BIOS 252 COMP 2024/2025 EXAM
WITH CORRECT ANSWERS
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 - CORRECT ANSWERS- 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 - CORRECT ANSWERS- D.
Voltage-gated Na+ channels open rapidly.
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 - CORRECT ANSWERS- E. ATP
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 - CORRECT ANSWERS- A. Gastrocnemius
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 - CORRECT ANSWERS- A. Medial rectus
, 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 - CORRECT ANSWERS- 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 - CORRECT ANSWERS- 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
WITH CORRECT ANSWERS
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 - CORRECT ANSWERS- 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 - CORRECT ANSWERS- D.
Voltage-gated Na+ channels open rapidly.
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 - CORRECT ANSWERS- E. ATP
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 - CORRECT ANSWERS- A. Gastrocnemius
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 - CORRECT ANSWERS- A. Medial rectus
, 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 - CORRECT ANSWERS- 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 - CORRECT ANSWERS- 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
