Arthropod Circulatory System Quiz

The fluid that moves around in the circulatory system of a typical arthropod is the _____.

• intracellular fluid

• hemolymph

• blood plasma

• digestive juices

• cytosol

An adaptive advantage of having a three-chambered heart, as found in amphibians, over the two-chambered heart of fish is that ______.

• there are capillary beds in both the respiratory organ and body systems of amphibians but not fish

• the additional chamber in the amphibian heart reduces blood flow to the respiratory organ

• fully oxygenated blood returning to the amphibian heart can undergo additional pumping to reach higher pressures

• fully oxygenated blood is kept completely separate from relatively deoxygenated blood in the heart

• amphibians can tolerate higher environmental pressures

Tags

NGSS.HS-LS4-4

The normal contraction of specialized atrial cells results from the activity of the _____, and the simultaneous contraction of the left and right atria is due to the _____.

• autorhythmic pacemaker cells; autorhythmic pacemaker cells

• gap junctions; gap junctions

• autonomic nervous system; somatic nervous system

• autorhythmic pacemaker cells; gap junctions

• gap junctions; autorhythmic pacemaker cells

As in Edgar Allan Poe’s short story “The Tell-Tale Heart,” a heart can continue to beat after it is removed from the body because ______.

• powerful ventricular contractions induce rebound contractions

• hormones controlling heartbeat are released spontaneously

• pulsing of blood in the heart maintains the heartbeat

• nerves in the heart fire without input

• pacemaker cells contract without input

Fluid is filtered from blood as it enters a capillary due to the _____, but fluid is reabsorbed as the blood exits a capillary due to the _____.

• hydrostatic pressure from smooth muscle; cooler temperatures in venous blood

• osmotic pressure from high levels of sodium in plasma but not extracellular fluid; osmotic pressure from reversed levels of sodium in extracellular fluid but not plasma

• blood pressure from the heart; osmotic pressure from proteins in the plasma

• osmotic pressure from salts; hydrostatic pressure from the veins

Concurrent flow is not as efficient in exchange as countercurrent flow because the latter provides _____.

• more diffusion at the beginning of capillary flow than midway through the capillary

• more diffusion at the end of capillary flow than midway through the capillary

• adequate diffusion of gases across weaker concentration gradients

• thinner capillary walls to promote diffusion

• greater surface area for diffusion

After blood enters the right atrium, it then enters the ______.

• right ventricle

• left atrium

• left ventricle

• aorta

When a girl goes running, her face begins to flush. Which of the following is most likely responsible for her red face?

• systolic pressure

• diastolic pressure

• vasoconstriction

• vasodilation

Tags

NGSS.HS-LS1-3

Which of the following have valves within them to prevent blood backflow?

• arteries

• veins

• capillaries

• arterioles

Which of the following organisms breathe through tracheae?

• segmented worms

• bony fish

• insects

• birds