Advanced Neurobiology Exam 1 comprehensive Questions
and Answers with 100% Correct Answers | Latest Version
Question 1.
Resting membrane potential
Correct Answer: An electrical potential established across the plasma membrane of
all cells by the Na+/K+ ATPase and the K+ leak channels. IN most cells, the resting
membrane potential is approximately -70 mV with respect to the outside of the cell.
Question 2.
Depolarized cell
Correct Answer: Positively charged, Na+ enters cell
Question 3.
Hyperpolarized cell
Correct Answer: When a cell is more negative than RMP
Question 4.
Ion channels
Correct Answer: A transmembrane protein channel that allows a specific ion to
diffuse across the membrane down its concentration or electrochemical gradient.
Question 5.
Voltage-gated channels
Correct Answer: Open or close in response to changes in membrane potential. Most
important
Question 6.
Ligand-gated ion channel
Correct Answer: Type of membrane receptor that has a region that can act as a "gate"
when the receptor changes shape.
Question 7.
Mechanically-gated channels
Correct Answer: Open in response to physical deformation of the receptor
, Question 8.
Chemoreceptors
Correct Answer: Chemical sensors in the brain and blood vessels that identify
changing levels of oxygen and carbon dioxide
Question 9.
Thermoreceptors
Correct Answer: Respond to changes in temperature
Question 10.
Mechanoreceptors
Correct Answer: Respond to touch, pressure, vibration, stretch, and itch
Question 11.
Photoreceptors
Correct Answer: Rods and cones
Question 12.
Synapse
Correct Answer: The junction between the axon tip of the sending neuron and the
dendrite or cell body of the receiving neuron
Question 13.
saltatroy conduction
Correct Answer: process by which an electrical signal jumps across the nodes of
Ranvier to travel down the axon
Question 14.
Meninges
Correct Answer: dura mater, arachnoid mater, pia mater
Question 15.
Leptomeninges
Correct Answer: arachnoid and pia mater
Question 16.
Parietal lobe
Correct Answer: receives sensory input for touch and body position
and Answers with 100% Correct Answers | Latest Version
Question 1.
Resting membrane potential
Correct Answer: An electrical potential established across the plasma membrane of
all cells by the Na+/K+ ATPase and the K+ leak channels. IN most cells, the resting
membrane potential is approximately -70 mV with respect to the outside of the cell.
Question 2.
Depolarized cell
Correct Answer: Positively charged, Na+ enters cell
Question 3.
Hyperpolarized cell
Correct Answer: When a cell is more negative than RMP
Question 4.
Ion channels
Correct Answer: A transmembrane protein channel that allows a specific ion to
diffuse across the membrane down its concentration or electrochemical gradient.
Question 5.
Voltage-gated channels
Correct Answer: Open or close in response to changes in membrane potential. Most
important
Question 6.
Ligand-gated ion channel
Correct Answer: Type of membrane receptor that has a region that can act as a "gate"
when the receptor changes shape.
Question 7.
Mechanically-gated channels
Correct Answer: Open in response to physical deformation of the receptor
, Question 8.
Chemoreceptors
Correct Answer: Chemical sensors in the brain and blood vessels that identify
changing levels of oxygen and carbon dioxide
Question 9.
Thermoreceptors
Correct Answer: Respond to changes in temperature
Question 10.
Mechanoreceptors
Correct Answer: Respond to touch, pressure, vibration, stretch, and itch
Question 11.
Photoreceptors
Correct Answer: Rods and cones
Question 12.
Synapse
Correct Answer: The junction between the axon tip of the sending neuron and the
dendrite or cell body of the receiving neuron
Question 13.
saltatroy conduction
Correct Answer: process by which an electrical signal jumps across the nodes of
Ranvier to travel down the axon
Question 14.
Meninges
Correct Answer: dura mater, arachnoid mater, pia mater
Question 15.
Leptomeninges
Correct Answer: arachnoid and pia mater
Question 16.
Parietal lobe
Correct Answer: receives sensory input for touch and body position
