Question

skeletal muscles must be stimulated by nerve impulses to contract.

1. true
2. false

question 3 (2.5 points)
the part of a skeletal muscle that is attached to a fixed structure is called the ______.
origin
insertion
prime mover
ligament

Explanation:

First Question (True/False):

Skeletal muscles need motor neuron - generated nerve impulses at the neuromuscular junction to initiate contraction. So the statement is true.

In skeletal muscle anatomy, the origin is the attachment to a fixed (less movable) structure, insertion is to a movable structure, prime mover is a muscle role, and ligament connects bones. So the correct term is origin.

Answer:

1. True

Second Question (Fill - in - the - blank with options):