Nee Deck Flashcards
(18 cards)
The heart wall is composed of three layers. Which layer actually contracts?
Myocardium
Oxygen-poor blood is pumped through the venae cavae to the right side of the heart, then through the pulmonary arteries to the lungs and back to the left side of the heart. (True/False)
True
Which hormones increase heart rate
Epinephrine and Thyroxine
What is the medical term for a “heart attack”?
Myocardial infarction
What is the longest vein in the body
Great saphenous vein
Which electrolytes modify heart activity?
Calcium (Ca), Potassium (K), Sodium (Na) – All of the above
Which blood vessels branch from the aorta and encircle the heart
Coronary arteries
What is the left AV valve called
Bicuspid or mitral valve
: Excess blood calcium causes prolonged contractions of the heart and may even stop it. (True/False)
True
What is the term for heart relaxation
Diastole
What progressive condition weakens the heart due to atherosclerosis, high blood pressure, and myocardial infarctions?
Congestive heart failure
The final branches of the abdominal aorta that supply the bladder and rectum are the:
Common iliac arteries
What is the space where the heart sits?
Mediastinum
If the myocardium is deprived of oxygen, what intense chest pains may occur?
Angina pectoris
A substantially slower heart rate is called:
Bradycardia
What is the term for a lack of adequate blood flow to the heart
Ischemia
Within the skull, the vertebral arteries join to form which single blood vessel serving the brainstem and cerebellum?
Basilar artery
