BIOS 252 COMP EXAM
QUESTIONS AND
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 - 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 - Answers -D. Voltage-gated Na+ channels
open rapidly.
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 - 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 - 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
E. Chemical - Answers -E. Chemical
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 - Answers -A. First-class lever system
The sarcoplasmic reticulum stores
A. Oxygen
B. Glycogen
C. ATP
D. Calcium ions
E. Glucose - Answers -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 - Answers -C. Blinking the eyelid
In an isometric contraction, the ,uncle develops tension but does not?
QUESTIONS AND
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 - 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 - Answers -D. Voltage-gated Na+ channels
open rapidly.
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 - 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 - 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
E. Chemical - Answers -E. Chemical
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 - Answers -A. First-class lever system
The sarcoplasmic reticulum stores
A. Oxygen
B. Glycogen
C. ATP
D. Calcium ions
E. Glucose - Answers -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 - Answers -C. Blinking the eyelid
In an isometric contraction, the ,uncle develops tension but does not?
