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Anatomy 2 (Even)
N/A
49
Anatomy
Undergraduate 1
05/12/2012

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Term
In healthy adults the primary location of destruction of damaged RBCs is
Definition
Spleen
Term
The form of hemoglobin that has the highest affinity (binds most tightly) for oxygen
Definition
Hgb- F
Term
Which would you expect to see in elevated numbers in a peripheral blood sample from a patient who 10 days ago donated a pint of blood to the Red Cross
Definition
Reticulocytes
Term
The waste product bilirubin is produced from
Definition
Portions of heme molecules that do not contain iron
Term
The diease sickle cell anemia is a good example of what can happen when
Definition
The aa sequence of normal globin is altered
Term
The central factor in the coagulation process is the formation of this factor which converts Fibrinogen into Fibrin
Definition
Thrombin
Term
The central factor in initiating Fibrinolysis (dissollution of a a blood clot) is
Definition
Plasmin
Term
Which coagulation pathway is initiated by tissue factor from damaged vascular endothelium or peripheral tissue
Definition
Extrinsic Pathway
Term
The main event of the secondary homeostasis is
Definition
Formation of fibrin
Term
When a patient suffers a classic myocardial infarction, what is the most common factor that initiates the process
Definition
Formation of a platelet plug within a coronary artery
Term
Blood returning to the heart from the pulmonary circuit first enters the 
Definition
Left atrium
Term
The cusps of atrioventricular valves are attached to papillary muscles by the
Definition
Chordae tendineae
Term
The left and right pulmonary arteries carry blood to the 
Definition
Lungs
Term
The bicuspid (mitral) valve is located
Definition
Between the left atrium and left ventricle
Term
The first heart sound is heard when the
Definition
AV valves close
Term
During diastole in the cardiac cycle, the chambers of the heart:
Definition
Relax and fill with blood
Term

Compared to skeletal muscle, heart muscle has all the following charecteristics except:

Heart muscle has gap junctions that allow depolarization to pass cell to cell

Heart muscle is more dependent on aerobic metabolism

Heart muscle cells are shorter

Heart muscle cells have fewer mitochondria

Definition
Heart muscle cells have fewer mitochondria
Term
This structure is the "pacemaker" of the heart that sets the heart rate
Definition
Sinoatrial (SA) node
Term
Repolarization of the ventricles is represented on an EKG by
Definition
T wave
Term
The section of the conductive tissue that is responsible for the approximately 1/10 of a second delay between the depolarization of the atrium and the ventricles is
Definition
AtrioVentricular Node
Term
The prolonged depolarization seen in cardiac muscle is that result of which ion
Definition
Ca++
Term
The primary ion channel responsible for depolarization of a conductive cell to threshold
Definition
Slow sodium channels
Term
The primary ion channel responsible for repolarization of a heart muscle cell
Definition
Potassium channels
Term
If the vagus nerve is stimulated then we could expect what changes in heart function
Definition
Heart Rate Decreased, Heart Contractility Unchanged
Term
The cardiac output cannot increase indefinitely becuase
Definition
Available filling time becomes shorter as the heart rate increases
Term
Which under normal physiologic range will cause the greatest increase in the cardiac output
Definition
↑ Preload
Term
The volume of blood ejected from each ventricle during a contraction is called
Definition
Stroke volume
Term
In cardiac rhythms, prologation of which interval puts a patient at the greatest risk of life threatening arrthymias such as ventricular fibrilation
Definition
Prolonged Q-T interval
Term
When a patient with heart failure decompensates and presents with severe fluid overload with pulmonary edema and severe respiratory distress, which of the following families of medications is usually given first in order to msot rapidly begin relieving the patient's distress
Definition
Narcotic Medications such as Morphine
Term
The blood vessels that collect blood from all tissues and organs return it to the heart are the
Definition
Veins
Term
Which is the only blood vessel to have no smooth muscle
Definition
Capillary
Term
When blood flows through one capillary bed into veins and then flows though a second capillary bed before the blood returns to the heart is an example of
Definition
Portal System
Term
Which of the following arteries is not a conducting artery
Definition
Femoral arteries
Term
The primary point of control of the flow through an individual capillary is at the
Definition
Precapillary Sphincters
Term
The oncotic pressure of blood is primarily due to 
Definition
Albumin
Term
Fluid into the capillaries in the secondfirst half of their course becuase
Definition
Capillary Hydrostatic Pressure<Blood Osmotic Pressure
Term
Capillary that can freely allow large proteins and even blood cells to move freely in and out
Definition
Sinusoidal
Term
A person with a systolic blood pressure of 130 mm Hg and a diastolic pressure of 85 mm Hg would have a pulse pressure of approximately
Definition
55 mm Hg
Term
The primary mechanism that the body uses to regulate peripheral vascular resistance is
Definition
Vessel Radius
Term
The "BAD" cholesterol that transport excesses cholesterol from the tissue back to the liver is
Definition
Low density Lipoproteins
Term
If a blood vessels has its radius tripled then we would expect that its flow velocity would increase by a factor of
Definition
81X
Term
Secretion of this hormone has the greatest potential to elevate the viscosity of blood
Definition
Erythroproietin
Term
Which hormone is produced by the heart
Definition
Atrial Naturetic Hormone
Term
This reflex will cause slowing of the heart by stimulation of the parasympathetic nervous system and nerve impulse traveing to the heart over the vagus nerve
Definition
Baroreceptor reflex
Term
Increases in blood Carbon Dioxide or decreases in Oxygen will trigger this reflex
Definition
Chemoreceptor Reflex
Term
The arteries that supply the myocardium
Definition
Coronary Arteries
Term
Major arteries supplying the anterior and middle cerebral arteries
Definition
Internal Carotids
Term
Supplies most of the small bowel and the beginning of the colon
Definition
Superior Mesenteric
Term
This artery is the source of blood for the muscles that dorsiflex the foot
Definition
Anterior Tibial
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