1|P a g e
BIOS 252 Comprehensive Exam (2025/2026)
Questions And 100% Correct Answers Graded A+
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.
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.
,2|P a g e
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
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
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
, 3|P a g e
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
The sarcoplasmic reticulum stores
A. Oxygen
B. Glycogen
C. ATP
D. Calcium ions
E. Glucose - ANSWER: D. Calcium ions
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
BIOS 252 Comprehensive Exam (2025/2026)
Questions And 100% Correct Answers Graded A+
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.
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.
,2|P a g e
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
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
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
, 3|P a g e
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
The sarcoplasmic reticulum stores
A. Oxygen
B. Glycogen
C. ATP
D. Calcium ions
E. Glucose - ANSWER: D. Calcium ions
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
