Quiz 4 Flashcards
A group of specialized cardiac muscle cells in the walls of the heart that send signals to the heart muscle causing it to contract. The main components of this system are the SA node, AV node, bundle of His, bundle branches, and Purkinje fibers. Heart, blood vessels, and blood.
The cardiac conduction system
One of three divisions of the autonomic nervous system. Sometimes called the rest and digest system, it conserves energy as it slows the heart rate, increases intestinal and gland activity, and relaxes sphincter muscles in the gastrointestinal tract.
The parasympathetic nervous system
Part of the autonomic nervous system (ANS). This nervous system activates what is often termed the fight or flight response.
The sympathetic nervous system (SNS)
The aorta divides into two main branches which supply blood to the pelvis and legs called:
Iliac arteries
The area of the brain between the spinal cord and the cerebrum, surrounded by the cerebellum. Controls functions necessary for life such as respiration, cardiac, and nerve function transmissions. Deep within cranium.
Brain Stem
Also known as cerebral infarction or stroke. If the symptoms are temporary without permanent brain damage, the event is called a:
Non-permanent damage.
transient ischemic attack (TIA)
An interruption of blood flow to the brain that results in the loss of brain function; also called a stroke.
Permanent damage.
Cerebrovascular Accident (CVA)
Metabolic causes of seizures:
Hypoxia Abnormal blood chemical values Hypoglycemia Poisoning Drug overdose Sudden withdrawal
Solid masses of tissue where much of the chemical work of the body takes place.
Liver
Spleen
Pancreas
Kidneys
Solid Organs
Structures through which materials pass.
stomach small intestines large intestines ureters urinary bladder
Hollow Organs
Liver functions:
Produce bile, store glucose, produce substances to regulate immune responses. Detoxifies chemicals and metabolizes drugs. The liver secretes bile that ends up back in the intestines. The liver also makes proteins important for blood clotting and other functions.
Caused by diabetes or hypertension. Develops over time and is irreversible.
Chronic renal failure
Acid waste from the body burning fat instead of glucose. As ketone levels go up, they spill into the urine. Kidneys do not work properly when over saturated with ketones. Ketones are made in the liver.
Ketones
a deep and labored breathing pattern often associated with severe metabolic acidosis, particularly diabetic ketoacidosis (DKA) but also kidney failure.
Kussmaul Respirations
Frequent urination
Polyuria
