1. C. Fulcrum. 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
2. D. Voltage-gated Which of the following event will occur when depolariz-
Na+ channels ing graded potential's reach the membrane of the axon
open rapidly. Hillock, causing its membrane potential to reach thresh-
old?
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
3. C. Origin ; Inser- The attachment of the muscles tendon to the station-
tion 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
4. A. Unipennate 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
, BIOS 252 COMP EXAM WITH VERIFIED ANSWERS
D. Circular
E. Multipennate
5. E. Chemical 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
6. A. First-class Your friend nods 'yes' to you, going through flexion, exten-
lever system sion, 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
7. D. Calcium ions The sarcoplasmic reticulum stores
A. Oxygen
B. Glycogen
C. ATP
D. Calcium ions
E. Glucose
8. C. Blinking the Which of the following is NOT a function of smooth muscle
eyelid 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