Identify the structure labeled “6.”
Figure 16-1 ANS Pathway
A) somatic motor neuron
B) preganglionic neuron
C) sensory neuron
D) ganglionic neuron
E) astrocyte
Figure 20-2 Cardiac Cycle
What volume is labeled “F” on the graph?
A) cardiac output
B) end-systolic volume
C) end-diastolic volume
D) total cardiac volume
E) stroke volume
The membrane potential in an undisturbed cell is called its
A) quiet potential.
B) inactive state.
C) passive state.
D) resting membrane potential.
E) interphase.
If the receptor on the postsynaptic membrane binds to norepinephrine, the synapse is
called
A) cholinergic.
B) anergic.
C) adrenergic.
D) synergic.
E) noradrenergic.
What is occurring at the area labeled #4?
Figure 12-2 The Nerve Action Potential
A) An inhibitory stimulus has occurred.
B) Chemically gated potassium channels have opened.
C) Excessive potassium has diffused out causing hyperpolarization.
D) Sodium ions have been pumped out of the neuron.
E) Excessive depolarization of the axon has occurred.
Identify the mismatched pair.
A) lunate; comma-shaped
B) triquetrum; column-shaped
C) pisiform; pea-shaped
D) trapezoid; wedge-shaped
E) There is no mismatched pair.
During appositional growth
A) bones grow longer.
B) bones grow wider.
C) cartilage replaces bone.
D) the epiphysis fuses with the diaphysis.
E) compact bone replaces spongy bone.
Accumulation of fluid in the peritoneal cavity as a result of liver or kidney disease,
malnutrition, or heart failure is known as
A) edema.
B) ischemia.
C) inflammation.
D) ascites.
E) infarction.
Blood is drained from the lower portion of the large intestine by the
A) celiac trunk.
B) gastric vein.
C) superior mesenteric vein.
D) inferior mesenteric vein.
E) inferior vena cava.
The term used to describe the crossing over of a tract to the side of the nervous system
opposite to where the axons originated is
A) decussation.
B) contralateral.
C) ascending crossovers.
D) pyramidal tracts.
E) consensual tracts.
If a cell has 18 chromosomes and undergoes mitosis how many chromosomes would
each daughter cell have?
A) 9
B) 36
C) 23
D) 18
E) The answer cannot be determined.
Newborns gain their immunity initially from
A) early immunizations during routine neo-natal check-ups.
B) contact with viruses and bacteria.
C) antibodies passed across the placenta from the mother.
D) contact with siblings.
E) breast milk.