Chapter 10 practice quiz

The rectum abdominis is a ______ muscle, while the rectum femoris is a ______ muscle

Parallel; bipennate

The antagonist to the triceps brachii is the

biceps brachii

An Olympic sprinter readies for a race. After the sound of the starting gun, he propels himself forward from the starting block and immediately grimaces in pain, grabbing for the back of his thigh. within 48 hours he begins noticing extensive bruising on the back of his thigh extending into the back of the knee. He now has difficulty rising from a seated position and flexing his knee. Bending at the waist generates more pain. Which muscle is likely injured?

biceps femoris

An ______ muscle is contained within a region whereas an _____ muscle acts upon one region but has an attachment elsewhere

intrinsic and extrinsic

After taking their wedding vows, a bride and groom often ceremonially use which of the following muscles before walking away from the altar?

orbicularis oris

A clinician induces contraction of the gastrocnemius and soleus and notices that the foot does not plantar flex as expected. Which of the following would be a logical diagnosis?

ruptured calcaneal tendon

The muscles that laterally rotate and depress the scapula, as in shrugging and lowering the shoulders, are the _______

trapezius, serratus anterior