Heart Anatomy
How many ribs are in the human body ?
12 sets of ribs / 24 ribs
7 true ribs / attach to sternum
2 false ribs
2 floating ribs
Blood flow of the heart
Check card
Action potentials that apply to pace-maker cells
Depolarization, Pacemaker potential, Repolorization
List the order it takes through the respiratory system beginning at the nose and ending at the alviola
What're you going to get on this test ?
100%
Name a nerve that inmates the diaphragm
Phrenic nerve
List the functions of the respiratory system
Moving air in and out of the lungs
Gas exchange
Pulmonary ventilation
Capillary Exchange
What affects the movement or fluid from capillaries
Movement of substances in an out of capillaries
BP, Capillary permeability, osmosis affects the movement of fluid from capillaries
Ventricular Diaxole
Ventriucles are waiting
Name the single layer that surrounds all blood vessels
Endothelium
What are the functions of the heart?
- Ensuring a 1 way blood flow through the valves
- Blood pressure by contracting
- Routing blood separates from pulmonary circuit and systematic circuit
- Regulating blood supply by changing heart beat and force of contracting depending on metabolic needs of tissues.
Name the layers of the heart and recall their structures
Visceral Pericardium - outermost , fluid/curtain of the heart, also known as epicardium
Myocardium - middle layer that has muscle, smooth
Endocardium - innermost layer that lives in the heart
Discuss the features of cardiac muscle tissue and identify major differences from other muscle tissue
Cardiac muscle tissue (involuntary muscle) - pumping action
Contains 1-2 nucleii, rich in mitochondria
Intercalated discs, cell-cell contacts
Gap junction - allows for potentials to move from one cell to the next
Name blood supply and nerve for pericardium
Pericardiacophernic- Artery and viens
Pericardium Neurovasculate - referred pain in the phrenic nerve
What's the best food at the hospital ?
J-ELLO !
Locate the layer that vasa vasorum resides as well as purpose
Delivery of vascular supply to outer walls of vessels
Tunica Advetitia
Tunica Externa
Function of the nasal cavity
Clean, warm, and humidify air
contains olfactory nerve for smell
Name the structures anterior and posterior to locate the line that separates the superior and inferior mediastinum
Sternum and spine
Sternal angle
Ventricular Systole
Contraction of ventricles - Fire, squeezing, signal has been heard
The role of the pleura and serous fluid in pulmonary ventilation
allows for lungs to easily slide against ribs during respiration & provides surface tension
Name the contents " Superior vs Inferior Mediastium"
Superior - Sternal angle, first notch of the sternum
Trachea --> Aorta
Inferior - Aorta --> Diaphragm
Pulmonary cavity and pleura & sacs
What happens to the lungs during parasympatheric and sympathetic innervation ?
Parasympathetic: Constrict bronchial tree, Vasodialate pulmonary vessels
Sympathetic: Vasoconstrictors pulmonary vessels & dilates bronchial tree