of the heart, which sends it out through pulmonary arteries to the lungs for reoxygenization
In the capillaries of the lungs the blood dumps it’s carbon-dioxide & takes on a new load of oxygen for delivery to the cells
Pulmonary veins carry the now oxygen- rich blood back to left
The ______ of the heart receives oxygen-rich blood from the lungs & pumps it out through
The LEFT SIDE of the heart receives oxygen-rich blood from the lungs & pumps it out through systemic arteries to capillaries in all parts of the body except the lungs
Flow chart of the heart
on pg 206… Chapt 8
Known
The heart lays… In dogs & cats…
Between 3rd & 7th rib
In horse 2nd & 6th rib
What is the mediastinum? Or…
The space between the two Pleural cavities that contain the lungs
Also known as interpleural space (between pleural covering both sides of lungs)
What is in the mediastinum or interpleural space?
Heart, trachea, esophagus, & some vascular structures
What is the outer layer of the heart? What does it consist of?
pericardium
Consists of two layers:
Outer Fibrous pericardium and inner serious pericardium
Describe the layers of the heart. Between which two layers is there a fluid filled space?
out fibrous: tough, fibrous connective tissue that protects the heart & loosely attaches to the diaphragm
In serous: 2 layers- inner visceral layer (epicardium) which is closely adhered to the underlying muscle, & outer parietal layer, which lies between the epicardium & fibrous pericardium
Between the 2 layers of inner is thin cavity of fluid that acts as lubricant between layers, allowing heart to smoothly expand & contract as it fills & empties
Describe the layers of the heart. Between which two layers is there a fluid filled space?
out fibrous: tough, fibrous connective tissue that protects the heart & loosely attaches to the diaphragm
In serous: 2 layers- inner visceral layer (epicardium) which is closely adhered to the underlying muscle, & outer parietal layer, which lies between the epicardium & fibrous pericardium
Between the 2 layers of inner is thin cavity of fluid that acts as lubricant between layers, allowing heart to smoothly expand & contract as it fills & empties
Visceral
Pertaining to the soft internal organ
Parietal
Wall of organ or cavity
Electrocardiogram- what is P, QRS, & T
What does it mean?
P wave- depolarization of aorta
QRS- ventricular depolarization
T- repolarization
Heart rate= how often the waves occur
Height & width of waves= heart abnormalities may be found
If there are more P waves then QRS?
Heart block!!!
Not every electrical impulse generated by SA node is being successfully transmitted through AV node to ventricles
