Match each term with its corresponding definition or description.
-Functional unit of contraction of a skeletal muscle
A)Voluntary muscle
B)Visceral muscle
C)Intercalated disks
D)Origin
E)Sarcomere
F)Insertion
G)Actin
H)Z line
I)Bursae
J)Myosin

Question

Quizplus · Accepted Answer

Sarcomere is the functional unit of contraction of a skeletal muscle.

Answer: A
 Voluntary muscle is a muscle that is under conscious control, such as skeletal muscle.

Answer: B
 Visceral muscle, also known as smooth muscle, is muscle tissue that is found in the walls of organs.

Answer: C
 Intercalated disks are specialized cell-to-cell junctions found in cardiac muscle tissue.

Answer: D
 Origin is the point of attachment of a muscle to a relatively stationary bone.

Answer: F
 Insertion is the point of attachment of a muscle to a bone that moves.

Answer: G
 Actin is a protein that is one of the main components of muscle fibers.

Answer: H
 Z line is a protein structure that anchors actin filaments and defines the boundaries of a sarcomere.

Answer: I
 Bursae are small fluid-filled sacs that reduce friction between bones and tendons or muscles.

Answer: J
 Myosin is a protein that is one of the main components of muscle fibers.

Match Each Term with Its Corresponding Definition or Description