Exam 10: Muscular Tissue

During an isotonic contraction of a muscle, the muscle shortens while the tension in the muscle increases, as in straightening the legs when rising from a sitting position to a standing position.

After years of living a sedentary life, you start a couch-to-13.1K training regimen. This change in activity includes daily long distance runs. These distance runs are inducing changes in which muscle fiber types?

Autorhythmicity is the ability to repeatedly generate spontaneous action potentials.

Somites give rise to the skeletal muscles of the thoracic and abdominal walls as well as the appendages.

When examined microscopically, striations are visible in the _____ muscle tissues.

The transverse (T) tubule is a specialized region of sarcolemma that is located at a neuromuscular junction.

Match the connective tissue components of skeletal muscle with the tissues. Match perimysium with the correct tissue type.

Identify this organelle of the muscle fiber (cell) labeled A.

One sarcomere contains all of the following EXCEPT:

Match the connective tissue components of skeletal muscle with the tissues. Identify the description of a motor end plate.

Track and field athletes specializing in the 100 meter dash will train their bodies for explosive power when pushing off the starting blocks. Which type of muscle fiber is being isolated during strength training to generate this explosive power?

A bundle (fascicle) of skeletal muscle fibers (cells) is separated from neighboring bundles by perimysium.

Match the connective tissue components of skeletal muscle with the tissues. Identify the characteristics of skeletal muscle tissue.

In skeletal muscle, the sarcoplasmic reticulum (SR):

As skeletal muscle ages, after age 30, which of the following does NOT occur?

Stretching before a workout is the best way to increase flexibility of muscles.

The muscle fibers that are oxidative and resistant to fatigue are the slow oxidative fibers.

Cardiac muscle tissue may be classified as either visceral (single-unit) or multiunit muscle tissue.

Which type of muscle develops from the mesodermal cells that envelope the developing gastrointestinal tract, viscera, and blood vessels?

The skeletal muscle fibers that fatigue most easily are: 1) red muscle fibers. 2) slow oxidative (type I) fibers. 3) fast glycolytic (type IIb) fibers.