bio 108 exam 2

which group of vessels contains the largest portion of blood at rest?

• pulmonary vessels

• systemic capillaries

• systemic arteries and arterioles

• systemic veins and venules

which is the largest singles mass of lymphatic tissue in the body?

• tonsils

• spleen

• thymus

• appendix

which of the following is the pressure that propels blood to the tissues?

• mean arterial pressure

• diastolic blood pressure

• capillary blood pressure

• venous blood pressure

what is it called when the leukocytes leave the blood vessels and enter surroding tissue?

• margination

• leukopoeisis

• diapedesis

• leukocytosis

which of the following vessels has a sphincter?

• artery

• capillary

• vein

• arteriole

blood viscosity, total blood vessel length and blood vessel diameter are all important sources of what?

• blood pressure

• reducing friction

• blood flow

• resistance

which of the following hormones lowers blood pressure?

• atrial natriuretic peptide

• angiotensin

• epinephrine

• antidiuretic hormone

lymph is transported by which of the following?

• pulsations of nearby arteries

• skeletal pump

• respiratory pump

• all of the above

which of the following cells include apoptosis in cancer cells and virus infected cells?

• basophils

• neutrophils

• natural killer cells

• macrophages

which antibody mechanisms is the simplest and prevents antigens from binding to receptors on tissue cells?

• neutralization

• agglutination

• precipitation

• complement fixation