anatomy test 2

Glucocorticoids are produced by: a. hypothalamus b. adrenal glands c. thymus d. pituitary

adrenal glands

Which of the following is a mineralocorticoid that helps maintains sodium balance? a. aldosterone b. epinephrine c. renin d. cortisol

aldosterone

Which of the following represents the smallest fraction (%) of circulating leukocytes (white blood cells)? a. basophils b. neutrophils c. monocytes d. lymphocytes

basophils

The electrocardiograph (ECG) Q-T interval represents: a. completion of ventricular depolarization b. beginning of atrial excitation to beginning of ventricular excitation c. completion of atrial depolarization d. beginning of ventricular depolarization through ventricular repolarization

beginning of ventricular depolarization through ventricular repolarization

Which of the following indicates that carbon monoxide is bound to hemoglobin? a. carbaminohemoglobin b. deoxyhemoglobin c. oxyhemoglobin d. carboxyhemoglobin

carboxyhemoglobin

Which of the following is part of the heart wall? a. parietal serous pericardium b. fibrous pericardium c. endocardium d. heart chamber

endocardium

Which of the following is enzymatically "cut" to form fibrin during blood clot formation? a. fibrinogen b. plasmin c. thrombin d. aspirin

fibrinogen

What hormone is synthesized by pancreatic beta islet cells and functions to decrease blood sugar levels (hint: it's a hypoglycemic agent)? a. prolactin b. aldosterone c. amylase d. insulin

insulin

Which of the following is a structure that is seen in heart muscle but notin skeletal muscle? a. intercalated discs b. gap junctions c. desmosomes d. sarcolemma

intercalated discs

Which of the following is the largest blood leukocyte, which functions to destroy microbes and remove dead tissue following infections? a. neutrophils b. basophils c. eosinophils d. monocytes

monocytes

Parathyroid hormone (PTH) is produced by _____________ gland and functions to ______ blood calcium levels. a. parathyroid / increase b. thyroid / decrease c. parathyroid /decrease d. thyroid / increase

parathyroid/ increase

What disease results from a lack of vitamin B12? a. thalassemia b. pernicious anemia c. hemophilia d. polycythemia

pernicious anemia

ADH: a. is secreted by the anterior pituitary b. release promotes water loss c. prevents urine formation d. alcohol promotes release

prevents urine formation

Blood leaving the right ventricle passes through: a. aortic semilunar valve b. pulmonary semilunar valve c. mitral valve d. tricuspid valve

pulmonary semilunar valve

Systemic circuit blood enters the right atrium by way of the: a. venae cavae b. fossa ovalis c. pulmonary veins d. coronary sinus

venae cavae