Game Questions Flashcards
The bony labyrinth forms the boundary wall for
Perilymph
Which statement is INCORRECT?
There are 20 cones for every rod
Which of the following is true of myopia?
Concave lenses help correct this condition
The sense of smell can
Elicit an emotional response, exhibit adaptation, trigger a fight or flight response
(All of the above)
The spiral organ is found in the
Cochlea
The maculae of the ear
Contain hair cells
Hormones can be all of the following EXCEPT
Carbohydrates
In which region of all the adrenal gland is aldosterone produced?
Adrenal cortex
What are the effects of PTH?
Increase osteoclast, increase Ca2+ reabsorption in the kidney, increase Ca2+ absorption in the intestines
(All of the above)
Much of the endocrine system regulates itself through a process called
Negative feedback
Most of the amino acid-based hormones affect the target organs using
Intracellular second messengers
Which endocrine gland is tiny, yellow-brown in color, and arranged in thick, branching cords?
Parathyroid gland
For which hormone is the role in males NOT well understood?
PRL
The anterior pituitary stimulates other endocrine organs by secreting a group of hormones called
Tropic hormones
Cushings disease is caused by
Hypersecretion of the adrenal glands
This hormone is important in sodium regulation and therefore water balance?
Aldosterone
If Sarah has type A positive blood, she may receive blood from all of the following EXCEPT
AB positive
Which enzyme converts fibrinogen into fibrin ?
Thrombin
Which of the following cells fight virus-infected cells?
Lymphocytes
The target organ of erythropoietin is the
Red bone marrow
(Created in the kidneys)
Which organ produces most of the plasma proteins?
Liver
The immediate response to blood vessel damage is a
Vascular spasm
These cells contain histamine and are the least numerous of the circulating white blood cells.
Basophils
Which of the following is present in mature red blood cell?
Plasma membrane (RBCs cannot contain mitochondria or ribosomes because they are anaerobic, and they lose their nucleus during development)
Which of the following is a functional characteristic of blood?
Oxygen transport
Carbon dioxide bonds to what part of the hemoglobin molecule?
Globin
All four heart valves are closed during this time
Isovolumetric contraction
Which blood vessel(s) leave the heart and transport blood to the lungs?
Pulmonary arteries
Of the following, what is the best definition of arteries?
Carry blood away from the heart
Atrial repolarization occurs during this period of time, seen on an ECG.
QRS complex
An increase in heart rate by the sympathetic nervous system is a
Positive chonotropic effect
These structures prevent prolapse of the atrioventricular valves
Chordae tendineae
The bundle of His is located here
Interventricular septum
This valve is found between the right atrium and the right ventricle
Tricuspid
The entire ventricular myocardium remains depolarized during this time on an ECG.
S-T segment
The parasympathetic nervous system decreases heart rate by
Opening potassium gates (sodium=cardiac depolarization)
Blood being pumped out of the left ventricle enters the
Aorta
Which of the following is NOT a branch off the arch of the aorta?
Right common carotid artery
This part of the nervous system is responsible for vasomotor tone.
Sympathetic
These vessels carry blood toward the heart
Venules
If you have a blood pressure of 120/80 mmHg, what is your diastolic pressure?
80mmHg
These are the smallest blood vessels in our body
Capillaries
All of the following are found in large arteries EXCEPT
Valves
These vessels control blood flow to tissues
Arterioles
Which of the following blood vessel types have the greatest effect on peripheral resistance ?
Arterioles
Baroreceptors in our arteries respond to
An increase in blood pressure
In which of the following tissues would low oxygen levels cause vasoconstriction ?
Lungs
Which of the following does NOT modify cardiovascular center activity?
Thermoreceptors
If you have a blood pressure of 110/80 mmHg, what is your pulse pressure?
30mmHg
The exchange between blood vessels and cells occurs here
Capillaries
(Does this by diffusion)
The lub-dub heart sounds heard during auscultation of the heart are associated with
The heart valves closing
The amount of blood pumped out of each ventricle in 1 minute is called
Cardiac output
The most important factor for stretching cardiac muscle is
End diastolic volume
The greatest decrease in ventricular pressure occurs at this time
Isovolumetric relaxation
Nerve impulses are directly supplied to the papillary muscles by the
Purkinje fibers
Deoxygenated blood from the myocardium enters the right atrium through the
Coronary sinus
All of these structures can be identified in the ventricles EXCEPT
Pectinate muscle
During what phase does stroke volume decrease in the ventricles?
Ventricular ejection