Match each of the terms with its definition or explanation.
-Attachment point to the bone that moves during muscle contraction
A)Skeletal muscle
B)Smooth muscle
C)Origin
D)Insertion
E)Actin
F)Myosin
G)Motor unit
H)Neuromuscular junction
I)Isotonic
J)Isometric

Question

Quizplus · Accepted Answer

The insertion is the attachment point to the bone that moves during muscle contraction.

Answer: A
 Skeletal muscle refers to the type of muscle that attaches to bones and allows for movement.

Answer: C
 The origin is the attachment point to the bone that remains stationary during muscle contraction.

Answer: E
 Actin is a protein that forms the thin filaments in muscle tissue and interacts with myosin to generate muscle contraction.

Answer: F
 Myosin is a protein that forms the thick filaments in muscle tissue and interacts with actin to generate muscle contraction.

Answer: G
 A motor unit refers to a motor neuron and all of the muscle fibers it innervates.

Answer: H
 The neuromuscular junction is the site where a motor neuron meets a muscle fiber, allowing for the transmission of neural impulses and the initiation of muscle contraction.

Answer: I
 Isotonic refers to a type of muscle contraction where the muscle shortens and there is movement at a joint.

Answer: J
 Isometric refers to a type of muscle contraction where the muscle does not change length, but tension is still generated.

Match Each of the Terms with Its Definition or Explanation