BIOS 252 COMP EXAM | Questions with 100% Verified
Answers | Latest Update 2026/2027
Question: When compared to a classic lever system, the synovial joints of our Musculoskeletal
system play the role of the _________? A. Weight B. Force C. Fulcrum D. Lever E.
Resistance
Answer: C. Fulcrum.
Question: Which of the following event will occur when depolarizing graded potential's reach
the membrane of the 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
Answer: D. Voltage-gated Na+ channels open rapidly.
Question: The attachment of the muscles tendon to the stationary 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
Answer: C. Origin ; Insertion
Question: Which of the following fascicular arrangements would best be described as fascicles
arranged on only one side of the tendon? A. Unipennate B. Bipennate C. Fusiform D.
Circular E. Multipennate
Answer: A. Unipennate
Question: Which type of synapse involves the secretion of a neurotransmitter across the
synapse to stimulate the post- synaptic cell? A. Mechanical B. Nominal C.
Electrotonic D. Processing E. Chemical
Answer: E. Chemical
Question: Your friend nods 'yes' to you, going through flexion, extension, and hyper extension
in their enthusiastic response. This movement at the fulcrum represents a A.
First-class lever system B. Second-class lever system C. Third-class lever system D.
Fourth-class lever system E. Does not represent a lever system
Answer: A. First-class lever system
Question: The sarcoplasmic reticulum stores A. Oxygen B. Glycogen C. ATP D. Calcium ions E.
Glucose
Answer: D. Calcium ions
, Question: Which of the following is NOT a function of smooth muscle tissue? A. Altering the
diameter of the respiratory passageways 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
Answer: C. Blinking the eyelid
Question: In an isometric contraction, the ,uncle develops tension but does not? A. Shorten B.
Lengthen C. Expend energy D. Conduct electrical current E. Exhibit elasticity
Answer: A. Shorten
Question: _________ is the summation of postsynaptic potentials 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
Answer: B. Spatial summation
Question: Which of the following molecules energizes the myosin club- head so that it can pull
the actin molecule? A. Troponin B. Tropomyosin C. Calcium D. Potassium E. ATP
Answer: E. ATP
Question: Which of the following muscles is the major agonist for plantar-flexion of the foot A.
Gastrocnemius B. Tibialis anterior C. Triceps femoris D. Inferior rectus E. Peroneus
Answer: A. Gastrocnemius
Question: Which muscle is responsible for movement of the eye medically (adduction)? A.
Medial rectus B. Lateral rectus C. Inferior rectus D. Superior oblique E. Inferior
oblique
Answer: A. Medial rectus
Question: EPSPs (excitatory postsynaptic potentials) occur when A. More potassium ions than
usual leak out of a cell B. More calcium ions then usual leak out of a cell C. Chloride
ions enter the cell D. Sodium channels are opened and sodium enters the cell E.
Sodium channels are opened and sodium flows out of the cell
Answer: D. Sodium channels are opened and sodium enters the cell
Question: In skeletal muscle cells, the transverse tubule is an extension of the A. Sarcomere
B. Sarcoplasmic reticulum C. Sarcolemma D. Perimysium E. Terminal cisterna
Answer: C. Sarcolemma
Question: An inhibitory neurotransmitter ________ the postsynaptic membrane A. Depolarizers
B. Repolarizes C. Hyperpolarizes D. Reverses the polarity of the E. Moves channels
to the internal axonal membrane
Answer: C. hyperpolarizes
Answers | Latest Update 2026/2027
Question: When compared to a classic lever system, the synovial joints of our Musculoskeletal
system play the role of the _________? A. Weight B. Force C. Fulcrum D. Lever E.
Resistance
Answer: C. Fulcrum.
Question: Which of the following event will occur when depolarizing graded potential's reach
the membrane of the 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
Answer: D. Voltage-gated Na+ channels open rapidly.
Question: The attachment of the muscles tendon to the stationary 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
Answer: C. Origin ; Insertion
Question: Which of the following fascicular arrangements would best be described as fascicles
arranged on only one side of the tendon? A. Unipennate B. Bipennate C. Fusiform D.
Circular E. Multipennate
Answer: A. Unipennate
Question: Which type of synapse involves the secretion of a neurotransmitter across the
synapse to stimulate the post- synaptic cell? A. Mechanical B. Nominal C.
Electrotonic D. Processing E. Chemical
Answer: E. Chemical
Question: Your friend nods 'yes' to you, going through flexion, extension, and hyper extension
in their enthusiastic response. This movement at the fulcrum represents a A.
First-class lever system B. Second-class lever system C. Third-class lever system D.
Fourth-class lever system E. Does not represent a lever system
Answer: A. First-class lever system
Question: The sarcoplasmic reticulum stores A. Oxygen B. Glycogen C. ATP D. Calcium ions E.
Glucose
Answer: D. Calcium ions
, Question: Which of the following is NOT a function of smooth muscle tissue? A. Altering the
diameter of the respiratory passageways 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
Answer: C. Blinking the eyelid
Question: In an isometric contraction, the ,uncle develops tension but does not? A. Shorten B.
Lengthen C. Expend energy D. Conduct electrical current E. Exhibit elasticity
Answer: A. Shorten
Question: _________ is the summation of postsynaptic potentials 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
Answer: B. Spatial summation
Question: Which of the following molecules energizes the myosin club- head so that it can pull
the actin molecule? A. Troponin B. Tropomyosin C. Calcium D. Potassium E. ATP
Answer: E. ATP
Question: Which of the following muscles is the major agonist for plantar-flexion of the foot A.
Gastrocnemius B. Tibialis anterior C. Triceps femoris D. Inferior rectus E. Peroneus
Answer: A. Gastrocnemius
Question: Which muscle is responsible for movement of the eye medically (adduction)? A.
Medial rectus B. Lateral rectus C. Inferior rectus D. Superior oblique E. Inferior
oblique
Answer: A. Medial rectus
Question: EPSPs (excitatory postsynaptic potentials) occur when A. More potassium ions than
usual leak out of a cell B. More calcium ions then usual leak out of a cell C. Chloride
ions enter the cell D. Sodium channels are opened and sodium enters the cell E.
Sodium channels are opened and sodium flows out of the cell
Answer: D. Sodium channels are opened and sodium enters the cell
Question: In skeletal muscle cells, the transverse tubule is an extension of the A. Sarcomere
B. Sarcoplasmic reticulum C. Sarcolemma D. Perimysium E. Terminal cisterna
Answer: C. Sarcolemma
Question: An inhibitory neurotransmitter ________ the postsynaptic membrane A. Depolarizers
B. Repolarizes C. Hyperpolarizes D. Reverses the polarity of the E. Moves channels
to the internal axonal membrane
Answer: C. hyperpolarizes
