What ion is most abundant in extracellular fluid?
Sodium.
In a normally functioning cardiovascular system, where does the heartbeat originate?
Sinoatrial node.
Blood cells are produced by?
Red bone marrow.
What is the iron-containing component of a red blood cell?
Hemoglobin.
What is the function of angiotensin II in the regulation of blood pressure?
Vasoconstriction.
What enzyme is involved in fluid balance and is produced by the kidneys?
Renin.
Bile aids in the digestion of?
Fat.
What electrolyte plays an essential role in the clotting of blood?
Calcium.
Which pituitary hormone stimulates the process of gametogenesis?
Follicle stimulating hormone.
What hormone regulates urine output?
Antidiuretic.
What is a function of the liver?
Lipid metabolism.
What occurs as a result of the release of antidiuretic hormone?
Fluid volume in the body increases.
Which cardiac valve prevents blood from returning to the left ventricle of the heart?
Aortic.
Antidiuretic hormone is secreted by?
Posterior pituitary gland.
What does the prostate gland produce?
Substance to enhance sperm motility.
How can you describe the event of ovulation?
The Graafian follicle releases an ovum.
What is the result of the process of meiosis?
Sperm and ova are produced.
When blood leaves the left ventricle of the heart, what structure does it enter next?
Aorta.
What is the effect of aldosterone secretion on electrolyte levels?
Sodium levels are increased.
Testosterone production is regulated by what gland?
Pituitary.
An occurrence of too high of a concentration of what electrolyte is associated with cardiac arrhythmias?
Potassium.
Which part of the nephron is closest to the collecting duct?
Distal convoluted tubule.
What cell is primarily responsible for the destruction of old cells and invasive micro-organisms?
Macrophages.
What part of the brain is responsible for the regulation of body temperature?
Hypothalamus.
What occurs at the beginning of systole in a healthy heart?
The ventricles contract.
The release of histamine is associated with what cells?
Mast cells.
What structure of the gastrointestinal system absorbs iron and bile salts?
Ileum.
What is the correct order of meninges layers of the brain from inside to out?
Pia mater, arachnoid, dura mater.
What tissue connects bones to joints?
Ligaments.
What antibody type mediates the body’s response to an allergy?
IgE.
What blood vessels carry deoxygenated blood to the right atrium of the heart?
Superior and inferior vena cavae
Calcium concentration in the blood is controlled by what gland?
Parathyroid.
Where is the site of sperm maturation in the male reproductive system?
Epididymis.
In the process of wound healing, what plays a role in clearing a wound of cellular debris?
Neutrophils.