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 ISC. 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 ISD. 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 - ANSWER ISC. 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 ISA. 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 ISE. 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 - ANSWER ISA. First-class lever
system
The sarcoplasmic reticulum stores