Exam 2 KINEISIOLOGY Flashcards
(103 cards)
Root Word for Heart
cardio
Root word for vessel
Vascular
Systemic Circuit
Supplies to body
Pulmonary circuit
Supply to lungs
Veins
Return blood to heart
O2 rich
Red O2 rich CO2 POOR
Arteries
Take blood from heart
O2 poor
Blue - O2 poor CO2 Rich
Heart Structures
300 g fist size
Location: mediastinum
Apex: left of midline
Base: widest part of heart
Epicardium
Epithelial tissue and fat
Holds major coronary vessels
Outer layer
Myocardium
Middle Layer
Cardiac Muscle tissue
Connective tissue
Endocardium
Epithelial tissue
Endothelium
Pericardium
Pericardial Sac
Pericardial Cavity
Fibrous Layer
Serous Layer
PS: double walled sac
PC: cavity and fluid
FL: outer wall
SL: inner wall
Atrioventricular Valves
Right AV is tricuspid
3 cusps
Left AV is bicuspid
2 cusps
Mitral valve
Semilunar Valves
Pulmonary Valve
1st semilunar valve
Between R ventricle and pulmonary trunk
Aourtic Vavle
2nd semilunar valve
L ventricle and aorta
Cardiac cycle
Systole and Diastole
Systole: chambers contracting
Diastole: chambers relaxed
Atrial systole while ventricular is diastole
Lub Dub
S1 is Lub - mitral and tricuspid valves close
S2 Aortic and Pulmonic valves close
Fetal Heart
Foramen Ovale
Ductus Arteriosus
Foramen Ovale - interatrial opening
Seals after birth
Ductus arteriosus - shunt b/w pulmonary artery and aorta
Begins closing 10-15 hrs after birth
Capillary Facts
Smallest blood vessel
Site of exchange of gasses, nutrients, wastes
Blood Volume
Average Adult - 5 liters 8% of body weight 70-75ml per kg of body mass
Red Blood Cells
Erythrocytes
Biconcave disc
Oxygen Carrie’s
Hemoglobin
White Blood Cells
Luekocytes
Mobile defense system
Count is 7000
Life span 1 week
Buffy coat
Platelets
Thrombocytes 
Small Buffy coat
Not cells
Clots blood
Stimulated repair of blood vessels
Second, most numerous formed element behind red blood cells
Secrete vasoconstrictors
Tour of France
Blood doping
Taking blood and spinning all red blood cells out the. Right before race they would inject it
Plasma
92% water
7% proteins
Sickle Cells Anemia
Inherited
Common in African and Hispanic
Bone marrow transplants may cure disease