WorksheetsBIO 112 Exam 2 Reivew PLA
Total questions: 26
Worksheet time: 26mins
What is the name of the valve between an atrium and ventericle
Which node initiates atrial systole?
What determines whether O2 and CO2 undergo net diffusion into or out of capillaries?
Blood returning to the mammalian heart in a pulmonary vein drains first into the
. What happens when a resting neuron’s membrane depolarizes?
A common feature of action potentials is that they
Where are neurotransmitter receptors located?
Why are action potentials usually conducted in one direction?
Which of the following is the most direct result of depolarizing the presynaptic membrane of an axon terminal?
Suppose a particular neurotransmitter causes an IPSP in postsynaptic cell X and an EPSP in postsynaptic cell Y. A likely explanation is that_____
After surgical removal of the gallbladder, a person might need to limit his or her dietary intake of
Starch
Fats
Sugar
Protien
A simple nervous system
must include chemical senses, mechanoreception, and vision.
has information flow in only one direction: away from an integrating center.
includes sensory information, an integrating center, and effectors.
includes a minimum of 12 effector neurons
The central communication conduit between the brain and the rest of the body is the
brain stem.
nerve bundle.
spinal cord.
nervous system.
The two major anatomical divisions of the nervous system are the
sympathetic nervous system and parasympathetic nervous system.
central nervous system and peripheral nervous system.
sensory nervous system and motor nervous system.
voluntary nervous system and involuntary nervous system
What part of a neuron carries signals toward the part of the cell that houses the nucleus?
The speed of impulse conduction along an axon may be increased by
adding a myelin sheath
Which of the following statements about resting potential is true?
The sodium-potassium pump contributes to the resting membrane potential.
The resting potential exists because of differences in glucose concentration inside and outside the cell.
The concentration of sodium is much higher inside the cell than outside.
A resting membrane allows much more sodium than potassium to diffuse across.
Once an action potential is triggered, there is a
When you are very nervous, perhaps before you must speak in front of your college class, you notice that your mouth is dry and your heart is racing. This is most likely due to stimulation by the
sympathetic division of your autonomic nervous system.
enteric division of your autonomic nervous system
motor division of your parasympathetic nervous system
parasympathetic division of your autonomic nervous system.
The relationship between spinal nerves and the spinal cord is most like the relationship between
a bowl of spaghetti and the sauce that is poured onto it.
the vertical and horizontal threads woven together to form a piece of cloth.
an interstate highway and the many roads that intersect with it via on- and off-ramps.
the hairs on a person's head.
One of the most important branch points in the evolution of animals and their nervous systems was the appearance of
Botulinum toxin (Botox) produced by certain bacteria will
Neurotransmitters that open Na+ channels and trigger action potentials in receiving cells are called
The gap between the transmitting and receiving neurons in a chemical synapse is known as the
Action potentials relay different intensities of information due to the
Action potentials normally travel along an axon
toward the cell body.
either towards or away from the cell body
away from the cell body.
away from the synapse
