BIOS 251 & 252 COMP EXAM
Study online at https://quizlet.com/_d63g2j
1. Which of the following event will occur when depolar- D. Voltage-gated Na+
izing graded potential's reach the membrane of the channels open rapidly.
axon Hillock, causing its membrane potential to reach
threshold?
A. Ligand-gated Ca++ channels close rapidly
B. Voltage-gated Ca++ channels open rapidly
C. Ligand-gated Na+ channels close rapidly
D. Voltage-gated Na+ channels open rapidly
E. Ligand-gated Cl+ channels close rapidly
2. The attachment of the muscles tendon to the station- C. Origin ; Insertion
ary bone is called the _________? ; The attachment of the
muscles other tendon to the movable bone is called
the__________?
A. Origin ; action
B. Insertion ; action
C. Origin ; insertion
D. Stabilizer ; mover
E. Insertion ; origin
3. The sarcoplasmic reticulum stores D. Calcium ions
A. Oxygen
B. Glycogen
C. ATP
D. Calcium ions
E. Glucose
4. Which of the following is NOT a function of smooth C. Blinking the eyelid
muscle tissue?
1/9
, BIOS 251 & 252 COMP EXAM
Study online at https://quizlet.com/_d63g2j
A. Altering the diameter of the respiratory passage-
ways
B. Elevating hairs on the arm
C. Blinking the eyelid
D. Moving food materials along the digestive tract
E. Moving urine from the kidneys into the bladder
5. _________ is the summation of postsynaptic potentials B. Spatial summation
in response to stimuli that occur at different locations
in the membrane of a postsynaptic cell at the same
time
A. Cortical summation
B. Spatial summation
C. Temporal summation
D. Tactile summation
E. Olfactory summation
6. An inhibitory neurotransmitter ________ the postsynap- C. hyperpolarizes
tic membrane
A. Depolarizers
B. Repolarizes
C. Hyperpolarizes
D. Reverses the polarity of the
E. Moves channels to the internal axonal membrane
7. _______ cells function as immune/phagocytic cells with- C. Microglial
in the central nervous system
A. Ependymal
B. Astrocytes
C. Microglial
2/9
Study online at https://quizlet.com/_d63g2j
1. Which of the following event will occur when depolar- D. Voltage-gated Na+
izing graded potential's reach the membrane of the channels open rapidly.
axon Hillock, causing its membrane potential to reach
threshold?
A. Ligand-gated Ca++ channels close rapidly
B. Voltage-gated Ca++ channels open rapidly
C. Ligand-gated Na+ channels close rapidly
D. Voltage-gated Na+ channels open rapidly
E. Ligand-gated Cl+ channels close rapidly
2. The attachment of the muscles tendon to the station- C. Origin ; Insertion
ary bone is called the _________? ; The attachment of the
muscles other tendon to the movable bone is called
the__________?
A. Origin ; action
B. Insertion ; action
C. Origin ; insertion
D. Stabilizer ; mover
E. Insertion ; origin
3. The sarcoplasmic reticulum stores D. Calcium ions
A. Oxygen
B. Glycogen
C. ATP
D. Calcium ions
E. Glucose
4. Which of the following is NOT a function of smooth C. Blinking the eyelid
muscle tissue?
1/9
, BIOS 251 & 252 COMP EXAM
Study online at https://quizlet.com/_d63g2j
A. Altering the diameter of the respiratory passage-
ways
B. Elevating hairs on the arm
C. Blinking the eyelid
D. Moving food materials along the digestive tract
E. Moving urine from the kidneys into the bladder
5. _________ is the summation of postsynaptic potentials B. Spatial summation
in response to stimuli that occur at different locations
in the membrane of a postsynaptic cell at the same
time
A. Cortical summation
B. Spatial summation
C. Temporal summation
D. Tactile summation
E. Olfactory summation
6. An inhibitory neurotransmitter ________ the postsynap- C. hyperpolarizes
tic membrane
A. Depolarizers
B. Repolarizes
C. Hyperpolarizes
D. Reverses the polarity of the
E. Moves channels to the internal axonal membrane
7. _______ cells function as immune/phagocytic cells with- C. Microglial
in the central nervous system
A. Ependymal
B. Astrocytes
C. Microglial
2/9
