Joints & Articulations
What term describes a joint that is slightly movable?
Amphiarthrotic
What kind of muscle tissue is non-striated and found in the walls of hollow organs?
Smooth muscle
What are the names of the three glute muscles?
Gluteus minimus, gluteus medius, and gluteus maximus
How are facial muscles unique from other muscles in the body?
They insert into skin instead of bone
Which word in the name “flexor carpi ulnaris” pertains to the muscle’s action?
Flexor
What is the major determinant for joint stability?
Muscle tone
Which characteristic of muscle tissue pertains to the ability to shorten forcibly when stimulated?
Contractility
What type of synergist muscle immobilizes a bone or muscle origin rather than enhances the agonist’s actions?
Fixators
Which movement is characterized by turning a bone around its own long axis?
Rotation
What is the deepest abdominal muscle?
Transversus abdominis
What type of fibrous joint is connected by ligaments and fibrous tissues?
Syndesmoses
What component of skeletal muscle is considered the functional contractile unit of muscle?
Sarcomere
What action do all four muscles in the quadriceps group share?
Knee extension
What two things must be available for the Cross-Bridge Cycle to occur?
Calcium & ATP
Which type of arthritis results from spirochete bacteria in deer tick bites?
Which joint injury is usually caused by compression or shear (rotational) stress?
Cartilage tears
What happens to the H-Zone as actin filaments overlap the M-line?
H-Zone shrinks and disappears
Which anterior shank muscle dorsiflexes the ankle and extends the hallux (big toe)?
Extensor hallucis longus
Which tendon can develop tendinitis caused by sudden increases in running intensity and duration?
Achilles tendon
What type of isotonic contraction is characterized by a muscle lengthening to produce force?
Eccentric
Which ligament prevents medial and lateral collapse of the knee/tibiofemoral joint?
Medial & Lateral Collateral Ligaments (MCL/LCL)
What type of skeletal muscle fiber relies largely on oxidative phosphorylation?
Type I (Slow-oxidative)
Which posterior shank muscle plantar flexes the ankle when the knee extends and aids in knee flexion when the ankle dorsiflexes?
Gastrocnemius
Which posterior upper arm muscles stabilize, retract, and attach to the medial border of the scapula?
Rhomboids
Which myofilament binds to actin and pulls it closer together?
Myosin (thick) filaments