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organelles
Angelo The Samurai
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Nervous tissue is made up of specialized units called?
Nervous tissue is made up of specialized units called nerve cells, or neurons. They detect different types of stimuli in the body.
Tissues are organized into functional units called?
Tissues are organized into organs. Cells organized into tissues Tissues organized into organs Organs organized into organ system
Increasing the number of active motor units is called?
Muscle recruitment
What is an increase in the number of active motor units in a muscle called?
recruitment
What cells of all animals are organized into structural and functional units called tissues EXCEPT for the?
sponges!
Which is true concering muscles tissue?
Skeletal muscle are muscles that are attached the bones. These muscles are designed to stretch and help the body to move.
The filaments are arranged along the muscle fiber in units called?
Actin filaments
Muscle cells contain contractible units called?
Myofibril, composed of actin and myosin.
What gives muscle fibers their striations?
The units of contraction called sarcomeres give striated muscle this appearance. Smooth muscle also has sarcomeres but they are not as neatly arranged so they appear smooth.
Are muscles always in a state of partial contaction?
A muscle fiber is made of many contractile units called sarcomeres.
Which type of muscle moves contents through hollow organs such as the intestines?
Something called smooth muscle moves the walls of all hollow organs except the heart. The muscle is called smooth because the microscopic subunits called sacromeres are not in any special arrangement. Skeletal muscle is called striated muscle because these units are in a uniform arrangement that appear as striations when seen under the microscope.
What is trauma to a muscle or the muscle-tendinous units from violent contraction or excessive forcible stretch?
a muscle strain
